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* add ophan pods cleaner * upgrade duration to 10 minutes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| // Copyright 2018 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package member | ||
|
|
||
| import ( | ||
| "github.com/pingcap/tidb-operator/pkg/apis/pingcap.com/v1alpha1" | ||
| "github.com/pingcap/tidb-operator/pkg/controller" | ||
| "github.com/pingcap/tidb-operator/pkg/label" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| corelisters "k8s.io/client-go/listers/core/v1" | ||
| ) | ||
|
|
||
| const ( | ||
| skipReasonOrphanPodsCleanerIsNotPDOrTiKV = "orphan pods cleaner: member type is not pd or tikv" | ||
| skipReasonOrphanPodsCleanerPVCNameIsEmpty = "orphan pods cleaner: pvcName is empty" | ||
| skipReasonOrphanPodsCleanerPVCIsFound = "orphan pods cleaner: pvc is found" | ||
| ) | ||
|
|
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| // OrphanPodsCleaner implements the logic for cleaning the orphan pods(has no pvc) | ||
| type OrphanPodsCleaner interface { | ||
| Clean(*v1alpha1.TidbCluster) (map[string]string, error) | ||
| } | ||
|
|
||
| type orphanPodsCleaner struct { | ||
| podLister corelisters.PodLister | ||
| podControl controller.PodControlInterface | ||
| pvcLister corelisters.PersistentVolumeClaimLister | ||
| } | ||
|
|
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| // NewOrphanPodsCleaner returns a OrphanPodsCleaner | ||
| func NewOrphanPodsCleaner(podLister corelisters.PodLister, | ||
| podControl controller.PodControlInterface, | ||
| pvcLister corelisters.PersistentVolumeClaimLister) OrphanPodsCleaner { | ||
| return &orphanPodsCleaner{podLister, podControl, pvcLister} | ||
| } | ||
|
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| func (opc *orphanPodsCleaner) Clean(tc *v1alpha1.TidbCluster) (map[string]string, error) { | ||
| ns := tc.GetNamespace() | ||
| // for unit test | ||
| skipReason := map[string]string{} | ||
|
|
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| selector, err := label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).Selector() | ||
| if err != nil { | ||
| return skipReason, err | ||
| } | ||
| pods, err := opc.podLister.Pods(ns).List(selector) | ||
| if err != nil { | ||
| return skipReason, err | ||
| } | ||
|
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||
| for _, pod := range pods { | ||
| podName := pod.GetName() | ||
| l := label.Label(pod.Labels) | ||
| if !(l.IsPD() || l.IsTiKV()) { | ||
| skipReason[podName] = skipReasonOrphanPodsCleanerIsNotPDOrTiKV | ||
| continue | ||
| } | ||
|
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| var pvcName string | ||
| for _, vol := range pod.Spec.Volumes { | ||
| if vol.PersistentVolumeClaim != nil { | ||
| pvcName = vol.PersistentVolumeClaim.ClaimName | ||
| break | ||
| } | ||
| } | ||
| if pvcName == "" { | ||
| skipReason[podName] = skipReasonOrphanPodsCleanerPVCNameIsEmpty | ||
| continue | ||
| } | ||
|
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| _, err := opc.pvcLister.PersistentVolumeClaims(ns).Get(pvcName) | ||
| if err == nil { | ||
| skipReason[podName] = skipReasonOrphanPodsCleanerPVCIsFound | ||
| continue | ||
| } | ||
| if !errors.IsNotFound(err) { | ||
| return skipReason, err | ||
| } | ||
|
|
||
| err = opc.podControl.DeletePod(tc, pod) | ||
| if err != nil { | ||
| return skipReason, err | ||
| } | ||
| } | ||
|
|
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| return skipReason, nil | ||
| } | ||
|
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| type fakeOrphanPodsCleaner struct{} | ||
|
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| // NewFakeOrphanPodsCleaner returns a fake orphan pods cleaner | ||
| func NewFakeOrphanPodsCleaner() OrphanPodsCleaner { | ||
| return &fakeOrphanPodsCleaner{} | ||
| } | ||
|
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| func (fopc *fakeOrphanPodsCleaner) Clean(_ *v1alpha1.TidbCluster) (map[string]string, error) { | ||
| return nil, nil | ||
| } |
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