Passing endpoint, access and secret key to logical-backup container (#628)

* Added possibility to add custom annotations to LoadBalancer service.

* Added parameters for custom endpoint, access and secret key for logical backup.

* Modified dump.sh so it knows how to handle new features. Configurable S3 SSE

charts/postgres-operator/values-crd.yaml

@@ -184,12 +184,20 @@ configAwsOrGcp:
 
 # configure K8s cron job managed by the operator
 configLogicalBackup:
-  # backup schedule in the cron format
-  logical_backup_schedule: "30 00 * * *"
   # image for pods of the logical backup job (example runs pg_dumpall)
   logical_backup_docker_image: "registry.opensource.zalan.do/acid/logical-backup"
+  # S3 Access Key ID  
+  logical_backup_s3_access_key_id: ""
   # S3 bucket to store backup results
   logical_backup_s3_bucket: "my-bucket-url"
+  # S3 endpoint url when not using AWS
+  logical_backup_s3_endpoint: ""
+  # S3 Secret Access Key
+  logical_backup_s3_secret_access_key: ""
+  # S3 server side encription 
+  logical_backup_s3_sse: "AES256"
+  # backup schedule in the cron format
+  logical_backup_schedule: "30 00 * * *"
 
 # automate creation of human users with teams API service
 configTeamsApi:

charts/postgres-operator/values.yaml

@@ -178,12 +178,20 @@ configAwsOrGcp:
 
 # configure K8s cron job managed by the operator
 configLogicalBackup:
-  # backup schedule in the cron format
-  logical_backup_schedule: "30 00 * * *"
   # image for pods of the logical backup job (example runs pg_dumpall)
   logical_backup_docker_image: "registry.opensource.zalan.do/acid/logical-backup"
+  # S3 Access Key ID  
+  logical_backup_s3_access_key_id: ""
   # S3 bucket to store backup results
   logical_backup_s3_bucket: "my-bucket-url"
+  # S3 endpoint url when not using AWS
+  logical_backup_s3_endpoint: ""
+  # S3 Secret Access Key
+  logical_backup_s3_secret_access_key: ""
+  # S3 server side encription 
+  logical_backup_s3_sse: "AES256"
+  # backup schedule in the cron format
+  logical_backup_schedule: "30 00 * * *"
 
 # automate creation of human users with teams API service
 configTeamsApi:

docker/logical-backup/dump.sh

@@ -38,11 +38,13 @@ function aws_upload {
     # NB: $LOGICAL_BACKUP_S3_BUCKET_SCOPE_SUFFIX already contains the leading "/" when set by the Postgres Operator
     PATH_TO_BACKUP=s3://$LOGICAL_BACKUP_S3_BUCKET"/spilo/"$SCOPE$LOGICAL_BACKUP_S3_BUCKET_SCOPE_SUFFIX"/logical_backups/"$(date +%s).sql.gz
 
-    if [ -z "$EXPECTED_SIZE" ]; then
-        aws s3 cp - "$PATH_TO_BACKUP" --debug --sse="AES256"
-    else
-        aws s3 cp - "$PATH_TO_BACKUP" --debug --expected-size "$EXPECTED_SIZE" --sse="AES256"
-    fi;
+    args=()
+
+    [[ ! -z "$EXPECTED_SIZE" ]] && args+=("--expected-size=$EXPECTED_SIZE")
+    [[ ! -z "$LOGICAL_BACKUP_S3_ENDPOINT" ]] && args+=("--endpoint-url=\"$LOGICAL_BACKUP_S3_ENDPOINT\"")
+    [[ ! "$LOGICAL_BACKUP_S3_SSE" == "" ]] && args+=("--sse=\"$LOGICAL_BACKUP_S3_SSE\"")
+
+    aws s3 cp - "$PATH_TO_BACKUP" "${args[@]//\'/}" --debug
 }
 
 function get_pods {

docs/reference/operator_parameters.md

@@ -441,6 +441,19 @@ grouped under the `logical_backup` key.
   S3 bucket to store backup results. The bucket has to be present and
   accessible by Postgres pods. Default: empty.
 
+* **logical_backup_s3_endpoint**
+  When using non-AWS S3 storage, endpoint can be set as a ENV variable.
+
+* **logical_backup_s3_sse**
+  Specify server side encription that S3 storage is using. If empty string
+  is specified, no argument will be passed to `aws s3` command. Default: "AES256".
+
+* **logical_backup_s3_access_key_id**
+  When set, value will be in AWS_ACCESS_KEY_ID env variable. The Default is empty.
+
+* **logical_backup_s3_secret_access_key**
+  When set, value will be in AWS_SECRET_ACCESS_KEY env variable. The Default is empty.
+
 ## Debugging the operator
 
 Options to aid debugging of the operator itself. Grouped under the `debug` key.

manifests/configmap.yaml

@@ -35,7 +35,11 @@ data:
   # kube_iam_role: ""
   # log_s3_bucket: ""
   # logical_backup_docker_image: "registry.opensource.zalan.do/acid/logical-backup"
+  # logical_backup_s3_access_key_id: ""
   # logical_backup_s3_bucket: "my-bucket-url"
+  # logical_backup_s3_endpoint: ""
+  # logical_backup_s3_secret_access_key: ""
+  # logical_backup_s3_sse: "AES256"
   # logical_backup_schedule: "30 00 * * *"
   master_dns_name_format: "{cluster}.{team}.staging.{hostedzone}"
   # master_pod_move_timeout: 10m

manifests/postgresql-operator-default-configuration.yaml

@@ -74,9 +74,14 @@ configuration:
     # log_s3_bucket: ""
     # wal_s3_bucket: ""
   logical_backup:
-    logical_backup_schedule: "30 00 * * *"
+    log_s3_bucket: ""
     logical_backup_docker_image: "registry.opensource.zalan.do/acid/logical-backup"
+    logical_backup_s3_access_key_id: ""
     logical_backup_s3_bucket: "my-bucket-url"
+    logical_backup_s3_endpoint: ""
+    logical_backup_s3_secret_access_key: ""
+    logical_backup_s3_sse: "AES256"
+    logical_backup_schedule: "30 00 * * *"
   debug:
     debug_logging: true
     enable_database_access: true

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

@@ -184,8 +184,13 @@ type OperatorConfigurationUsers struct {
 //Duration shortens this frequently used name
 type Duration time.Duration
 
+// OperatorLogicalBackupConfiguration defines configration for logical backup
 type OperatorLogicalBackupConfiguration struct {
 	Schedule          string `json:"logical_backup_schedule,omitempty"`
 	DockerImage       string `json:"logical_backup_docker_image,omitempty"`
 	S3Bucket          string `json:"logical_backup_s3_bucket,omitempty"`
+	S3Endpoint        string `json:"logical_backup_s3_endpoint,omitempty"`
+	S3AccessKeyID     string `json:"logical_backup_s3_access_key_id,omitempty"`
+	S3SecretAccessKey string `json:"logical_backup_s3_secret_access_key,omitempty"`
+	S3SSE             string `json:"logical_backup_s3_sse,omitempty"`
 }

pkg/cluster/k8sres.go

@@ -1575,6 +1575,14 @@ func (c *Cluster) generateLogicalBackupPodEnvVars() []v1.EnvVar {
 			Name:  "LOGICAL_BACKUP_S3_BUCKET",
 			Value: c.OpConfig.LogicalBackup.LogicalBackupS3Bucket,
 		},
+		{
+			Name:  "LOGICAL_BACKUP_S3_ENDPOINT",
+			Value: c.OpConfig.LogicalBackup.LogicalBackupS3Endpoint,
+		},
+		{
+			Name:  "LOGICAL_BACKUP_S3_SSE",
+			Value: c.OpConfig.LogicalBackup.LogicalBackupS3SSE,
+		},
 		{
 			Name:  "LOGICAL_BACKUP_S3_BUCKET_SCOPE_SUFFIX",
 			Value: getBucketScopeSuffix(string(c.Postgresql.GetUID())),
@@ -1613,8 +1621,15 @@ func (c *Cluster) generateLogicalBackupPodEnvVars() []v1.EnvVar {
 		},
 	}
 
-	c.logger.Debugf("Generated logical backup env vars %v", envVars)
+	if c.OpConfig.LogicalBackup.LogicalBackupS3AccessKeyID != "" {
+		envVars = append(envVars, v1.EnvVar{Name: "AWS_ACCESS_KEY_ID", Value: c.OpConfig.LogicalBackup.LogicalBackupS3AccessKeyID})
+	}
 
+	if c.OpConfig.LogicalBackup.LogicalBackupS3SecretAccessKey != "" {
+		envVars = append(envVars, v1.EnvVar{Name: "AWS_SECRET_ACCESS_KEY", Value: c.OpConfig.LogicalBackup.LogicalBackupS3SecretAccessKey})
+	}
+
+	c.logger.Debugf("Generated logical backup env vars %v", envVars)
 	return envVars
 }
 

pkg/controller/operator_config.go

@@ -101,6 +101,10 @@ func (c *Controller) importConfigurationFromCRD(fromCRD *acidv1.OperatorConfigur
 	result.LogicalBackupSchedule = fromCRD.LogicalBackup.Schedule
 	result.LogicalBackupDockerImage = fromCRD.LogicalBackup.DockerImage
 	result.LogicalBackupS3Bucket = fromCRD.LogicalBackup.S3Bucket
+	result.LogicalBackupS3Endpoint = fromCRD.LogicalBackup.S3Endpoint
+	result.LogicalBackupS3AccessKeyID = fromCRD.LogicalBackup.S3AccessKeyID
+	result.LogicalBackupS3SecretAccessKey = fromCRD.LogicalBackup.S3SecretAccessKey
+	result.LogicalBackupS3SSE = fromCRD.LogicalBackup.S3SSE
 
 	// debug config
 	result.DebugLogging = fromCRD.OperatorDebug.DebugLogging

pkg/util/config/config.go

@@ -68,11 +68,15 @@ type Scalyr struct {
 	ScalyrMemoryLimit   string `name:"scalyr_memory_limit" default:"1Gi"`
 }
 
-// LogicalBackup
+// LogicalBackup defines configration for logical backup
 type LogicalBackup struct {
 	LogicalBackupSchedule          string `name:"logical_backup_schedule" default:"30 00 * * *"`
 	LogicalBackupDockerImage       string `name:"logical_backup_docker_image" default:"registry.opensource.zalan.do/acid/logical-backup"`
 	LogicalBackupS3Bucket          string `name:"logical_backup_s3_bucket" default:""`
+	LogicalBackupS3Endpoint        string `name:"logical_backup_s3_endpoint" default:""`
+	LogicalBackupS3AccessKeyID     string `name:"logical_backup_s3_access_key_id" default:""`
+	LogicalBackupS3SecretAccessKey string `name:"logical_backup_s3_secret_access_key" default:""`
+	LogicalBackupS3SSE             string `name:"logical_backup_s3_sse" default:"AES256"`
 }
 
 // Config describes operator config