Merge branch 'master' into feature/tests

# Conflicts:
#	pkg/util/teams/teams.go

manifests/configmap.yaml

@@ -25,7 +25,6 @@ data:
   resource_check_interval: 3s
   resource_check_timeout: 10m
   resync_period: 5m
-  resync_period_pod: 5m
   super_username: postgres
   teams_api_url: http://fake-teams-api.default.svc.cluster.local
   workers: "4"

pkg/cluster/cluster.go

@@ -430,7 +430,7 @@ func (c *Cluster) Update(newSpec *spec.Postgresql) error {
 					c.logger.Infof("%s service '%s' has been created", role, util.NameFromMeta(service.ObjectMeta))
 				}
 			}
-			// only proceeed further if both old and new load balancer were present
+			// only proceed further if both old and new load balancer were present
 			if !(newSpec.Spec.ReplicaLoadBalancer && c.Spec.ReplicaLoadBalancer) {
 				continue
 			}

pkg/cluster/sync.go

@@ -39,7 +39,7 @@ func (c *Cluster) Sync() error {
 			if c.Service[role] != nil {
 				// delete the left over replica service
 				if err := c.deleteService(role); err != nil {
-					return fmt.Errorf("could not delete obsolete %s service: %v", role)
+					return fmt.Errorf("could not delete obsolete %s service: %v", role, err)
 				}
 			}
 			continue

pkg/cluster/volumes.go

@@ -109,8 +109,8 @@ func (c *Cluster) resizeVolumes(newVolume spec.Volume, resizers []volumes.Volume
 					return fmt.Errorf("could not connect to the volume provider: %v", err)
 				}
 				defer func() {
-					err2 := resizer.DisconnectFromProvider(); if err2 != nil {
-						c.logger.Errorf("%v", err2)
+					if err := resizer.DisconnectFromProvider(); err != nil {
+						c.logger.Errorf("%v", err)
 					}
 				}()
 			}
@@ -127,7 +127,7 @@ func (c *Cluster) resizeVolumes(newVolume spec.Volume, resizers []volumes.Volume
 			if err := c.resizePostgresFilesystem(podName, []filesystems.FilesystemResizer{&filesystems.Ext234Resize{}}); err != nil {
 				return fmt.Errorf("could not resize the filesystem on pod '%s': %v", podName, err)
 			}
-			c.logger.Debugf("filesystem resize successfull on volume %s", pv.Name)
+			c.logger.Debugf("filesystem resize successful on volume %s", pv.Name)
 			pv.Spec.Capacity[v1.ResourceStorage] = newQuantity
 			c.logger.Debugf("updating persistent volume definition for volume %s", pv.Name)
 			if _, err := c.KubeClient.PersistentVolumes().Update(pv); err != nil {

pkg/controller/controller.go

@@ -13,6 +13,7 @@ import (
 	"github.com/zalando-incubator/postgres-operator/pkg/cluster"
 	"github.com/zalando-incubator/postgres-operator/pkg/spec"
 	"github.com/zalando-incubator/postgres-operator/pkg/util/config"
+	"github.com/zalando-incubator/postgres-operator/pkg/util/constants"
 	"github.com/zalando-incubator/postgres-operator/pkg/util/teams"
 )
 
@@ -38,6 +39,8 @@ type Controller struct {
 	podCh              chan spec.PodEvent
 
 	clusterEventQueues []*cache.FIFO
+
+	lastClusterSyncTime int64
 }
 
 func New(controllerConfig *Config, operatorConfig *config.Config) *Controller {
@@ -93,7 +96,7 @@ func (c *Controller) initController() {
 	c.postgresqlInformer = cache.NewSharedIndexInformer(
 		clusterLw,
 		&spec.Postgresql{},
-		c.opConfig.ResyncPeriod,
+		constants.QueueResyncPeriodTPR,
 		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
 
 	if err := c.postgresqlInformer.AddEventHandler(cache.ResourceEventHandlerFuncs{
@@ -113,7 +116,7 @@ func (c *Controller) initController() {
 	c.podInformer = cache.NewSharedIndexInformer(
 		podLw,
 		&v1.Pod{},
-		c.opConfig.ResyncPeriodPod,
+		constants.QueueResyncPeriodPod,
 		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
 
 	if err := c.podInformer.AddEventHandler(cache.ResourceEventHandlerFuncs{
@@ -141,6 +144,7 @@ func (c *Controller) runInformers(stopCh <-chan struct{}) {
 	go c.postgresqlInformer.Run(stopCh)
 	go c.podInformer.Run(stopCh)
 	go c.podEventsDispatcher(stopCh)
+	go c.clusterResync(stopCh)
 
 	<-stopCh
 }

pkg/controller/postgresql.go

@@ -3,6 +3,8 @@ package controller
 import (
 	"fmt"
 	"reflect"
+	"sync/atomic"
+	"time"
 
 	"k8s.io/client-go/pkg/api"
 	"k8s.io/client-go/pkg/api/meta"
@@ -18,6 +20,19 @@ import (
 	"github.com/zalando-incubator/postgres-operator/pkg/util/constants"
 )
 
+func (c *Controller) clusterResync(stopCh <-chan struct{}) {
+	ticker := time.NewTicker(c.opConfig.ResyncPeriod)
+
+	for {
+		select {
+		case <-ticker.C:
+			c.clusterListFunc(api.ListOptions{ResourceVersion: "0"})
+		case <-stopCh:
+			return
+		}
+	}
+}
+
 func (c *Controller) clusterListFunc(options api.ListOptions) (runtime.Object, error) {
 	c.logger.Info("Getting list of currently running clusters")
 
@@ -37,6 +52,11 @@ func (c *Controller) clusterListFunc(options api.ListOptions) (runtime.Object, e
 		return nil, fmt.Errorf("could not extract list of postgresql objects: %v", err)
 	}
 
+	if time.Now().Unix()-atomic.LoadInt64(&c.lastClusterSyncTime) <= int64(c.opConfig.ResyncPeriod.Seconds()) {
+		c.logger.Debugln("skipping resync of clusters")
+		return object, err
+	}
+
 	var activeClustersCnt, failedClustersCnt int
 	for _, obj := range objList {
 		pg, ok := obj.(*spec.Postgresql)
@@ -63,6 +83,8 @@ func (c *Controller) clusterListFunc(options api.ListOptions) (runtime.Object, e
 		c.logger.Infof("No clusters running")
 	}
 
+	atomic.StoreInt64(&c.lastClusterSyncTime, time.Now().Unix())
+
 	return object, err
 }
 

pkg/spec/postgresql.go

@@ -135,12 +135,12 @@ func (m *MaintenanceWindow) MarshalJSON() ([]byte, error) {
 		return []byte(fmt.Sprintf("\"%s-%s\"",
 			m.StartTime.Format("15:04"),
 			m.EndTime.Format("15:04"))), nil
-	} else {
+	}
+
 	return []byte(fmt.Sprintf("\"%s:%s-%s\"",
 		m.Weekday.String()[:3],
 		m.StartTime.Format("15:04"),
 		m.EndTime.Format("15:04"))), nil
-	}
 }
 
 // UnmarshalJSON convets a JSON to the maintenance window definition.

pkg/spec/postgresql_test.go

@@ -282,7 +282,7 @@ var postgresqlList = []struct {
 				Kind:       "List",
 				APIVersion: "v1",
 			},
-			Items: []Postgresql{Postgresql{
+			Items: []Postgresql{{
 				TypeMeta: unversioned.TypeMeta{
 					Kind:       "Postgresql",
 					APIVersion: "acid.zalan.do/v1",
@@ -382,7 +382,7 @@ func TestUnmarshalMaintenanceWindow(t *testing.T) {
 		}
 
 		if !reflect.DeepEqual(m, tt.out) {
-			t.Errorf("Expected maintenace window: %#v, got: %#v", tt.out, m)
+			t.Errorf("Expected maintenance window: %#v, got: %#v", tt.out, m)
 		}
 	}
 }

pkg/util/config/config.go

@@ -15,7 +15,6 @@ type TPR struct {
 }
 
 type Resources struct {
-	ResyncPeriodPod        time.Duration     `name:"resync_period_pod" default:"5m"`
 	ResourceCheckInterval  time.Duration     `name:"resource_check_interval" default:"3s"`
 	ResourceCheckTimeout   time.Duration     `name:"resource_check_timeout" default:"10m"`
 	PodLabelWaitTimeout    time.Duration     `name:"pod_label_wait_timeout" default:"10m"`

pkg/util/constants/kubernetes.go

@@ -10,4 +10,7 @@ const (
 	K8sAPIPath                  = "/api"
 	StatefulsetDeletionInterval = 1 * time.Second
 	StatefulsetDeletionTimeout  = 30 * time.Second
+
+	QueueResyncPeriodPod = 5 * time.Minute
+	QueueResyncPeriodTPR = 5 * time.Minute
 )

pkg/util/util_test.go

@@ -25,13 +25,6 @@ var pgUsers = []struct {
 		MemberOf: []string{}},
 		"md592f413f3974bdf3799bb6fecb5f9f2c6"}}
 
-var prettyTest = []struct {
-	in  interface{}
-	out string
-}{
-	{pgUsers, `[{{test password [] []} md587f77988ccb5aa917c93201ba314fcd4} {{test md592f413f3974bdf3799bb6fecb5f9f2c6 [] []} md592f413f3974bdf3799bb6fecb5f9f2c6}]`},
-}
-
 var prettyDiffTest = []struct {
 	inA interface{}
 	inB interface{}