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Allow configuring pod priority globally and per cluster. (#353)

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* Allow configuring pod priority globally and per cluster.

Allow to specify pod priority class for all pods managed by the operator,
as well as for those belonging to individual clusters.

Controlled by the pod_priority_class_name operator configuration
parameter and the podPriorityClassName manifest option.

See https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
for the explanation on how to define priority classes since Kubernetes 1.8.

Some import order changes are due to go fmt.
Removal of OrphanDependents deprecated field.

Code review by @zerg-junior
This commit is contained in:
Oleksii Kliukin
2018-08-03 14:03:37 +02:00
committed by GitHub
parent ac7b132314
commit 59f0c5551e
21 changed files with 96 additions and 68 deletions
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pkg/cluster/cluster.go
+10 -10
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@@ -12,11 +12,11 @@ import (
"time"
"github.com/Sirupsen/logrus"
"k8s.io/api/apps/v1beta1"
"k8s.io/api/core/v1"
policybeta1 "k8s.io/api/policy/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/api/core/v1"
"k8s.io/api/apps/v1beta1"
policybeta1 "k8s.io/api/policy/v1beta1"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/cache"
@@ -91,7 +91,7 @@ type compareStatefulsetResult struct {
// New creates a new cluster. This function should be called from a controller.
func New(cfg Config, kubeClient k8sutil.KubernetesClient, pgSpec spec.Postgresql, logger *logrus.Entry) *Cluster {
orphanDependents := true
deletePropagationPolicy := metav1.DeletePropagationOrphan
podEventsQueue := cache.NewFIFO(func(obj interface{}) (string, error) {
e, ok := obj.(spec.PodEvent)
@@ -113,7 +113,7 @@ func New(cfg Config, kubeClient k8sutil.KubernetesClient, pgSpec spec.Postgresql
Services: make(map[PostgresRole]*v1.Service),
Endpoints: make(map[PostgresRole]*v1.Endpoints)},
userSyncStrategy: users.DefaultUserSyncStrategy{},
deleteOptions: &metav1.DeleteOptions{OrphanDependents: &orphanDependents},
deleteOptions: &metav1.DeleteOptions{PropagationPolicy: &deletePropagationPolicy},
podEventsQueue: podEventsQueue,
KubeClient: kubeClient,
}
@@ -601,7 +601,7 @@ func (c *Cluster) Delete() {
}
for _, obj := range c.Secrets {
if delete, user := c.shouldDeleteSecret(obj); !delete {
if doDelete, user := c.shouldDeleteSecret(obj); !doDelete {
c.logger.Warningf("not removing secret %q for the system user %q", obj.GetName(), user)
continue
}
@@ -951,11 +951,11 @@ func (c *Cluster) deletePatroniClusterEndpoints() error {
return util.NameFromMeta(ep.ObjectMeta), err
}
delete := func(name string) error {
deleteEndpointFn := func(name string) error {
return c.KubeClient.Endpoints(c.Namespace).Delete(name, c.deleteOptions)
}
return c.deleteClusterObject(get, delete, "endpoint")
return c.deleteClusterObject(get, deleteEndpointFn, "endpoint")
}
func (c *Cluster) deletePatroniClusterConfigMaps() error {
@@ -964,9 +964,9 @@ func (c *Cluster) deletePatroniClusterConfigMaps() error {
return util.NameFromMeta(cm.ObjectMeta), err
}
delete := func(name string) error {
deleteConfigMapFn := func(name string) error {
return c.KubeClient.ConfigMaps(c.Namespace).Delete(name, c.deleteOptions)
}
return c.deleteClusterObject(get, delete, "configmap")
return c.deleteClusterObject(get, deleteConfigMapFn, "configmap")
}