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Do not set aws-load-balancer-connection-idle-timeout by default (#3054) 

Co-authored-by: Felix Kunde <felix-kunde@gmx.de>
This commit is contained in:
Polina Bungina 2026-04-24 14:23:54 +02:00 committed by GitHub
parent 27c969d14b
commit 0ac28e3aad
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6 changed files with 14 additions and 51 deletions
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6
docs/administrator.md
View File

@ -891,15 +891,13 @@ cluster manifest. In the case any of these variables are omitted from the
manifest, the operator configuration settings `enable_master_load_balancer` and
`enable_replica_load_balancer` apply. Note that the operator settings affect
all Postgresql services running in all namespaces watched by the operator.
If load balancing is enabled two default annotations will be applied to its
services:
If load balancing is enabled the following default annotation will be applied to
its services:
- `external-dns.alpha.kubernetes.io/hostname` with the value defined by the
operator configs `master_dns_name_format` and `replica_dns_name_format`.
This value can't be overwritten. If any changing in its value is needed, it
MUST be done changing the DNS format operator config parameters; and
- `service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout` with
a default value of "3600".
There are multiple options to specify service annotations that will be merged
with each other and override in the following order (where latter take

2
e2e/tests/test_e2e.py
View File

@ -724,14 +724,12 @@ class EndToEndTestCase(unittest.TestCase):
master_annotations = {
"external-dns.alpha.kubernetes.io/hostname": "acid-minimal-cluster-pooler.default.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
}
self.eventuallyTrue(lambda: k8s.check_service_annotations(
master_pooler_label+","+pooler_label, master_annotations), "Wrong annotations")
replica_annotations = {
"external-dns.alpha.kubernetes.io/hostname": "acid-minimal-cluster-pooler-repl.default.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
}
self.eventuallyTrue(lambda: k8s.check_service_annotations(
replica_pooler_label+","+pooler_label, replica_annotations), "Wrong annotations")

46
pkg/cluster/cluster_test.go
View File

@ -680,8 +680,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
},
},
{
@ -702,8 +701,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
},
},
{
@ -714,8 +712,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: map[string]string{"foo": "bar"},
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"foo": "bar",
},
},
@ -737,8 +734,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: map[string]string{"foo": "bar"},
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"foo": "bar",
},
},
@ -780,8 +776,7 @@ func TestServiceAnnotations(t *testing.T) {
"external-dns.alpha.kubernetes.io/hostname": "wrong.external-dns-name.example.com",
},
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
},
},
{
@ -792,8 +787,7 @@ func TestServiceAnnotations(t *testing.T) {
serviceAnnotations: make(map[string]string),
operatorAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg.test.db.example.com,test-stg.acid.db.example.com",
},
},
{
@ -835,8 +829,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
},
},
{
@ -857,8 +850,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
},
},
{
@ -869,8 +861,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: make(map[string]string),
serviceAnnotations: map[string]string{"foo": "bar"},
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"foo": "bar",
},
},
@ -892,8 +883,7 @@ func TestServiceAnnotations(t *testing.T) {
operatorAnnotations: map[string]string{"foo": "bar"},
serviceAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"foo": "bar",
},
},
@ -935,8 +925,7 @@ func TestServiceAnnotations(t *testing.T) {
"external-dns.alpha.kubernetes.io/hostname": "wrong.external-dns-name.example.com",
},
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
},
},
{
@ -947,8 +936,7 @@ func TestServiceAnnotations(t *testing.T) {
serviceAnnotations: make(map[string]string),
operatorAnnotations: make(map[string]string),
expect: map[string]string{
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
"service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout": "3600",
"external-dns.alpha.kubernetes.io/hostname": "acid-test-stg-repl.test.db.example.com,test-stg-repl.acid.db.example.com",
},
},
{
@ -1377,7 +1365,6 @@ func TestCompareServices(t *testing.T) {
serviceWithOwnerReference := newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeClusterIP,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1406,7 +1393,6 @@ func TestCompareServices(t *testing.T) {
current: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeClusterIP,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1414,7 +1400,6 @@ func TestCompareServices(t *testing.T) {
new: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeClusterIP,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1426,7 +1411,6 @@ func TestCompareServices(t *testing.T) {
current: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeClusterIP,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1434,7 +1418,6 @@ func TestCompareServices(t *testing.T) {
new: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeLoadBalancer,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1447,7 +1430,6 @@ func TestCompareServices(t *testing.T) {
current: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeLoadBalancer,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1455,7 +1437,6 @@ func TestCompareServices(t *testing.T) {
new: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeLoadBalancer,
[]string{"185.249.56.0/22"},
@ -1468,7 +1449,6 @@ func TestCompareServices(t *testing.T) {
current: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeLoadBalancer,
[]string{"128.141.0.0/16", "137.138.0.0/16"},
@ -1476,7 +1456,6 @@ func TestCompareServices(t *testing.T) {
new: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeLoadBalancer,
[]string{},
@ -1489,7 +1468,6 @@ func TestCompareServices(t *testing.T) {
current: newService(
map[string]string{
constants.ZalandoDNSNameAnnotation: "clstr.acid.zalan.do",
constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
},
v1.ServiceTypeClusterIP,
[]string{"128.141.0.0/16", "137.138.0.0/16"},

4
pkg/cluster/connection_pooler.go
View File

@ -533,10 +533,6 @@ func (c *Cluster) generatePoolerServiceAnnotations(role PostgresRole, spec *acid
annotations := c.getCustomServiceAnnotations(role, spec)
if c.shouldCreateLoadBalancerForPoolerService(role, spec) {
// set ELB Timeout annotation with default value
if _, ok := annotations[constants.ElbTimeoutAnnotationName]; !ok {
annotations[constants.ElbTimeoutAnnotationName] = constants.ElbTimeoutAnnotationValue
}
// -repl suffix will be added by replicaDNSName
clusterNameWithPoolerSuffix := c.connectionPoolerName(Master)
if role == Master {

5
pkg/cluster/k8sres.go
View File

@ -2029,11 +2029,6 @@ func (c *Cluster) generateServiceAnnotations(role PostgresRole, spec *acidv1.Pos
if c.shouldCreateLoadBalancerForService(role, spec) {
dnsName := c.dnsName(role)
// Just set ELB Timeout annotation with default value, if it does not
// have a custom value
if _, ok := annotations[constants.ElbTimeoutAnnotationName]; !ok {
annotations[constants.ElbTimeoutAnnotationName] = constants.ElbTimeoutAnnotationValue
}
// External DNS name annotation is not customizable
annotations[constants.ZalandoDNSNameAnnotation] = dnsName
}

2
pkg/util/constants/annotations.go
View File

@ -3,8 +3,6 @@ package constants
// Names and values in Kubernetes annotation for services, statefulsets and volumes
const (
ZalandoDNSNameAnnotation = "external-dns.alpha.kubernetes.io/hostname"
ElbTimeoutAnnotationName = "service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout"
ElbTimeoutAnnotationValue = "3600"
KubeIAmAnnotation = "iam.amazonaws.com/role"
VolumeStorateProvisionerAnnotation = "pv.kubernetes.io/provisioned-by"
PostgresqlControllerAnnotationKey = "acid.zalan.do/controller"