import PodToleration from opConfig to internal config (zalando#1647)

* import PodToleration from opConfig to internal config
* add examples to manifests and values.yaml

Author: FxKu

charts/postgres-operator/values.yaml

@@ -168,6 +168,12 @@ configKubernetes:
   spilo_allow_privilege_escalation: true
   # storage resize strategy, available options are: ebs, pvc, off
   storage_resize_mode: pvc
+  # pod toleration assigned to instances of every Postgres cluster
+  # toleration:
+  #   key: db-only
+  #   operator: Exists
+  #   effect: NoSchedule
+
   # operator watches for postgres objects in the given namespace
   watched_namespace: "*"  # listen to all namespaces
 

manifests/configmap.yaml

@@ -128,7 +128,7 @@ data:
   # team_admin_role: "admin"
   # team_api_role_configuration: "log_statement:all"
   # teams_api_url: http://fake-teams-api.default.svc.cluster.local
-  # toleration: ""
+  # toleration: "key:db-only,operator:Exists,effect:NoSchedule"
   # wal_az_storage_account: ""
   # wal_gs_bucket: ""
   # wal_s3_bucket: ""

manifests/postgresql-operator-default-configuration.yaml

@@ -86,7 +86,10 @@ configuration:
     # spilo_fsgroup: 103
     spilo_privileged: false
     storage_resize_mode: pvc
-    # toleration: {}
+    # toleration:
+    #   key: db-only
+    #   operator: Exists
+    #   effect: NoSchedule
     # watched_namespace: ""
   postgres_pod_resources:
     default_cpu_limit: "1"

pkg/controller/operator_config.go

@@ -113,6 +113,7 @@ func (c *Controller) importConfigurationFromCRD(fromCRD *acidv1.OperatorConfigur
 	result.MasterPodMoveTimeout = util.CoalesceDuration(time.Duration(fromCRD.Kubernetes.MasterPodMoveTimeout), "10m")
 	result.EnablePodAntiAffinity = fromCRD.Kubernetes.EnablePodAntiAffinity
 	result.PodAntiAffinityTopologyKey = util.Coalesce(fromCRD.Kubernetes.PodAntiAffinityTopologyKey, "kubernetes.io/hostname")
+	result.PodToleration = fromCRD.Kubernetes.PodToleration
 
 	// Postgres Pod resources
 	result.DefaultCPURequest = util.Coalesce(fromCRD.PostgresPodResources.DefaultCPURequest, "100m")