Set ELB timeout annotation for the service. (#114)

By default the ELB terminates the idle connection after 60 seconds. Increase this interval to a more reasonable one of 1 h.

pkg/cluster/k8sres.go

@@ -262,6 +262,7 @@ func (c *Cluster) genService(allowedSourceRanges []string) *v1.Service {
 			Labels:    c.labelsSet(),
 			Annotations: map[string]string{
 				constants.ZalandoDnsNameAnnotation: c.dnsName(),
+				constants.ElbTimeoutAnnotationName: constants.ElbTimeoutAnnotationValue,
 			},
 		},
 		Spec: v1.ServiceSpec{

pkg/util/constants/constants.go

@@ -2,16 +2,18 @@ package constants
 
 const (
 	//Constants
-	TPRName                  = "postgresql"
-	TPRVendor                = "acid.zalan.do"
-	TPRDescription           = "Managed PostgreSQL clusters"
-	TPRApiVersion            = "v1"
-	DataVolumeName           = "pgdata"
-	PasswordLength           = 64
-	UserSecretTemplate       = "%s.%s.credentials.%s.%s" // Username, ClusterName, TPRName, TPRVendor
-	ZalandoDnsNameAnnotation = "zalando.org/dnsname"
-	KubeIAmAnnotation        = "iam.amazonaws.com/role"
-	ResourceName             = TPRName + "s"
-	PodRoleMaster            = "master"
-	PodRoleReplica           = "replica"
+	TPRName                   = "postgresql"
+	TPRVendor                 = "acid.zalan.do"
+	TPRDescription            = "Managed PostgreSQL clusters"
+	TPRApiVersion             = "v1"
+	DataVolumeName            = "pgdata"
+	PasswordLength            = 64
+	UserSecretTemplate        = "%s.%s.credentials.%s.%s" // Username, ClusterName, TPRName, TPRVendor
+	ZalandoDnsNameAnnotation  = "zalando.org/dnsname"
+	ElbTimeoutAnnotationName  = "service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout"
+	ElbTimeoutAnnotationValue = "3600"
+	KubeIAmAnnotation         = "iam.amazonaws.com/role"
+	ResourceName              = TPRName + "s"
+	PodRoleMaster             = "master"
+	PodRoleReplica            = "replica"
 )