create CDC event stream CRD (#1570)

* provide event stream API
* check manifest settings for logical decoding before creating streams
* operator updates Postgres config and creates replication user
* name FES like the Postgres cluster
* add delete case and fix updating streams + update unit test
* check if fes CRD exists before syncing
* existing slot must use the same plugin
* make id and payload columns configurable
* sync streams only when they are defined in manifest
* introduce applicationId for separate stream CRDs
* add FES to RBAC in chart
* disable streams in chart
* switch to pgoutput plugin and let operator create publications
* reflect code review and additional refactoring

Co-authored-by: Paŭlo Ebermann <paul.ebermann@zalando.de>

charts/postgres-operator/crds/postgresqls.yaml

@@ -474,6 +474,39 @@ spec:
                     type: string
                   gs_wal_path:
                     type: string
+              streams:
+                type: array
+                nullable: true
+                items:
+                  type: object
+                  required:
+                    - applicationId
+                    - database
+                    - tables
+                  properties:
+                    applicationId:
+                      type: string
+                    batchSize:
+                      type: integer
+                    database:
+                      type: string
+                    filter:
+                      type: object
+                      additionalProperties:
+                        type: string
+                    tables:
+                      type: object
+                      additionalProperties:
+                        type: object
+                        required:
+                          - eventType
+                        properties:
+                          eventType:
+                            type: string
+                          idColumn:
+                            type: string
+                          payloadColumn:
+                            type: string
               teamId:
                 type: string
               tls:

charts/postgres-operator/templates/clusterrole.yaml

@@ -34,6 +34,22 @@ rules:
   - get
   - list
   - watch
+# all verbs allowed for event streams
+{{- if .Values.enableStreams }}
+- apiGroups:
+  - zalando.org
+  resources:
+  - fabriceventstreams
+  verbs:
+  - create
+  - delete
+  - deletecollection
+  - get
+  - list
+  - patch
+  - update
+  - watch
+{{- end }}
 # to create or get/update CRDs when starting up
 - apiGroups:
   - apiextensions.k8s.io

charts/postgres-operator/values.yaml

@@ -368,6 +368,9 @@ configConnectionPooler:
   connection_pooler_default_cpu_limit: "1"
   connection_pooler_default_memory_limit: 100Mi
 
+# Zalando's internal CDC stream feature
+enableStreams: false
+
 rbac:
   # Specifies whether RBAC resources should be created
   create: true

docs/reference/cluster_manifest.md

@@ -536,3 +536,54 @@ Those parameters are grouped under the `tls` top-level key.
   relative to the "/tls/", which is mount path of the tls secret.
   If `caSecretName` is defined, the ca.crt path is relative to "/tlsca/",
   otherwise to the same "/tls/".
+
+## Change data capture streams
+
+This sections enables change data capture (CDC) streams via Postgres' 
+[logical decoding](https://www.postgresql.org/docs/14/logicaldecoding.html)
+feature and `pgoutput` plugin. While the Postgres operator takes responsibility
+for providing the setup to publish change events, it relies on external tools
+to consume them. At Zalando, we are using a workflow based on
+[Debezium Connector](https://debezium.io/documentation/reference/stable/connectors/postgresql.html)
+which can feed streams into Zalando’s distributed event broker [Nakadi](https://nakadi.io/)
+among others.
+
+The Postgres Operator creates custom resources for Zalando's internal CDC
+operator which will be used to set up the consumer part. Each stream object
+can have the following properties:
+
+* **applicationId**
+  The application name to which the database and CDC belongs to. For each
+  set of streams with a distinct `applicationId` a separate stream CR as well
+  as a separate logical replication slot will be created. This means there can
+  be different streams in the same database and streams with the same
+  `applicationId` are bundled in one stream CR. The stream CR will be called
+  like the Postgres cluster plus "-<applicationId>" suffix. Required.
+
+* **database**
+  Name of the database from where events will be published via Postgres'
+  logical decoding feature. The operator will take care of updating the
+  database configuration (setting `wal_level: logical`, creating logical
+  replication slots, using output plugin `pgoutput` and creating a dedicated
+  replication user). Required.
+
+* **tables**
+  Defines a map of table names and their properties (`eventType`, `idColumn`
+  and `payloadColumn`). The CDC operator is following the [outbox pattern](https://debezium.io/blog/2019/02/19/reliable-microservices-data-exchange-with-the-outbox-pattern/).
+  The application is responsible for putting events into a (JSON/B or VARCHAR)
+  payload column of the outbox table in the structure of the specified target
+  event type. The operator will create a [PUBLICATION](https://www.postgresql.org/docs/14/logical-replication-publication.html)
+  in Postgres for all tables specified for one `database` and `applicationId`.
+  The CDC operator will consume from it shortly after transactions are
+  committed to the outbox table. The `idColumn` will be used in telemetry for
+  the CDC operator. The names for `idColumn` and `payloadColumn` can be
+  configured. Defaults are `id` and `payload`. The target `eventType` has to
+  be defined. Required.
+
+* **filter**
+  Streamed events can be filtered by a jsonpath expression for each table.
+  Optional.
+
+* **batchSize**
+  Defines the size of batches in which events are consumed. Optional.
+  Defaults to 1.

hack/update-codegen.sh

@@ -17,7 +17,7 @@ trap "cleanup" EXIT SIGINT
 
 bash "${CODEGEN_PKG}/generate-groups.sh" all \
   "${OPERATOR_PACKAGE_ROOT}/pkg/generated" "${OPERATOR_PACKAGE_ROOT}/pkg/apis" \
-  "acid.zalan.do:v1" \
+  "acid.zalan.do:v1 zalando.org:v1" \
   --go-header-file "${SCRIPT_ROOT}"/hack/custom-boilerplate.go.txt
 
 cp -r "${OPERATOR_PACKAGE_ROOT}"/pkg/* "${TARGET_CODE_DIR}"

manifests/complete-postgres-manifest.yaml

@@ -3,6 +3,7 @@ kind: postgresql
 metadata:
   name: acid-test-cluster
 #  labels:
+#    application: test-app
 #    environment: demo
 #  annotations:
 #    "acid.zalan.do/controller": "second-operator"
@@ -203,3 +204,21 @@ spec:
 #              operator: In
 #              values:
 #                - enabled
+
+# Enables change data capture streams for defined database tables
+#  streams:
+#  - applicationId: test-app
+#    database: foo
+#    tables:
+#      data.state_pending_outbox:
+#        eventType: test-app.status-pending
+#      data.state_approved_outbox:
+#        eventType: test-app.status-approved
+#      data.orders_outbox:
+#        eventType: test-app.order-completed
+#        idColumn: o_id
+#        payloadColumn: o_payload
+#    # Optional. Filter ignores events before a certain txnId and lsn. Can be used to skip bad events
+#    filter:
+#      data.orders_outbox: "[?(@.source.txId > 500 && @.source.lsn > 123456)]"
+#    batchSize: 1000

manifests/operator-service-account-rbac.yaml

@@ -35,6 +35,20 @@ rules:
   - get
   - list
   - watch
+# all verbs allowed for event streams (Zalando-internal feature)
+# - apiGroups:
+#   - zalando.org
+#   resources:
+#   - fabriceventstreams
+#   verbs:
+#   - create
+#   - delete
+#   - deletecollection
+#   - get
+#   - list
+#   - patch
+#   - update
+#   - watch
 # to create or get/update CRDs when starting up
 - apiGroups:
   - apiextensions.k8s.io

manifests/postgresql.crd.yaml

@@ -472,6 +472,39 @@ spec:
                     type: string
                   gs_wal_path:
                     type: string
+              streams:
+                type: array
+                nullable: true
+                items:
+                  type: object
+                  required:
+                    - applicationId
+                    - database
+                    - tables
+                  properties:
+                    applicationId:
+                      type: string
+                    batchSize:
+                      type: integer
+                    database:
+                      type: string
+                    filter:
+                      type: object
+                      additionalProperties:
+                        type: string
+                    tables:
+                      type: object
+                      additionalProperties:
+                        type: object
+                        required:
+                          - eventType
+                        properties:
+                          eventType:
+                            type: string
+                          idColumn:
+                            type: string
+                          payloadColumn:
+                            type: string
               teamId:
                 type: string
               tls:

pkg/apis/acid.zalan.do/v1/crds.go

@@ -716,6 +716,54 @@ var PostgresCRDResourceValidation = apiextv1.CustomResourceValidation{
 							},
 						},
 					},
+					"streams": {
+						Type: "array",
+						Items: &apiextv1.JSONSchemaPropsOrArray{
+							Schema: &apiextv1.JSONSchemaProps{
+								Type:     "object",
+								Required: []string{"applicationId", "database", "tables"},
+								Properties: map[string]apiextv1.JSONSchemaProps{
+									"applicationId": {
+										Type: "string",
+									},
+									"batchSize": {
+										Type: "integer",
+									},
+									"database": {
+										Type: "string",
+									},
+									"filter": {
+										Type: "object",
+										AdditionalProperties: &apiextv1.JSONSchemaPropsOrBool{
+											Schema: &apiextv1.JSONSchemaProps{
+												Type: "string",
+											},
+										},
+									},
+									"tables": {
+										Type: "object",
+										AdditionalProperties: &apiextv1.JSONSchemaPropsOrBool{
+											Schema: &apiextv1.JSONSchemaProps{
+												Type:     "object",
+												Required: []string{"eventType"},
+												Properties: map[string]apiextv1.JSONSchemaProps{
+													"eventType": {
+														Type: "string",
+													},
+													"idColumn": {
+														Type: "string",
+													},
+													"payloadColumn": {
+														Type: "string",
+													},
+												},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
 					"teamId": {
 						Type: "string",
 					},

pkg/apis/acid.zalan.do/v1/postgresql_type.go

@@ -77,6 +77,7 @@ type PostgresSpec struct {
 	ServiceAnnotations    map[string]string           `json:"serviceAnnotations,omitempty"`
 	TLS                   *TLSDescription             `json:"tls,omitempty"`
 	AdditionalVolumes     []AdditionalVolume          `json:"additionalVolumes,omitempty"`
+	Streams               []Stream                    `json:"streams,omitempty"`
 
 	// deprecated json tags
 	InitContainersOld       []v1.Container `json:"init_containers,omitempty"`
@@ -231,3 +232,17 @@ type ConnectionPooler struct {
 
 	Resources `json:"resources,omitempty"`
 }
+
+type Stream struct {
+	ApplicationId string                 `json:"applicationId"`
+	Database      string                 `json:"database"`
+	Tables        map[string]StreamTable `json:"tables"`
+	Filter        map[string]string      `json:"filter,omitempty"`
+	BatchSize     uint32                 `json:"batchSize,omitempty"`
+}
+
+type StreamTable struct {
+	EventType     string `json:"eventType"`
+	IdColumn      string `json:"idColumn,omitempty" defaults:"id"`
+	PayloadColumn string `json:"payloadColumn,omitempty" defaults:"payload"`
+}

pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go

@@ -749,6 +749,13 @@ func (in *PostgresSpec) DeepCopyInto(out *PostgresSpec) {
 			(*in)[i].DeepCopyInto(&(*out)[i])
 		}
 	}
+	if in.Streams != nil {
+		in, out := &in.Streams, &out.Streams
+		*out = make([]Stream, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
 	if in.InitContainersOld != nil {
 		in, out := &in.InitContainersOld, &out.InitContainersOld
 		*out = make([]corev1.Container, len(*in))
@@ -1152,6 +1159,52 @@ func (in *StandbyDescription) DeepCopy() *StandbyDescription {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Stream) DeepCopyInto(out *Stream) {
+	*out = *in
+	if in.Tables != nil {
+		in, out := &in.Tables, &out.Tables
+		*out = make(map[string]StreamTable, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.Filter != nil {
+		in, out := &in.Filter, &out.Filter
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Stream.
+func (in *Stream) DeepCopy() *Stream {
+	if in == nil {
+		return nil
+	}
+	out := new(Stream)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *StreamTable) DeepCopyInto(out *StreamTable) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new StreamTable.
+func (in *StreamTable) DeepCopy() *StreamTable {
+	if in == nil {
+		return nil
+	}
+	out := new(StreamTable)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *TLSDescription) DeepCopyInto(out *TLSDescription) {
 	*out = *in

pkg/apis/zalando.org/register.go

@@ -0,0 +1,6 @@
+package zalando
+
+const (
+	// GroupName is the group name for the operator CRDs
+	GroupName = "zalando.org"
+)

pkg/apis/zalando.org/v1/fabriceventstream.go

@@ -0,0 +1,84 @@
+package v1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// +genclient
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// FabricEventStream defines FabricEventStream Custom Resource Definition Object.
+type FabricEventStream struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec FabricEventStreamSpec `json:"spec"`
+}
+
+// FabricEventStreamSpec defines the specification for the FabricEventStream TPR.
+type FabricEventStreamSpec struct {
+	ApplicationId string        `json:"applicationId"`
+	EventStreams  []EventStream `json:"eventStreams"`
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// FabricEventStreamList defines a list of FabricEventStreams .
+type FabricEventStreamList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata"`
+
+	Items []FabricEventStream `json:"items"`
+}
+
+// EventStream defines the source, flow and sink of the event stream
+type EventStream struct {
+	EventStreamFlow   EventStreamFlow   `json:"flow"`
+	EventStreamSink   EventStreamSink   `json:"sink"`
+	EventStreamSource EventStreamSource `json:"source"`
+}
+
+// EventStreamFlow defines the flow characteristics of the event stream
+type EventStreamFlow struct {
+	Type          string `json:"type"`
+	PayloadColumn string `json:"payloadColumn,omitempty" defaults:"payload"`
+}
+
+// EventStreamSink defines the target of the event stream
+type EventStreamSink struct {
+	Type         string `json:"type"`
+	EventType    string `json:"eventType,omitempty"`
+	MaxBatchSize uint32 `json:"maxBatchSize,omitempty"`
+}
+
+// EventStreamSource defines the source of the event stream and connection for FES operator
+type EventStreamSource struct {
+	Type             string           `json:"type"`
+	Schema           string           `json:"schema,omitempty" defaults:"public"`
+	EventStreamTable EventStreamTable `json:"table"`
+	Filter           string           `json:"filter,omitempty"`
+	Connection       Connection       `json:"jdbcConnection"`
+}
+
+// EventStreamTable defines the name and ID column to be used for streaming
+type EventStreamTable struct {
+	Name     string `json:"name"`
+	IDColumn string `json:"idColumn,omitempty" defaults:"id"`
+}
+
+// Connection to be used for allowing the FES operator to connect to a database
+type Connection struct {
+	Url             string `json:"jdbcUrl"`
+	SlotName        string `json:"slotName"`
+	PluginType      string `json:"pluginType,omitempty" defaults:"wal2json"`
+	PublicationName string `json:"publicationName,omitempty"`
+	DBAuth          DBAuth `json:"databaseAuthentication"`
+}
+
+// DBAuth specifies the credentials to be used for connecting with the database
+type DBAuth struct {
+	Type        string `json:"type"`
+	Name        string `json:"name,omitempty"`
+	UserKey     string `json:"userKey,omitempty"`
+	PasswordKey string `json:"passwordKey,omitempty"`
+}

pkg/apis/zalando.org/v1/register.go

@@ -0,0 +1,44 @@
+package v1
+
+import (
+	"github.com/zalando/postgres-operator/pkg/apis/zalando.org"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/client-go/kubernetes/scheme"
+)
+
+// APIVersion of the `fabriceventstream` CRD
+const (
+	APIVersion = "v1"
+)
+
+var (
+	schemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
+	AddToScheme   = schemeBuilder.AddToScheme
+)
+
+func init() {
+	err := AddToScheme(scheme.Scheme)
+	if err != nil {
+		panic(err)
+	}
+}
+
+// SchemeGroupVersion is the group version used to register these objects.
+var SchemeGroupVersion = schema.GroupVersion{Group: zalando.GroupName, Version: APIVersion}
+
+// Resource takes an unqualified resource and returns a Group-qualified GroupResource.
+func Resource(resource string) schema.GroupResource {
+	return SchemeGroupVersion.WithResource(resource).GroupResource()
+}
+
+// addKnownTypes adds the set of types defined in this package to the supplied scheme.
+func addKnownTypes(scheme *runtime.Scheme) error {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&FabricEventStream{},
+		&FabricEventStreamList{},
+	)
+	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
+	return nil
+}

pkg/apis/zalando.org/v1/zz_generated.deepcopy.go

@@ -0,0 +1,227 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright 2021 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Connection) DeepCopyInto(out *Connection) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Connection) DeepCopy() *Connection {
+	if in == nil {
+		return nil
+	}
+	out := new(Connection)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DBAuth) DeepCopyInto(out *DBAuth) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DBAuth) DeepCopy() *DBAuth {
+	if in == nil {
+		return nil
+	}
+	out := new(DBAuth)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStream) DeepCopyInto(out *EventStream) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStream) DeepCopy() *EventStream {
+	if in == nil {
+		return nil
+	}
+	out := new(EventStream)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamFlow) DeepCopyInto(out *EventStreamFlow) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamFlow) DeepCopy() *EventStreamFlow {
+	if in == nil {
+		return nil
+	}
+	out := new(EventStreamFlow)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamSink) DeepCopyInto(out *EventStreamSink) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamSink) DeepCopy() *EventStreamSink {
+	if in == nil {
+		return nil
+	}
+	out := new(EventStreamSink)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamSource) DeepCopyInto(out *EventStreamSource) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamSource) DeepCopy() *EventStreamSource {
+	if in == nil {
+		return nil
+	}
+	out := new(EventStreamSource)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamTable) DeepCopyInto(out *EventStreamTable) {
+	*out = *in
+	return
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EventStreamTable) DeepCopy() *EventStreamTable {
+	if in == nil {
+		return nil
+	}
+	out := new(EventStreamTable)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *FabricEventStreamSpec) DeepCopyInto(out *FabricEventStreamSpec) {
+	*out = *in
+	if in.EventStreams != nil {
+		in, out := &in.EventStreams, &out.EventStreams
+		*out = make([]EventStream, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new FabricEventStreamSpec.
+func (in *FabricEventStreamSpec) DeepCopy() *FabricEventStreamSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(FabricEventStreamSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *FabricEventStream) DeepCopyInto(out *FabricEventStream) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
+	in.Spec.DeepCopyInto(&out.Spec)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new FabricEventStream.
+func (in *FabricEventStream) DeepCopy() *FabricEventStream {
+	if in == nil {
+		return nil
+	}
+	out := new(FabricEventStream)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *FabricEventStream) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *FabricEventStreamList) DeepCopyInto(out *FabricEventStreamList) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]FabricEventStream, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new FabricEventStreamList.
+func (in *FabricEventStreamList) DeepCopy() *FabricEventStreamList {
+	if in == nil {
+		return nil
+	}
+	out := new(FabricEventStreamList)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *FabricEventStreamList) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}

pkg/cluster/cluster.go

@@ -361,6 +361,12 @@ func (c *Cluster) Create() error {
 	// something fails, report warning
 	c.createConnectionPooler(c.installLookupFunction)
 
+	if len(c.Spec.Streams) > 0 {
+		if err = c.syncStreams(); err != nil {
+			c.logger.Errorf("could not create streams: %v", err)
+		}
+	}
+
 	return nil
 }
 
@@ -861,6 +867,13 @@ func (c *Cluster) Update(oldSpec, newSpec *acidv1.Postgresql) error {
 		updateFailed = true
 	}
 
+	if len(c.Spec.Streams) > 0 {
+		if err := c.syncStreams(); err != nil {
+			c.logger.Errorf("could not sync streams: %v", err)
+			updateFailed = true
+		}
+	}
+
 	if !updateFailed {
 		// Major version upgrade must only fire after success of earlier operations and should stay last
 		if err := c.majorVersionUpgrade(); err != nil {
@@ -896,6 +909,10 @@ func (c *Cluster) Delete() {
 	defer c.mu.Unlock()
 	c.eventRecorder.Event(c.GetReference(), v1.EventTypeNormal, "Delete", "Started deletion of new cluster resources")
 
+	if err := c.deleteStreams(); err != nil {
+		c.logger.Warningf("could not delete event streams: %v", err)
+	}
+
 	// delete the backup job before the stateful set of the cluster to prevent connections to non-existing pods
 	// deleting the cron job also removes pods and batch jobs it created
 	if err := c.deleteLogicalBackupJob(); err != nil {
@@ -1050,6 +1067,23 @@ func (c *Cluster) initSystemUsers() {
 			c.systemUsers[constants.ConnectionPoolerUserKeyName] = connectionPoolerUser
 		}
 	}
+
+	// replication users for event streams are another exception
+	// the operator will create one replication user for all streams
+	if len(c.Spec.Streams) > 0 {
+		username := constants.EventStreamSourceSlotPrefix + constants.UserRoleNameSuffix
+		streamUser := spec.PgUser{
+			Origin:    spec.RoleConnectionPooler,
+			Name:      username,
+			Namespace: c.Namespace,
+			Flags:     []string{constants.RoleFlagLogin, constants.RoleFlagReplication},
+			Password:  util.RandomPassword(constants.PasswordLength),
+		}
+
+		if _, exists := c.pgUsers[username]; !exists {
+			c.pgUsers[username] = streamUser
+		}
+	}
 }
 
 func (c *Cluster) initPreparedDatabaseRoles() error {

pkg/cluster/database.go

@@ -46,6 +46,13 @@ const (
 	createExtensionSQL      = `CREATE EXTENSION IF NOT EXISTS "%s" SCHEMA "%s"`
 	alterExtensionSQL       = `ALTER EXTENSION "%s" SET SCHEMA "%s"`
 
+	getPublicationsSQL = `SELECT p.pubname, string_agg(pt.schemaname || '.' || pt.tablename, ', ' ORDER BY pt.schemaname, pt.tablename)
+	        FROM pg_publication p
+			JOIN pg_publication_tables pt ON pt.pubname = p.pubname
+			GROUP BY p.pubname;`
+	createPublicationSQL = `CREATE PUBLICATION "%s" FOR TABLE %s WITH (publish = 'insert, update');`
+	alterPublicationSQL  = `ALTER PUBLICATION "%s" SET TABLE %s;`
+
 	globalDefaultPrivilegesSQL = `SET ROLE TO "%s";
 			ALTER DEFAULT PRIVILEGES GRANT USAGE ON SCHEMAS TO "%s","%s";
 			ALTER DEFAULT PRIVILEGES GRANT SELECT ON TABLES TO "%s";
@@ -572,6 +579,68 @@ func (c *Cluster) execCreateOrAlterExtension(extName, schemaName, statement, doi
 	return nil
 }
 
+// getPublications returns the list of current database publications with tables
+// The caller is responsible for opening and closing the database connection
+func (c *Cluster) getPublications() (publications map[string]string, err error) {
+	var (
+		rows *sql.Rows
+	)
+
+	if rows, err = c.pgDb.Query(getPublicationsSQL); err != nil {
+		return nil, fmt.Errorf("could not query database publications: %v", err)
+	}
+
+	defer func() {
+		if err2 := rows.Close(); err2 != nil {
+			if err != nil {
+				err = fmt.Errorf("error when closing query cursor: %v, previous error: %v", err2, err)
+			} else {
+				err = fmt.Errorf("error when closing query cursor: %v", err2)
+			}
+		}
+	}()
+
+	dbPublications := make(map[string]string)
+
+	for rows.Next() {
+		var (
+			dbPublication       string
+			dbPublicationTables string
+		)
+
+		if err = rows.Scan(&dbPublication, &dbPublicationTables); err != nil {
+			return nil, fmt.Errorf("error when processing row: %v", err)
+		}
+		dbPublications[dbPublication] = dbPublicationTables
+	}
+
+	return dbPublications, err
+}
+
+// executeCreatePublication creates new publication for given tables
+// The caller is responsible for opening and closing the database connection.
+func (c *Cluster) executeCreatePublication(pubName, tableList string) error {
+	return c.execCreateOrAlterPublication(pubName, tableList, createPublicationSQL,
+		"creating publication", "create publication")
+}
+
+// executeAlterExtension changes the table list of the given publication.
+// The caller is responsible for opening and closing the database connection.
+func (c *Cluster) executeAlterPublication(pubName, tableList string) error {
+	return c.execCreateOrAlterPublication(pubName, tableList, alterPublicationSQL,
+		"changing publication", "alter publication tables")
+}
+
+func (c *Cluster) execCreateOrAlterPublication(pubName, tableList, statement, doing, operation string) error {
+
+	c.logger.Debugf("%s %q with table list %q", doing, pubName, tableList)
+	if _, err := c.pgDb.Exec(fmt.Sprintf(statement, pubName, tableList)); err != nil {
+		return fmt.Errorf("could not execute %s: %v", operation, err)
+	}
+
+	return nil
+}
+
 // Creates a connection pool credentials lookup function in every database to
 // perform remote authentication.
 func (c *Cluster) installLookupFunction(poolerSchema, poolerUser string) error {

pkg/cluster/streams.go

@@ -0,0 +1,363 @@
+package cluster
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"sort"
+	"strings"
+
+	acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	"github.com/zalando/postgres-operator/pkg/util"
+	"github.com/zalando/postgres-operator/pkg/util/constants"
+	"github.com/zalando/postgres-operator/pkg/util/k8sutil"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func (c *Cluster) createStreams(appId string) error {
+	c.setProcessName("creating streams")
+
+	fes := c.generateFabricEventStream(appId)
+	if _, err := c.KubeClient.FabricEventStreams(c.Namespace).Create(context.TODO(), fes, metav1.CreateOptions{}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *Cluster) updateStreams(newEventStreams *zalandov1.FabricEventStream) error {
+	c.setProcessName("updating event streams")
+
+	if _, err := c.KubeClient.FabricEventStreams(newEventStreams.Namespace).Update(context.TODO(), newEventStreams, metav1.UpdateOptions{}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *Cluster) deleteStreams() error {
+	c.setProcessName("deleting event streams")
+
+	// check if stream CRD is installed before trying a delete
+	_, err := c.KubeClient.CustomResourceDefinitions().Get(context.TODO(), constants.EventStreamCRDName, metav1.GetOptions{})
+	if k8sutil.ResourceNotFound(err) {
+		return nil
+	}
+
+	err = c.KubeClient.FabricEventStreams(c.Namespace).Delete(context.TODO(), c.Name, metav1.DeleteOptions{})
+	if err != nil {
+		return fmt.Errorf("could not delete event stream custom resource: %v", err)
+	}
+
+	return nil
+}
+
+func gatherApplicationIds(streams []acidv1.Stream) []string {
+	appIds := make([]string, 0)
+	for _, stream := range streams {
+		if !util.SliceContains(appIds, stream.ApplicationId) {
+			appIds = append(appIds, stream.ApplicationId)
+		}
+	}
+
+	return appIds
+}
+
+func (c *Cluster) syncPostgresConfig(requiredPatroniConfig acidv1.Patroni) error {
+	errorMsg := "no pods found to update config"
+
+	// if streams are defined wal_level must be switched to logical
+	requiredPgParameters := map[string]string{"wal_level": "logical"}
+
+	// apply config changes in pods
+	pods, err := c.listPods()
+	if err != nil {
+		errorMsg = fmt.Sprintf("could not list pods of the statefulset: %v", err)
+	}
+	for i, pod := range pods {
+		podName := util.NameFromMeta(pods[i].ObjectMeta)
+		effectivePatroniConfig, effectivePgParameters, err := c.patroni.GetConfig(&pod)
+		if err != nil {
+			errorMsg = fmt.Sprintf("could not get Postgres config from pod %s: %v", podName, err)
+			continue
+		}
+
+		_, err = c.checkAndSetGlobalPostgreSQLConfiguration(&pod, effectivePatroniConfig, requiredPatroniConfig, effectivePgParameters, requiredPgParameters)
+		if err != nil {
+			errorMsg = fmt.Sprintf("could not set PostgreSQL configuration options for pod %s: %v", podName, err)
+			continue
+		}
+
+		// Patroni's config endpoint is just a "proxy" to DCS. It is enough to patch it only once and it doesn't matter which pod is used
+		return nil
+	}
+
+	return fmt.Errorf(errorMsg)
+}
+
+func (c *Cluster) syncPublication(publication, dbName string, tables map[string]acidv1.StreamTable) error {
+	createPublications := make(map[string]string)
+	alterPublications := make(map[string]string)
+
+	defer func() {
+		if err := c.closeDbConn(); err != nil {
+			c.logger.Errorf("could not close database connection: %v", err)
+		}
+	}()
+
+	// check for existing publications
+	if err := c.initDbConnWithName(dbName); err != nil {
+		return fmt.Errorf("could not init database connection")
+	}
+
+	currentPublications, err := c.getPublications()
+	if err != nil {
+		return fmt.Errorf("could not get current publications: %v", err)
+	}
+
+	tableNames := make([]string, len(tables))
+	i := 0
+	for t := range tables {
+		tableName, schemaName := getTableSchema(t)
+		tableNames[i] = fmt.Sprintf("%s.%s", schemaName, tableName)
+		i++
+	}
+	sort.Strings(tableNames)
+	tableList := strings.Join(tableNames, ", ")
+
+	currentTables, exists := currentPublications[publication]
+	if !exists {
+		createPublications[publication] = tableList
+	} else if currentTables != tableList {
+		alterPublications[publication] = tableList
+	}
+
+	if len(createPublications)+len(alterPublications) == 0 {
+		return nil
+	}
+
+	for publicationName, tables := range createPublications {
+		if err = c.executeCreatePublication(publicationName, tables); err != nil {
+			return fmt.Errorf("creation of publication %q failed: %v", publicationName, err)
+		}
+	}
+	for publicationName, tables := range alterPublications {
+		if err = c.executeAlterPublication(publicationName, tables); err != nil {
+			return fmt.Errorf("update of publication %q failed: %v", publicationName, err)
+		}
+	}
+
+	return nil
+}
+
+func (c *Cluster) generateFabricEventStream(appId string) *zalandov1.FabricEventStream {
+	eventStreams := make([]zalandov1.EventStream, 0)
+
+	for _, stream := range c.Spec.Streams {
+		if stream.ApplicationId != appId {
+			continue
+		}
+		for tableName, table := range stream.Tables {
+			streamSource := c.getEventStreamSource(stream, tableName, table.IdColumn)
+			streamFlow := getEventStreamFlow(stream, table.PayloadColumn)
+			streamSink := getEventStreamSink(stream, table.EventType)
+
+			eventStreams = append(eventStreams, zalandov1.EventStream{
+				EventStreamFlow:   streamFlow,
+				EventStreamSink:   streamSink,
+				EventStreamSource: streamSource})
+		}
+	}
+
+	return &zalandov1.FabricEventStream{
+		TypeMeta: metav1.TypeMeta{
+			APIVersion: constants.EventStreamCRDApiVersion,
+			Kind:       constants.EventStreamCRDKind,
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:        fmt.Sprintf("%s-%s", c.Name, appId),
+			Namespace:   c.Namespace,
+			Annotations: c.AnnotationsToPropagate(c.annotationsSet(nil)),
+			// make cluster StatefulSet the owner (like with connection pooler objects)
+			OwnerReferences: c.ownerReferences(),
+		},
+		Spec: zalandov1.FabricEventStreamSpec{
+			ApplicationId: appId,
+			EventStreams:  eventStreams,
+		},
+	}
+}
+
+func (c *Cluster) getEventStreamSource(stream acidv1.Stream, tableName, idColumn string) zalandov1.EventStreamSource {
+	table, schema := getTableSchema(tableName)
+	streamFilter := stream.Filter[tableName]
+	return zalandov1.EventStreamSource{
+		Type:             constants.EventStreamSourcePGType,
+		Schema:           schema,
+		EventStreamTable: getOutboxTable(table, idColumn),
+		Filter:           streamFilter,
+		Connection: c.getStreamConnection(
+			stream.Database,
+			constants.EventStreamSourceSlotPrefix+constants.UserRoleNameSuffix,
+			stream.ApplicationId),
+	}
+}
+
+func getEventStreamFlow(stream acidv1.Stream, payloadColumn string) zalandov1.EventStreamFlow {
+	return zalandov1.EventStreamFlow{
+		Type:          constants.EventStreamFlowPgGenericType,
+		PayloadColumn: payloadColumn,
+	}
+}
+
+func getEventStreamSink(stream acidv1.Stream, eventType string) zalandov1.EventStreamSink {
+	return zalandov1.EventStreamSink{
+		Type:         constants.EventStreamSinkNakadiType,
+		EventType:    eventType,
+		MaxBatchSize: stream.BatchSize,
+	}
+}
+
+func getTableSchema(fullTableName string) (tableName, schemaName string) {
+	schemaName = "public"
+	tableName = fullTableName
+	if strings.Contains(fullTableName, ".") {
+		schemaName = strings.Split(fullTableName, ".")[0]
+		tableName = strings.Split(fullTableName, ".")[1]
+	}
+
+	return tableName, schemaName
+}
+
+func getOutboxTable(tableName, idColumn string) zalandov1.EventStreamTable {
+	return zalandov1.EventStreamTable{
+		Name:     tableName,
+		IDColumn: idColumn,
+	}
+}
+
+func getSlotName(dbName, appId string) string {
+	return fmt.Sprintf("%s_%s_%s", constants.EventStreamSourceSlotPrefix, dbName, strings.Replace(appId, "-", "_", -1))
+}
+
+func (c *Cluster) getStreamConnection(database, user, appId string) zalandov1.Connection {
+	return zalandov1.Connection{
+		Url:        fmt.Sprintf("jdbc:postgresql://%s.%s/%s?user=%s&ssl=true&sslmode=require", c.Name, c.Namespace, database, user),
+		SlotName:   getSlotName(database, appId),
+		PluginType: constants.EventStreamSourcePluginType,
+		DBAuth: zalandov1.DBAuth{
+			Type:        constants.EventStreamSourceAuthType,
+			Name:        c.credentialSecretNameForCluster(user, c.Name),
+			UserKey:     "username",
+			PasswordKey: "password",
+		},
+	}
+}
+
+func (c *Cluster) syncStreams() error {
+
+	c.setProcessName("syncing streams")
+
+	_, err := c.KubeClient.CustomResourceDefinitions().Get(context.TODO(), constants.EventStreamCRDName, metav1.GetOptions{})
+	if k8sutil.ResourceNotFound(err) {
+		c.logger.Debugf("event stream CRD not installed, skipping")
+		return nil
+	}
+
+	slots := make(map[string]map[string]string)
+	publications := make(map[string]map[string]acidv1.StreamTable)
+
+	requiredPatroniConfig := c.Spec.Patroni
+	if len(requiredPatroniConfig.Slots) > 0 {
+		slots = requiredPatroniConfig.Slots
+	}
+
+	// gather list of required slots and publications
+	for _, stream := range c.Spec.Streams {
+		slot := map[string]string{
+			"database": stream.Database,
+			"plugin":   constants.EventStreamSourcePluginType,
+			"type":     "logical",
+		}
+		slotName := getSlotName(stream.Database, stream.ApplicationId)
+		if _, exists := slots[slotName]; !exists {
+			slots[slotName] = slot
+			publications[slotName] = stream.Tables
+		} else {
+			streamTables := publications[slotName]
+			for tableName, table := range stream.Tables {
+				if _, exists := streamTables[tableName]; !exists {
+					streamTables[tableName] = table
+				}
+			}
+			publications[slotName] = streamTables
+		}
+	}
+
+	// no slots = no streams defined
+	if len(slots) > 0 {
+		requiredPatroniConfig.Slots = slots
+	} else {
+		return nil
+	}
+
+	// add extra logical slots to Patroni config
+	c.logger.Debug("syncing Postgres config for logical decoding")
+	err = c.syncPostgresConfig(requiredPatroniConfig)
+	if err != nil {
+		return fmt.Errorf("failed to snyc Postgres config for event streaming: %v", err)
+	}
+
+	// next, create publications to each created slot
+	c.logger.Debug("syncing database publications")
+	for publication, tables := range publications {
+		// but first check for existing publications
+		dbName := slots[publication]["database"]
+		err = c.syncPublication(publication, dbName, tables)
+		if err != nil {
+			c.logger.Warningf("could not sync publication %q in database %q: %v", publication, dbName, err)
+		}
+	}
+
+	err = c.createOrUpdateStreams()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *Cluster) createOrUpdateStreams() error {
+
+	appIds := gatherApplicationIds(c.Spec.Streams)
+	for _, appId := range appIds {
+		fesName := fmt.Sprintf("%s-%s", c.Name, appId)
+		effectiveStreams, err := c.KubeClient.FabricEventStreams(c.Namespace).Get(context.TODO(), fesName, metav1.GetOptions{})
+		if err != nil {
+			if !k8sutil.ResourceNotFound(err) {
+				return fmt.Errorf("failed reading event stream %s: %v", fesName, err)
+			}
+
+			c.logger.Infof("event streams do not exist, create it")
+			err = c.createStreams(appId)
+			if err != nil {
+				return fmt.Errorf("failed creating event stream %s: %v", fesName, err)
+			}
+			c.logger.Infof("event stream %q has been successfully created", fesName)
+		} else {
+			desiredStreams := c.generateFabricEventStream(appId)
+			if !reflect.DeepEqual(effectiveStreams.Spec, desiredStreams.Spec) {
+				c.logger.Debug("updating event streams")
+				desiredStreams.ObjectMeta.ResourceVersion = effectiveStreams.ObjectMeta.ResourceVersion
+				err = c.updateStreams(desiredStreams)
+				if err != nil {
+					return fmt.Errorf("failed updating event stream %s: %v", fesName, err)
+				}
+				c.logger.Infof("event stream %q has been successfully updated", fesName)
+			}
+		}
+	}
+
+	return nil
+}

pkg/cluster/streams_test.go

@@ -0,0 +1,244 @@
+package cluster
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strings"
+
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	v1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	fakezalandov1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/fake"
+	"github.com/zalando/postgres-operator/pkg/util"
+	"github.com/zalando/postgres-operator/pkg/util/config"
+	"github.com/zalando/postgres-operator/pkg/util/constants"
+	"github.com/zalando/postgres-operator/pkg/util/k8sutil"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/client-go/kubernetes/fake"
+)
+
+func newFakeK8sStreamClient() (k8sutil.KubernetesClient, *fake.Clientset) {
+	zalandoClientSet := fakezalandov1.NewSimpleClientset()
+	clientSet := fake.NewSimpleClientset()
+
+	return k8sutil.KubernetesClient{
+		FabricEventStreamsGetter: zalandoClientSet.ZalandoV1(),
+		PostgresqlsGetter:        zalandoClientSet.AcidV1(),
+		PodsGetter:               clientSet.CoreV1(),
+		StatefulSetsGetter:       clientSet.AppsV1(),
+	}, clientSet
+}
+
+var (
+	clusterName string = "acid-test-cluster"
+	namespace   string = "default"
+	appId       string = "test-app"
+	dbName      string = "foo"
+	fesUser     string = constants.EventStreamSourceSlotPrefix + constants.UserRoleNameSuffix
+	fesName     string = fmt.Sprintf("%s-%s", clusterName, appId)
+	slotName    string = fmt.Sprintf("%s_%s_%s", constants.EventStreamSourceSlotPrefix, dbName, strings.Replace(appId, "-", "_", -1))
+
+	pg = acidv1.Postgresql{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Postgresql",
+			APIVersion: "acid.zalan.do/v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      clusterName,
+			Namespace: namespace,
+		},
+		Spec: acidv1.PostgresSpec{
+			Databases: map[string]string{
+				dbName: dbName + constants.UserRoleNameSuffix,
+			},
+			Streams: []acidv1.Stream{
+				{
+					ApplicationId: appId,
+					Database:      "foo",
+					Tables: map[string]acidv1.StreamTable{
+						"data.bar": acidv1.StreamTable{
+							EventType:     "stream_type_a",
+							IdColumn:      "b_id",
+							PayloadColumn: "b_payload",
+						},
+					},
+					Filter: map[string]string{
+						"data.bar": "[?(@.source.txId > 500 && @.source.lsn > 123456)]",
+					},
+					BatchSize: uint32(100),
+				},
+			},
+			Volume: acidv1.Volume{
+				Size: "1Gi",
+			},
+		},
+	}
+
+	fes = &v1.FabricEventStream{
+		TypeMeta: metav1.TypeMeta{
+			APIVersion: constants.EventStreamCRDApiVersion,
+			Kind:       constants.EventStreamCRDKind,
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      fesName,
+			Namespace: namespace,
+			OwnerReferences: []metav1.OwnerReference{
+				metav1.OwnerReference{
+					APIVersion: "apps/v1",
+					Kind:       "StatefulSet",
+					Name:       "acid-test-cluster",
+					Controller: util.True(),
+				},
+			},
+		},
+		Spec: v1.FabricEventStreamSpec{
+			ApplicationId: appId,
+			EventStreams: []v1.EventStream{
+				{
+					EventStreamFlow: v1.EventStreamFlow{
+						PayloadColumn: "b_payload",
+						Type:          constants.EventStreamFlowPgGenericType,
+					},
+					EventStreamSink: v1.EventStreamSink{
+						EventType:    "stream_type_a",
+						MaxBatchSize: uint32(100),
+						Type:         constants.EventStreamSinkNakadiType,
+					},
+					EventStreamSource: v1.EventStreamSource{
+						Filter: "[?(@.source.txId > 500 && @.source.lsn > 123456)]",
+						Connection: v1.Connection{
+							DBAuth: v1.DBAuth{
+								Name:        fmt.Sprintf("fes-user.%s.credentials.postgresql.acid.zalan.do", clusterName),
+								PasswordKey: "password",
+								Type:        constants.EventStreamSourceAuthType,
+								UserKey:     "username",
+							},
+							Url:        fmt.Sprintf("jdbc:postgresql://%s.%s/foo?user=%s&ssl=true&sslmode=require", clusterName, namespace, fesUser),
+							SlotName:   slotName,
+							PluginType: constants.EventStreamSourcePluginType,
+						},
+						Schema: "data",
+						EventStreamTable: v1.EventStreamTable{
+							IDColumn: "b_id",
+							Name:     "bar",
+						},
+						Type: constants.EventStreamSourcePGType,
+					},
+				},
+			},
+		},
+	}
+)
+
+func TestGenerateFabricEventStream(t *testing.T) {
+	client, _ := newFakeK8sStreamClient()
+
+	var cluster = New(
+		Config{
+			OpConfig: config.Config{
+				Auth: config.Auth{
+					SecretNameTemplate: "{username}.{cluster}.credentials.{tprkind}.{tprgroup}",
+				},
+				PodManagementPolicy: "ordered_ready",
+				Resources: config.Resources{
+					ClusterLabels:        map[string]string{"application": "spilo"},
+					ClusterNameLabel:     "cluster-name",
+					DefaultCPURequest:    "300m",
+					DefaultCPULimit:      "300m",
+					DefaultMemoryRequest: "300Mi",
+					DefaultMemoryLimit:   "300Mi",
+					PodRoleLabel:         "spilo-role",
+				},
+			},
+		}, client, pg, logger, eventRecorder)
+
+	cluster.Name = clusterName
+	cluster.Namespace = namespace
+
+	_, err := cluster.createStatefulSet()
+	assert.NoError(t, err)
+
+	err = cluster.createOrUpdateStreams()
+	assert.NoError(t, err)
+
+	result := cluster.generateFabricEventStream(appId)
+
+	if !reflect.DeepEqual(result, fes) {
+		t.Errorf("Malformed FabricEventStream, expected %#v, got %#v", fes, result)
+	}
+
+	streamCRD, err := cluster.KubeClient.FabricEventStreams(namespace).Get(context.TODO(), fesName, metav1.GetOptions{})
+	assert.NoError(t, err)
+
+	if !reflect.DeepEqual(streamCRD, fes) {
+		t.Errorf("Malformed FabricEventStream, expected %#v, got %#v", fes, streamCRD)
+	}
+}
+
+func TestUpdateFabricEventStream(t *testing.T) {
+	client, _ := newFakeK8sStreamClient()
+
+	var cluster = New(
+		Config{
+			OpConfig: config.Config{
+				PodManagementPolicy: "ordered_ready",
+				Resources: config.Resources{
+					ClusterLabels:        map[string]string{"application": "spilo"},
+					ClusterNameLabel:     "cluster-name",
+					DefaultCPURequest:    "300m",
+					DefaultCPULimit:      "300m",
+					DefaultMemoryRequest: "300Mi",
+					DefaultMemoryLimit:   "300Mi",
+					PodRoleLabel:         "spilo-role",
+				},
+			},
+		}, client, pg, logger, eventRecorder)
+
+	_, err := cluster.KubeClient.Postgresqls(namespace).Create(
+		context.TODO(), &pg, metav1.CreateOptions{})
+	assert.NoError(t, err)
+	err = cluster.createOrUpdateStreams()
+	assert.NoError(t, err)
+
+	var pgSpec acidv1.PostgresSpec
+	pgSpec.Streams = []acidv1.Stream{
+		{
+			ApplicationId: appId,
+			Database:      dbName,
+			Tables: map[string]acidv1.StreamTable{
+				"data.bar": acidv1.StreamTable{
+					EventType:     "stream_type_b",
+					IdColumn:      "b_id",
+					PayloadColumn: "b_payload",
+				},
+			},
+			BatchSize: uint32(250),
+		},
+	}
+	patch, err := json.Marshal(struct {
+		PostgresSpec interface{} `json:"spec"`
+	}{&pgSpec})
+	assert.NoError(t, err)
+
+	pgPatched, err := cluster.KubeClient.Postgresqls(namespace).Patch(
+		context.TODO(), cluster.Name, types.MergePatchType, patch, metav1.PatchOptions{}, "spec")
+	assert.NoError(t, err)
+
+	cluster.Postgresql.Spec = pgPatched.Spec
+	err = cluster.createOrUpdateStreams()
+	assert.NoError(t, err)
+
+	streamCRD, err := cluster.KubeClient.FabricEventStreams(namespace).Get(context.TODO(), fesName, metav1.GetOptions{})
+	assert.NoError(t, err)
+
+	result := cluster.generateFabricEventStream(appId)
+	if !reflect.DeepEqual(result, streamCRD) {
+		t.Errorf("Malformed FabricEventStream, expected %#v, got %#v", streamCRD, result)
+	}
+}

pkg/cluster/sync.go

@@ -81,7 +81,7 @@ func (c *Cluster) Sync(newSpec *acidv1.Postgresql) error {
 		return err
 	}
 
-	c.logger.Debugf("syncing statefulsets")
+	c.logger.Debug("syncing statefulsets")
 	if err = c.syncStatefulSet(); err != nil {
 		if !k8sutil.ResourceAlreadyExists(err) {
 			err = fmt.Errorf("could not sync statefulsets: %v", err)
@@ -107,17 +107,17 @@ func (c *Cluster) Sync(newSpec *acidv1.Postgresql) error {
 
 	// create database objects unless we are running without pods or disabled that feature explicitly
 	if !(c.databaseAccessDisabled() || c.getNumberOfInstances(&newSpec.Spec) <= 0 || c.Spec.StandbyCluster != nil) {
-		c.logger.Debugf("syncing roles")
+		c.logger.Debug("syncing roles")
 		if err = c.syncRoles(); err != nil {
 			err = fmt.Errorf("could not sync roles: %v", err)
 			return err
 		}
-		c.logger.Debugf("syncing databases")
+		c.logger.Debug("syncing databases")
 		if err = c.syncDatabases(); err != nil {
 			err = fmt.Errorf("could not sync databases: %v", err)
 			return err
 		}
-		c.logger.Debugf("syncing prepared databases with schemas")
+		c.logger.Debug("syncing prepared databases with schemas")
 		if err = c.syncPreparedDatabases(); err != nil {
 			err = fmt.Errorf("could not sync prepared database: %v", err)
 			return err
@@ -129,6 +129,14 @@ func (c *Cluster) Sync(newSpec *acidv1.Postgresql) error {
 		return fmt.Errorf("could not sync connection pooler: %v", err)
 	}
 
+	if len(c.Spec.Streams) > 0 {
+		c.logger.Debug("syncing streams")
+		if err = c.syncStreams(); err != nil {
+			err = fmt.Errorf("could not sync streams: %v", err)
+			return err
+		}
+	}
+
 	// Major version upgrade must only run after success of all earlier operations, must remain last item in sync
 	if err := c.majorVersionUpgrade(); err != nil {
 		c.logger.Errorf("major version upgrade failed: %v", err)
@@ -401,7 +409,7 @@ func (c *Cluster) syncStatefulSet() error {
 	}
 
 	// get Postgres config, compare with manifest and update via Patroni PATCH endpoint if it differs
-	// Patroni's config endpoint is just a "proxy" to DCS. It is enough to patch it only once and it doesn't matter which pod is used.
+	// Patroni's config endpoint is just a "proxy" to DCS. It is enough to patch it only once and it doesn't matter which pod is used
 	for i, pod := range pods {
 		patroniConfig, pgParameters, err := c.getPatroniConfig(&pod)
 		if err != nil {
@@ -414,11 +422,13 @@ func (c *Cluster) syncStatefulSet() error {
 		// empty config probably means cluster is not fully initialized yet, e.g. restoring from backup
 		// do not attempt a restart
 		if !reflect.DeepEqual(patroniConfig, acidv1.Patroni{}) || len(pgParameters) > 0 {
-			restartMasterFirst, err = c.checkAndSetGlobalPostgreSQLConfiguration(&pod, patroniConfig, pgParameters)
+			// compare config returned from Patroni with what is specified in the manifest
+			restartMasterFirst, err = c.checkAndSetGlobalPostgreSQLConfiguration(&pod, patroniConfig, c.Spec.Patroni, pgParameters, c.Spec.Parameters)
 			if err != nil {
 				c.logger.Warningf("could not set PostgreSQL configuration options for pod %s: %v", pods[i].Name, err)
 				continue
 			}
+
 			// it could take up to LoopWait to apply the config
 			time.Sleep(time.Duration(restartWait)*time.Second + time.Second*2)
 			break
@@ -526,40 +536,39 @@ func (c *Cluster) AnnotationsToPropagate(annotations map[string]string) map[stri
 
 // checkAndSetGlobalPostgreSQLConfiguration checks whether cluster-wide API parameters
 // (like max_connections) have changed and if necessary sets it via the Patroni API
-func (c *Cluster) checkAndSetGlobalPostgreSQLConfiguration(pod *v1.Pod, patroniConfig acidv1.Patroni, effectivePgParameters map[string]string) (bool, error) {
+func (c *Cluster) checkAndSetGlobalPostgreSQLConfiguration(pod *v1.Pod, effectivePatroniConfig, desiredPatroniConfig acidv1.Patroni, effectivePgParameters, desiredPgParameters map[string]string) (bool, error) {
 	configToSet := make(map[string]interface{})
 	parametersToSet := make(map[string]string)
 	restartMaster := make([]bool, 0)
 	requiresMasterRestart := false
 
-	// compare options from config with c.Spec.Patroni from manifest
+	// compare effective and desired Patroni config options
-	desiredPatroniConfig := c.Spec.Patroni
+	if desiredPatroniConfig.LoopWait > 0 && desiredPatroniConfig.LoopWait != effectivePatroniConfig.LoopWait {
-	if desiredPatroniConfig.LoopWait > 0 && desiredPatroniConfig.LoopWait != patroniConfig.LoopWait {
 		configToSet["loop_wait"] = desiredPatroniConfig.LoopWait
 	}
-	if desiredPatroniConfig.MaximumLagOnFailover > 0 && desiredPatroniConfig.MaximumLagOnFailover != patroniConfig.MaximumLagOnFailover {
+	if desiredPatroniConfig.MaximumLagOnFailover > 0 && desiredPatroniConfig.MaximumLagOnFailover != effectivePatroniConfig.MaximumLagOnFailover {
 		configToSet["maximum_lag_on_failover"] = desiredPatroniConfig.MaximumLagOnFailover
 	}
-	if desiredPatroniConfig.PgHba != nil && !reflect.DeepEqual(desiredPatroniConfig.PgHba, patroniConfig.PgHba) {
+	if desiredPatroniConfig.PgHba != nil && !reflect.DeepEqual(desiredPatroniConfig.PgHba, effectivePatroniConfig.PgHba) {
 		configToSet["pg_hba"] = desiredPatroniConfig.PgHba
 	}
-	if desiredPatroniConfig.RetryTimeout > 0 && desiredPatroniConfig.RetryTimeout != patroniConfig.RetryTimeout {
+	if desiredPatroniConfig.RetryTimeout > 0 && desiredPatroniConfig.RetryTimeout != effectivePatroniConfig.RetryTimeout {
 		configToSet["retry_timeout"] = desiredPatroniConfig.RetryTimeout
 	}
-	if desiredPatroniConfig.SynchronousMode != patroniConfig.SynchronousMode {
+	if desiredPatroniConfig.SynchronousMode != effectivePatroniConfig.SynchronousMode {
 		configToSet["synchronous_mode"] = desiredPatroniConfig.SynchronousMode
 	}
-	if desiredPatroniConfig.SynchronousModeStrict != patroniConfig.SynchronousModeStrict {
+	if desiredPatroniConfig.SynchronousModeStrict != effectivePatroniConfig.SynchronousModeStrict {
 		configToSet["synchronous_mode_strict"] = desiredPatroniConfig.SynchronousModeStrict
 	}
-	if desiredPatroniConfig.TTL > 0 && desiredPatroniConfig.TTL != patroniConfig.TTL {
+	if desiredPatroniConfig.TTL > 0 && desiredPatroniConfig.TTL != effectivePatroniConfig.TTL {
 		configToSet["ttl"] = desiredPatroniConfig.TTL
 	}
 
 	// check if specified slots exist in config and if they differ
 	slotsToSet := make(map[string]map[string]string)
 	for slotName, desiredSlot := range desiredPatroniConfig.Slots {
-		if effectiveSlot, exists := patroniConfig.Slots[slotName]; exists {
+		if effectiveSlot, exists := effectivePatroniConfig.Slots[slotName]; exists {
 			if reflect.DeepEqual(desiredSlot, effectiveSlot) {
 				continue
 			}
@@ -570,8 +579,7 @@ func (c *Cluster) checkAndSetGlobalPostgreSQLConfiguration(pod *v1.Pod, patroniC
 		configToSet["slots"] = slotsToSet
 	}
 
-	// compare parameters under postgresql section with c.Spec.Postgresql.Parameters from manifest
+	// compare effective and desired parameters under postgresql section in Patroni config
-	desiredPgParameters := c.Spec.Parameters
 	for desiredOption, desiredValue := range desiredPgParameters {
 		effectiveValue := effectivePgParameters[desiredOption]
 		if isBootstrapOnlyParameter(desiredOption) && (effectiveValue != desiredValue) {
@@ -614,7 +622,7 @@ func (c *Cluster) checkAndSetGlobalPostgreSQLConfiguration(pod *v1.Pod, patroniC
 	c.logger.Debugf("patching Postgres config via Patroni API on pod %s with following options: %s",
 		podName, configToSetJson)
 	if err = c.patroni.SetConfig(pod, configToSet); err != nil {
-		return requiresMasterRestart, fmt.Errorf("could not patch postgres parameters with a pod %s: %v", podName, err)
+		return requiresMasterRestart, fmt.Errorf("could not patch postgres parameters within pod %s: %v", podName, err)
 	}
 
 	return requiresMasterRestart, nil

pkg/cluster/sync_test.go

@@ -256,7 +256,7 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
 	}
 
 	for _, tt := range tests {
-		requireMasterRestart, err := cluster.checkAndSetGlobalPostgreSQLConfiguration(mockPod, tt.patroni, tt.pgParams)
+		requireMasterRestart, err := cluster.checkAndSetGlobalPostgreSQLConfiguration(mockPod, tt.patroni, cluster.Spec.Patroni, tt.pgParams, cluster.Spec.Parameters)
 		assert.NoError(t, err)
 		if requireMasterRestart != tt.restartMaster {
 			t.Errorf("%s - %s: unexpect master restart strategy, got %v, expected %v", testName, tt.subtest, requireMasterRestart, tt.restartMaster)

pkg/generated/clientset/versioned/clientset.go

@@ -28,6 +28,7 @@ import (
 	"fmt"
 
 	acidv1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/acid.zalan.do/v1"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/zalando.org/v1"
 	discovery "k8s.io/client-go/discovery"
 	rest "k8s.io/client-go/rest"
 	flowcontrol "k8s.io/client-go/util/flowcontrol"
@@ -36,6 +37,7 @@ import (
 type Interface interface {
 	Discovery() discovery.DiscoveryInterface
 	AcidV1() acidv1.AcidV1Interface
+	ZalandoV1() zalandov1.ZalandoV1Interface
 }
 
 // Clientset contains the clients for groups. Each group has exactly one
@@ -43,6 +45,7 @@ type Interface interface {
 type Clientset struct {
 	*discovery.DiscoveryClient
 	acidV1    *acidv1.AcidV1Client
+	zalandoV1 *zalandov1.ZalandoV1Client
 }
 
 // AcidV1 retrieves the AcidV1Client
@@ -50,6 +53,11 @@ func (c *Clientset) AcidV1() acidv1.AcidV1Interface {
 	return c.acidV1
 }
 
+// ZalandoV1 retrieves the ZalandoV1Client
+func (c *Clientset) ZalandoV1() zalandov1.ZalandoV1Interface {
+	return c.zalandoV1
+}
+
 // Discovery retrieves the DiscoveryClient
 func (c *Clientset) Discovery() discovery.DiscoveryInterface {
 	if c == nil {
@@ -75,6 +83,10 @@ func NewForConfig(c *rest.Config) (*Clientset, error) {
 	if err != nil {
 		return nil, err
 	}
+	cs.zalandoV1, err = zalandov1.NewForConfig(&configShallowCopy)
+	if err != nil {
+		return nil, err
+	}
 
 	cs.DiscoveryClient, err = discovery.NewDiscoveryClientForConfig(&configShallowCopy)
 	if err != nil {
@@ -88,6 +100,7 @@ func NewForConfig(c *rest.Config) (*Clientset, error) {
 func NewForConfigOrDie(c *rest.Config) *Clientset {
 	var cs Clientset
 	cs.acidV1 = acidv1.NewForConfigOrDie(c)
+	cs.zalandoV1 = zalandov1.NewForConfigOrDie(c)
 
 	cs.DiscoveryClient = discovery.NewDiscoveryClientForConfigOrDie(c)
 	return &cs
@@ -97,6 +110,7 @@ func NewForConfigOrDie(c *rest.Config) *Clientset {
 func New(c rest.Interface) *Clientset {
 	var cs Clientset
 	cs.acidV1 = acidv1.New(c)
+	cs.zalandoV1 = zalandov1.New(c)
 
 	cs.DiscoveryClient = discovery.NewDiscoveryClient(c)
 	return &cs

pkg/generated/clientset/versioned/fake/clientset_generated.go

@@ -28,6 +28,8 @@ import (
 	clientset "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned"
 	acidv1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/acid.zalan.do/v1"
 	fakeacidv1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/acid.zalan.do/v1/fake"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/zalando.org/v1"
+	fakezalandov1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/zalando.org/v1/fake"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/watch"
 	"k8s.io/client-go/discovery"
@@ -89,3 +91,8 @@ var (
 func (c *Clientset) AcidV1() acidv1.AcidV1Interface {
 	return &fakeacidv1.FakeAcidV1{Fake: &c.Fake}
 }
+
+// ZalandoV1 retrieves the ZalandoV1Client
+func (c *Clientset) ZalandoV1() zalandov1.ZalandoV1Interface {
+	return &fakezalandov1.FakeZalandoV1{Fake: &c.Fake}
+}

pkg/generated/clientset/versioned/fake/register.go

@@ -26,6 +26,7 @@ package fake
 
 import (
 	acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
@@ -38,6 +39,7 @@ var codecs = serializer.NewCodecFactory(scheme)
 
 var localSchemeBuilder = runtime.SchemeBuilder{
 	acidv1.AddToScheme,
+	zalandov1.AddToScheme,
 }
 
 // AddToScheme adds all types of this clientset into the given scheme. This allows composition

pkg/generated/clientset/versioned/scheme/register.go

@@ -26,6 +26,7 @@ package scheme
 
 import (
 	acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
@@ -38,6 +39,7 @@ var Codecs = serializer.NewCodecFactory(Scheme)
 var ParameterCodec = runtime.NewParameterCodec(Scheme)
 var localSchemeBuilder = runtime.SchemeBuilder{
 	acidv1.AddToScheme,
+	zalandov1.AddToScheme,
 }
 
 // AddToScheme adds all types of this clientset into the given scheme. This allows composition

pkg/generated/clientset/versioned/typed/zalando.org/v1/doc.go

@@ -0,0 +1,26 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+// This package has the automatically generated typed clients.
+package v1

pkg/generated/clientset/versioned/typed/zalando.org/v1/fabriceventstream.go

@@ -0,0 +1,184 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	"context"
+	"time"
+
+	v1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	scheme "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/scheme"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	types "k8s.io/apimachinery/pkg/types"
+	watch "k8s.io/apimachinery/pkg/watch"
+	rest "k8s.io/client-go/rest"
+)
+
+// FabricEventStreamsGetter has a method to return a FabricEventStreamInterface.
+// A group's client should implement this interface.
+type FabricEventStreamsGetter interface {
+	FabricEventStreams(namespace string) FabricEventStreamInterface
+}
+
+// FabricEventStreamInterface has methods to work with FabricEventStream resources.
+type FabricEventStreamInterface interface {
+	Create(ctx context.Context, fabricEventStream *v1.FabricEventStream, opts metav1.CreateOptions) (*v1.FabricEventStream, error)
+	Update(ctx context.Context, fabricEventStream *v1.FabricEventStream, opts metav1.UpdateOptions) (*v1.FabricEventStream, error)
+	Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error
+	DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error
+	Get(ctx context.Context, name string, opts metav1.GetOptions) (*v1.FabricEventStream, error)
+	List(ctx context.Context, opts metav1.ListOptions) (*v1.FabricEventStreamList, error)
+	Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error)
+	Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.FabricEventStream, err error)
+	FabricEventStreamExpansion
+}
+
+// fabricEventStreams implements FabricEventStreamInterface
+type fabricEventStreams struct {
+	client rest.Interface
+	ns     string
+}
+
+// newFabricEventStreams returns a FabricEventStreams
+func newFabricEventStreams(c *ZalandoV1Client, namespace string) *fabricEventStreams {
+	return &fabricEventStreams{
+		client: c.RESTClient(),
+		ns:     namespace,
+	}
+}
+
+// Get takes name of the fabricEventStream, and returns the corresponding fabricEventStream object, and an error if there is any.
+func (c *fabricEventStreams) Get(ctx context.Context, name string, options metav1.GetOptions) (result *v1.FabricEventStream, err error) {
+	result = &v1.FabricEventStream{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		Name(name).
+		VersionedParams(&options, scheme.ParameterCodec).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// List takes label and field selectors, and returns the list of FabricEventStreams that match those selectors.
+func (c *fabricEventStreams) List(ctx context.Context, opts metav1.ListOptions) (result *v1.FabricEventStreamList, err error) {
+	var timeout time.Duration
+	if opts.TimeoutSeconds != nil {
+		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
+	}
+	result = &v1.FabricEventStreamList{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Watch returns a watch.Interface that watches the requested fabricEventStreams.
+func (c *fabricEventStreams) Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
+	var timeout time.Duration
+	if opts.TimeoutSeconds != nil {
+		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
+	}
+	opts.Watch = true
+	return c.client.Get().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Watch(ctx)
+}
+
+// Create takes the representation of a fabricEventStream and creates it.  Returns the server's representation of the fabricEventStream, and an error, if there is any.
+func (c *fabricEventStreams) Create(ctx context.Context, fabricEventStream *v1.FabricEventStream, opts metav1.CreateOptions) (result *v1.FabricEventStream, err error) {
+	result = &v1.FabricEventStream{}
+	err = c.client.Post().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(fabricEventStream).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Update takes the representation of a fabricEventStream and updates it. Returns the server's representation of the fabricEventStream, and an error, if there is any.
+func (c *fabricEventStreams) Update(ctx context.Context, fabricEventStream *v1.FabricEventStream, opts metav1.UpdateOptions) (result *v1.FabricEventStream, err error) {
+	result = &v1.FabricEventStream{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		Name(fabricEventStream.Name).
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(fabricEventStream).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Delete takes name of the fabricEventStream and deletes it. Returns an error if one occurs.
+func (c *fabricEventStreams) Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error {
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		Name(name).
+		Body(&opts).
+		Do(ctx).
+		Error()
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *fabricEventStreams) DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error {
+	var timeout time.Duration
+	if listOpts.TimeoutSeconds != nil {
+		timeout = time.Duration(*listOpts.TimeoutSeconds) * time.Second
+	}
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		VersionedParams(&listOpts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Body(&opts).
+		Do(ctx).
+		Error()
+}
+
+// Patch applies the patch and returns the patched fabricEventStream.
+func (c *fabricEventStreams) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.FabricEventStream, err error) {
+	result = &v1.FabricEventStream{}
+	err = c.client.Patch(pt).
+		Namespace(c.ns).
+		Resource("fabriceventstreams").
+		Name(name).
+		SubResource(subresources...).
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(data).
+		Do(ctx).
+		Into(result)
+	return
+}

pkg/generated/clientset/versioned/typed/zalando.org/v1/fake/doc.go

@@ -0,0 +1,26 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+// Package fake has the automatically generated clients.
+package fake

pkg/generated/clientset/versioned/typed/zalando.org/v1/fake/fake_fabriceventstream.go

@@ -0,0 +1,136 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package fake
+
+import (
+	"context"
+
+	zalandoorgv1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	labels "k8s.io/apimachinery/pkg/labels"
+	schema "k8s.io/apimachinery/pkg/runtime/schema"
+	types "k8s.io/apimachinery/pkg/types"
+	watch "k8s.io/apimachinery/pkg/watch"
+	testing "k8s.io/client-go/testing"
+)
+
+// FakeFabricEventStreams implements FabricEventStreamInterface
+type FakeFabricEventStreams struct {
+	Fake *FakeZalandoV1
+	ns   string
+}
+
+var fabriceventstreamsResource = schema.GroupVersionResource{Group: "zalando.org", Version: "v1", Resource: "fabriceventstreams"}
+
+var fabriceventstreamsKind = schema.GroupVersionKind{Group: "zalando.org", Version: "v1", Kind: "FabricEventStream"}
+
+// Get takes name of the fabricEventStream, and returns the corresponding fabricEventStream object, and an error if there is any.
+func (c *FakeFabricEventStreams) Get(ctx context.Context, name string, options v1.GetOptions) (result *zalandoorgv1.FabricEventStream, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewGetAction(fabriceventstreamsResource, c.ns, name), &zalandoorgv1.FabricEventStream{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*zalandoorgv1.FabricEventStream), err
+}
+
+// List takes label and field selectors, and returns the list of FabricEventStreams that match those selectors.
+func (c *FakeFabricEventStreams) List(ctx context.Context, opts v1.ListOptions) (result *zalandoorgv1.FabricEventStreamList, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewListAction(fabriceventstreamsResource, fabriceventstreamsKind, c.ns, opts), &zalandoorgv1.FabricEventStreamList{})
+
+	if obj == nil {
+		return nil, err
+	}
+
+	label, _, _ := testing.ExtractFromListOptions(opts)
+	if label == nil {
+		label = labels.Everything()
+	}
+	list := &zalandoorgv1.FabricEventStreamList{ListMeta: obj.(*zalandoorgv1.FabricEventStreamList).ListMeta}
+	for _, item := range obj.(*zalandoorgv1.FabricEventStreamList).Items {
+		if label.Matches(labels.Set(item.Labels)) {
+			list.Items = append(list.Items, item)
+		}
+	}
+	return list, err
+}
+
+// Watch returns a watch.Interface that watches the requested fabricEventStreams.
+func (c *FakeFabricEventStreams) Watch(ctx context.Context, opts v1.ListOptions) (watch.Interface, error) {
+	return c.Fake.
+		InvokesWatch(testing.NewWatchAction(fabriceventstreamsResource, c.ns, opts))
+
+}
+
+// Create takes the representation of a fabricEventStream and creates it.  Returns the server's representation of the fabricEventStream, and an error, if there is any.
+func (c *FakeFabricEventStreams) Create(ctx context.Context, fabricEventStream *zalandoorgv1.FabricEventStream, opts v1.CreateOptions) (result *zalandoorgv1.FabricEventStream, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewCreateAction(fabriceventstreamsResource, c.ns, fabricEventStream), &zalandoorgv1.FabricEventStream{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*zalandoorgv1.FabricEventStream), err
+}
+
+// Update takes the representation of a fabricEventStream and updates it. Returns the server's representation of the fabricEventStream, and an error, if there is any.
+func (c *FakeFabricEventStreams) Update(ctx context.Context, fabricEventStream *zalandoorgv1.FabricEventStream, opts v1.UpdateOptions) (result *zalandoorgv1.FabricEventStream, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewUpdateAction(fabriceventstreamsResource, c.ns, fabricEventStream), &zalandoorgv1.FabricEventStream{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*zalandoorgv1.FabricEventStream), err
+}
+
+// Delete takes name of the fabricEventStream and deletes it. Returns an error if one occurs.
+func (c *FakeFabricEventStreams) Delete(ctx context.Context, name string, opts v1.DeleteOptions) error {
+	_, err := c.Fake.
+		Invokes(testing.NewDeleteAction(fabriceventstreamsResource, c.ns, name), &zalandoorgv1.FabricEventStream{})
+
+	return err
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *FakeFabricEventStreams) DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error {
+	action := testing.NewDeleteCollectionAction(fabriceventstreamsResource, c.ns, listOpts)
+
+	_, err := c.Fake.Invokes(action, &zalandoorgv1.FabricEventStreamList{})
+	return err
+}
+
+// Patch applies the patch and returns the patched fabricEventStream.
+func (c *FakeFabricEventStreams) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *zalandoorgv1.FabricEventStream, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewPatchSubresourceAction(fabriceventstreamsResource, c.ns, name, pt, data, subresources...), &zalandoorgv1.FabricEventStream{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*zalandoorgv1.FabricEventStream), err
+}

pkg/generated/clientset/versioned/typed/zalando.org/v1/fake/fake_zalando.org_client.go

@@ -0,0 +1,46 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package fake
+
+import (
+	v1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/zalando.org/v1"
+	rest "k8s.io/client-go/rest"
+	testing "k8s.io/client-go/testing"
+)
+
+type FakeZalandoV1 struct {
+	*testing.Fake
+}
+
+func (c *FakeZalandoV1) FabricEventStreams(namespace string) v1.FabricEventStreamInterface {
+	return &FakeFabricEventStreams{c, namespace}
+}
+
+// RESTClient returns a RESTClient that is used to communicate
+// with API server by this client implementation.
+func (c *FakeZalandoV1) RESTClient() rest.Interface {
+	var ret *rest.RESTClient
+	return ret
+}

pkg/generated/clientset/versioned/typed/zalando.org/v1/generated_expansion.go

@@ -0,0 +1,27 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1
+
+type FabricEventStreamExpansion interface{}

pkg/generated/clientset/versioned/typed/zalando.org/v1/zalando.org_client.go

@@ -0,0 +1,95 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	v1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	"github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/scheme"
+	rest "k8s.io/client-go/rest"
+)
+
+type ZalandoV1Interface interface {
+	RESTClient() rest.Interface
+	FabricEventStreamsGetter
+}
+
+// ZalandoV1Client is used to interact with features provided by the zalando.org group.
+type ZalandoV1Client struct {
+	restClient rest.Interface
+}
+
+func (c *ZalandoV1Client) FabricEventStreams(namespace string) FabricEventStreamInterface {
+	return newFabricEventStreams(c, namespace)
+}
+
+// NewForConfig creates a new ZalandoV1Client for the given config.
+func NewForConfig(c *rest.Config) (*ZalandoV1Client, error) {
+	config := *c
+	if err := setConfigDefaults(&config); err != nil {
+		return nil, err
+	}
+	client, err := rest.RESTClientFor(&config)
+	if err != nil {
+		return nil, err
+	}
+	return &ZalandoV1Client{client}, nil
+}
+
+// NewForConfigOrDie creates a new ZalandoV1Client for the given config and
+// panics if there is an error in the config.
+func NewForConfigOrDie(c *rest.Config) *ZalandoV1Client {
+	client, err := NewForConfig(c)
+	if err != nil {
+		panic(err)
+	}
+	return client
+}
+
+// New creates a new ZalandoV1Client for the given RESTClient.
+func New(c rest.Interface) *ZalandoV1Client {
+	return &ZalandoV1Client{c}
+}
+
+func setConfigDefaults(config *rest.Config) error {
+	gv := v1.SchemeGroupVersion
+	config.GroupVersion = &gv
+	config.APIPath = "/apis"
+	config.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
+
+	if config.UserAgent == "" {
+		config.UserAgent = rest.DefaultKubernetesUserAgent()
+	}
+
+	return nil
+}
+
+// RESTClient returns a RESTClient that is used to communicate
+// with API server by this client implementation.
+func (c *ZalandoV1Client) RESTClient() rest.Interface {
+	if c == nil {
+		return nil
+	}
+	return c.restClient
+}

pkg/generated/informers/externalversions/factory.go

@@ -32,6 +32,7 @@ import (
 	versioned "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned"
 	acidzalando "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/acid.zalan.do"
 	internalinterfaces "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/internalinterfaces"
+	zalandoorg "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/zalando.org"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
@@ -179,8 +180,13 @@ type SharedInformerFactory interface {
 	WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool
 
 	Acid() acidzalando.Interface
+	Zalando() zalandoorg.Interface
 }
 
 func (f *sharedInformerFactory) Acid() acidzalando.Interface {
 	return acidzalando.New(f, f.namespace, f.tweakListOptions)
 }
+
+func (f *sharedInformerFactory) Zalando() zalandoorg.Interface {
+	return zalandoorg.New(f, f.namespace, f.tweakListOptions)
+}

pkg/generated/informers/externalversions/generic.go

@@ -28,6 +28,7 @@ import (
 	"fmt"
 
 	v1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
+	zalandoorgv1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	cache "k8s.io/client-go/tools/cache"
 )
@@ -64,6 +65,10 @@ func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource
 	case v1.SchemeGroupVersion.WithResource("postgresqls"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Acid().V1().Postgresqls().Informer()}, nil
 
+		// Group=zalando.org, Version=v1
+	case zalandoorgv1.SchemeGroupVersion.WithResource("fabriceventstreams"):
+		return &genericInformer{resource: resource.GroupResource(), informer: f.Zalando().V1().FabricEventStreams().Informer()}, nil
+
 	}
 
 	return nil, fmt.Errorf("no informer found for %v", resource)

pkg/generated/informers/externalversions/zalando.org/interface.go

@@ -0,0 +1,52 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package zalando
+
+import (
+	internalinterfaces "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/internalinterfaces"
+	v1 "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/zalando.org/v1"
+)
+
+// Interface provides access to each of this group's versions.
+type Interface interface {
+	// V1 provides access to shared informers for resources in V1.
+	V1() v1.Interface
+}
+
+type group struct {
+	factory          internalinterfaces.SharedInformerFactory
+	namespace        string
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+}
+
+// New returns a new Interface.
+func New(f internalinterfaces.SharedInformerFactory, namespace string, tweakListOptions internalinterfaces.TweakListOptionsFunc) Interface {
+	return &group{factory: f, namespace: namespace, tweakListOptions: tweakListOptions}
+}
+
+// V1 returns a new v1.Interface.
+func (g *group) V1() v1.Interface {
+	return v1.New(g.factory, g.namespace, g.tweakListOptions)
+}

pkg/generated/informers/externalversions/zalando.org/v1/fabriceventstream.go

@@ -0,0 +1,96 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	"context"
+	time "time"
+
+	zalandoorgv1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	versioned "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned"
+	internalinterfaces "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/internalinterfaces"
+	v1 "github.com/zalando/postgres-operator/pkg/generated/listers/zalando.org/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	watch "k8s.io/apimachinery/pkg/watch"
+	cache "k8s.io/client-go/tools/cache"
+)
+
+// FabricEventStreamInformer provides access to a shared informer and lister for
+// FabricEventStreams.
+type FabricEventStreamInformer interface {
+	Informer() cache.SharedIndexInformer
+	Lister() v1.FabricEventStreamLister
+}
+
+type fabricEventStreamInformer struct {
+	factory          internalinterfaces.SharedInformerFactory
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+	namespace        string
+}
+
+// NewFabricEventStreamInformer constructs a new informer for FabricEventStream type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFabricEventStreamInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
+	return NewFilteredFabricEventStreamInformer(client, namespace, resyncPeriod, indexers, nil)
+}
+
+// NewFilteredFabricEventStreamInformer constructs a new informer for FabricEventStream type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFilteredFabricEventStreamInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
+	return cache.NewSharedIndexInformer(
+		&cache.ListWatch{
+			ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.ZalandoV1().FabricEventStreams(namespace).List(context.TODO(), options)
+			},
+			WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.ZalandoV1().FabricEventStreams(namespace).Watch(context.TODO(), options)
+			},
+		},
+		&zalandoorgv1.FabricEventStream{},
+		resyncPeriod,
+		indexers,
+	)
+}
+
+func (f *fabricEventStreamInformer) defaultInformer(client versioned.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
+	return NewFilteredFabricEventStreamInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+}
+
+func (f *fabricEventStreamInformer) Informer() cache.SharedIndexInformer {
+	return f.factory.InformerFor(&zalandoorgv1.FabricEventStream{}, f.defaultInformer)
+}
+
+func (f *fabricEventStreamInformer) Lister() v1.FabricEventStreamLister {
+	return v1.NewFabricEventStreamLister(f.Informer().GetIndexer())
+}

pkg/generated/informers/externalversions/zalando.org/v1/interface.go

@@ -0,0 +1,51 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	internalinterfaces "github.com/zalando/postgres-operator/pkg/generated/informers/externalversions/internalinterfaces"
+)
+
+// Interface provides access to all the informers in this group version.
+type Interface interface {
+	// FabricEventStreams returns a FabricEventStreamInformer.
+	FabricEventStreams() FabricEventStreamInformer
+}
+
+type version struct {
+	factory          internalinterfaces.SharedInformerFactory
+	namespace        string
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+}
+
+// New returns a new Interface.
+func New(f internalinterfaces.SharedInformerFactory, namespace string, tweakListOptions internalinterfaces.TweakListOptionsFunc) Interface {
+	return &version{factory: f, namespace: namespace, tweakListOptions: tweakListOptions}
+}
+
+// FabricEventStreams returns a FabricEventStreamInformer.
+func (v *version) FabricEventStreams() FabricEventStreamInformer {
+	return &fabricEventStreamInformer{factory: v.factory, namespace: v.namespace, tweakListOptions: v.tweakListOptions}
+}

pkg/generated/listers/zalando.org/v1/expansion_generated.go

@@ -0,0 +1,33 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by lister-gen. DO NOT EDIT.
+
+package v1
+
+// FabricEventStreamListerExpansion allows custom methods to be added to
+// FabricEventStreamLister.
+type FabricEventStreamListerExpansion interface{}
+
+// FabricEventStreamNamespaceListerExpansion allows custom methods to be added to
+// FabricEventStreamNamespaceLister.
+type FabricEventStreamNamespaceListerExpansion interface{}

pkg/generated/listers/zalando.org/v1/fabriceventstream.go

@@ -0,0 +1,105 @@
+/*
+Copyright 2022 Compose, Zalando SE
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Code generated by lister-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	v1 "github.com/zalando/postgres-operator/pkg/apis/zalando.org/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/tools/cache"
+)
+
+// FabricEventStreamLister helps list FabricEventStreams.
+// All objects returned here must be treated as read-only.
+type FabricEventStreamLister interface {
+	// List lists all FabricEventStreams in the indexer.
+	// Objects returned here must be treated as read-only.
+	List(selector labels.Selector) (ret []*v1.FabricEventStream, err error)
+	// FabricEventStreams returns an object that can list and get FabricEventStreams.
+	FabricEventStreams(namespace string) FabricEventStreamNamespaceLister
+	FabricEventStreamListerExpansion
+}
+
+// fabricEventStreamLister implements the FabricEventStreamLister interface.
+type fabricEventStreamLister struct {
+	indexer cache.Indexer
+}
+
+// NewFabricEventStreamLister returns a new FabricEventStreamLister.
+func NewFabricEventStreamLister(indexer cache.Indexer) FabricEventStreamLister {
+	return &fabricEventStreamLister{indexer: indexer}
+}
+
+// List lists all FabricEventStreams in the indexer.
+func (s *fabricEventStreamLister) List(selector labels.Selector) (ret []*v1.FabricEventStream, err error) {
+	err = cache.ListAll(s.indexer, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1.FabricEventStream))
+	})
+	return ret, err
+}
+
+// FabricEventStreams returns an object that can list and get FabricEventStreams.
+func (s *fabricEventStreamLister) FabricEventStreams(namespace string) FabricEventStreamNamespaceLister {
+	return fabricEventStreamNamespaceLister{indexer: s.indexer, namespace: namespace}
+}
+
+// FabricEventStreamNamespaceLister helps list and get FabricEventStreams.
+// All objects returned here must be treated as read-only.
+type FabricEventStreamNamespaceLister interface {
+	// List lists all FabricEventStreams in the indexer for a given namespace.
+	// Objects returned here must be treated as read-only.
+	List(selector labels.Selector) (ret []*v1.FabricEventStream, err error)
+	// Get retrieves the FabricEventStream from the indexer for a given namespace and name.
+	// Objects returned here must be treated as read-only.
+	Get(name string) (*v1.FabricEventStream, error)
+	FabricEventStreamNamespaceListerExpansion
+}
+
+// fabricEventStreamNamespaceLister implements the FabricEventStreamNamespaceLister
+// interface.
+type fabricEventStreamNamespaceLister struct {
+	indexer   cache.Indexer
+	namespace string
+}
+
+// List lists all FabricEventStreams in the indexer for a given namespace.
+func (s fabricEventStreamNamespaceLister) List(selector labels.Selector) (ret []*v1.FabricEventStream, err error) {
+	err = cache.ListAllByNamespace(s.indexer, s.namespace, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1.FabricEventStream))
+	})
+	return ret, err
+}
+
+// Get retrieves the FabricEventStream from the indexer for a given namespace and name.
+func (s fabricEventStreamNamespaceLister) Get(name string) (*v1.FabricEventStream, error) {
+	obj, exists, err := s.indexer.GetByKey(s.namespace + "/" + name)
+	if err != nil {
+		return nil, err
+	}
+	if !exists {
+		return nil, errors.NewNotFound(v1.Resource("fabriceventstream"), name)
+	}
+	return obj.(*v1.FabricEventStream), nil
+}

pkg/util/constants/streams.go

@@ -0,0 +1,14 @@
+package constants
+
+// PostgreSQL specific constants
+const (
+	EventStreamCRDApiVersion     = "zalando.org/v1"
+	EventStreamCRDKind           = "FabricEventStream"
+	EventStreamCRDName           = "fabriceventstreams.zalando.org"
+	EventStreamSourcePGType      = "PostgresLogicalReplication"
+	EventStreamSourceSlotPrefix  = "fes"
+	EventStreamSourcePluginType  = "pgoutput"
+	EventStreamSourceAuthType    = "DatabaseAuthenticationSecret"
+	EventStreamFlowPgGenericType = "PostgresWalToGenericNakadiEvent"
+	EventStreamSinkNakadiType    = "Nakadi"
+)

pkg/util/k8sutil/k8sutil.go

@@ -12,8 +12,9 @@ import (
 	clientbatchv1beta1 "k8s.io/client-go/kubernetes/typed/batch/v1beta1"
 
 	apiacidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
-	acidv1client "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned"
+	zalandoclient "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned"
 	acidv1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/acid.zalan.do/v1"
+	zalandov1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/zalando.org/v1"
 	"github.com/zalando/postgres-operator/pkg/spec"
 	apiappsv1 "k8s.io/api/apps/v1"
 	v1 "k8s.io/api/core/v1"
@@ -58,9 +59,11 @@ type KubernetesClient struct {
 	acidv1.OperatorConfigurationsGetter
 	acidv1.PostgresTeamsGetter
 	acidv1.PostgresqlsGetter
+	zalandov1.FabricEventStreamsGetter
 
 	RESTClient         rest.Interface
-	AcidV1ClientSet *acidv1client.Clientset
+	AcidV1ClientSet    *zalandoclient.Clientset
+	Zalandov1ClientSet *zalandoclient.Clientset
 }
 
 type mockSecret struct {
@@ -158,14 +161,19 @@ func NewFromConfig(cfg *rest.Config) (KubernetesClient, error) {
 
 	kubeClient.CustomResourceDefinitionsGetter = apiextClient.ApiextensionsV1()
 
-	kubeClient.AcidV1ClientSet = acidv1client.NewForConfigOrDie(cfg)
+	kubeClient.AcidV1ClientSet = zalandoclient.NewForConfigOrDie(cfg)
 	if err != nil {
 		return kubeClient, fmt.Errorf("could not create acid.zalan.do clientset: %v", err)
 	}
+	kubeClient.Zalandov1ClientSet = zalandoclient.NewForConfigOrDie(cfg)
+	if err != nil {
+		return kubeClient, fmt.Errorf("could not create zalando.org clientset: %v", err)
+	}
 
 	kubeClient.OperatorConfigurationsGetter = kubeClient.AcidV1ClientSet.AcidV1()
 	kubeClient.PostgresTeamsGetter = kubeClient.AcidV1ClientSet.AcidV1()
 	kubeClient.PostgresqlsGetter = kubeClient.AcidV1ClientSet.AcidV1()
+	kubeClient.FabricEventStreamsGetter = kubeClient.Zalandov1ClientSet.ZalandoV1()
 
 	return kubeClient, nil
 }

pkg/util/patroni/patroni_test.go

@@ -185,7 +185,7 @@ func TestGetConfig(t *testing.T) {
 		Slots: map[string]map[string]string{
 			"cdc": {
 				"database": "foo",
-				"plugin":   "wal2json",
+				"plugin":   "pgoutput",
 				"type":     "logical",
 			},
 		},
@@ -218,7 +218,7 @@ func TestGetConfig(t *testing.T) {
 		"wal_log_hints":                   "on",
 	}
 
-	configJson := `{"loop_wait": 10, "maximum_lag_on_failover": 33554432, "postgresql": {"parameters": {"archive_mode": "on", "archive_timeout": "1800s", "autovacuum_analyze_scale_factor": 0.02, "autovacuum_max_workers": 5, "autovacuum_vacuum_scale_factor": 0.05, "checkpoint_completion_target": 0.9, "hot_standby": "on", "log_autovacuum_min_duration": 0, "log_checkpoints": "on", "log_connections": "on", "log_disconnections": "on", "log_line_prefix": "%t [%p]: [%l-1] %c %x %d %u %a %h ", "log_lock_waits": "on", "log_min_duration_statement": 500, "log_statement": "ddl", "log_temp_files": 0, "max_connections": 100, "max_replication_slots": 10, "max_wal_senders": 10, "tcp_keepalives_idle": 900, "tcp_keepalives_interval": 100, "track_functions": "all", "wal_level": "hot_standby", "wal_log_hints": "on"}, "use_pg_rewind": true, "use_slots": true}, "retry_timeout": 10, "slots": {"cdc": {"database": "foo", "plugin": "wal2json", "type": "logical"}}, "ttl": 30}`
+	configJson := `{"loop_wait": 10, "maximum_lag_on_failover": 33554432, "postgresql": {"parameters": {"archive_mode": "on", "archive_timeout": "1800s", "autovacuum_analyze_scale_factor": 0.02, "autovacuum_max_workers": 5, "autovacuum_vacuum_scale_factor": 0.05, "checkpoint_completion_target": 0.9, "hot_standby": "on", "log_autovacuum_min_duration": 0, "log_checkpoints": "on", "log_connections": "on", "log_disconnections": "on", "log_line_prefix": "%t [%p]: [%l-1] %c %x %d %u %a %h ", "log_lock_waits": "on", "log_min_duration_statement": 500, "log_statement": "ddl", "log_temp_files": 0, "max_connections": 100, "max_replication_slots": 10, "max_wal_senders": 10, "tcp_keepalives_idle": 900, "tcp_keepalives_interval": 100, "track_functions": "all", "wal_level": "hot_standby", "wal_log_hints": "on"}, "use_pg_rewind": true, "use_slots": true}, "retry_timeout": 10, "slots": {"cdc": {"database": "foo", "plugin": "pgoutput", "type": "logical"}}, "ttl": 30}`
 	r := ioutil.NopCloser(bytes.NewReader([]byte(configJson)))
 
 	response := http.Response{
@@ -253,7 +253,7 @@ func TestSetPostgresParameters(t *testing.T) {
 		"wal_level":       "logical",
 	}
 
-	configJson := `{"loop_wait": 10, "maximum_lag_on_failover": 33554432, "postgresql": {"parameters": {"archive_mode": "on", "archive_timeout": "1800s", "autovacuum_analyze_scale_factor": 0.02, "autovacuum_max_workers": 5, "autovacuum_vacuum_scale_factor": 0.05, "checkpoint_completion_target": 0.9, "hot_standby": "on", "log_autovacuum_min_duration": 0, "log_checkpoints": "on", "log_connections": "on", "log_disconnections": "on", "log_line_prefix": "%t [%p]: [%l-1] %c %x %d %u %a %h ", "log_lock_waits": "on", "log_min_duration_statement": 500, "log_statement": "ddl", "log_temp_files": 0, "max_connections": 50, "max_replication_slots": 10, "max_wal_senders": 10, "tcp_keepalives_idle": 900, "tcp_keepalives_interval": 100, "track_functions": "all", "wal_level": "logical", "wal_log_hints": "on"}, "use_pg_rewind": true, "use_slots": true}, "retry_timeout": 10, "slots": {"cdc": {"database": "foo", "plugin": "wal2json", "type": "logical"}}, "ttl": 30}`
+	configJson := `{"loop_wait": 10, "maximum_lag_on_failover": 33554432, "postgresql": {"parameters": {"archive_mode": "on", "archive_timeout": "1800s", "autovacuum_analyze_scale_factor": 0.02, "autovacuum_max_workers": 5, "autovacuum_vacuum_scale_factor": 0.05, "checkpoint_completion_target": 0.9, "hot_standby": "on", "log_autovacuum_min_duration": 0, "log_checkpoints": "on", "log_connections": "on", "log_disconnections": "on", "log_line_prefix": "%t [%p]: [%l-1] %c %x %d %u %a %h ", "log_lock_waits": "on", "log_min_duration_statement": 500, "log_statement": "ddl", "log_temp_files": 0, "max_connections": 50, "max_replication_slots": 10, "max_wal_senders": 10, "tcp_keepalives_idle": 900, "tcp_keepalives_interval": 100, "track_functions": "all", "wal_level": "logical", "wal_log_hints": "on"}, "use_pg_rewind": true, "use_slots": true}, "retry_timeout": 10, "slots": {"cdc": {"database": "foo", "plugin": "pgoutput", "type": "logical"}}, "ttl": 30}`
 	r := ioutil.NopCloser(bytes.NewReader([]byte(configJson)))
 
 	response := http.Response{