114 lines
3.4 KiB
Go
114 lines
3.4 KiB
Go
/*
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Copyright 2022 The Kruise Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package labelpatch
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import (
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"context"
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"fmt"
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"github.com/openkruise/rollouts/api/v1alpha1"
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batchcontext "github.com/openkruise/rollouts/pkg/controller/batchrelease/context"
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"github.com/openkruise/rollouts/pkg/util"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/klog/v2"
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"sigs.k8s.io/controller-runtime/pkg/client"
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)
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type LabelPatcher interface {
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PatchPodBatchLabel(ctx *batchcontext.BatchContext) error
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}
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func NewLabelPatcher(cli client.Client, logKey klog.ObjectRef) *realPatcher {
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return &realPatcher{Client: cli, logKey: logKey}
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}
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type realPatcher struct {
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client.Client
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logKey klog.ObjectRef
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}
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func (r *realPatcher) PatchPodBatchLabel(ctx *batchcontext.BatchContext) error {
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if ctx.RolloutID == "" || len(ctx.Pods) == 0 {
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return nil
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}
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pods := ctx.Pods
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if ctx.FilterFunc != nil {
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pods = ctx.FilterFunc(pods, ctx)
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}
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return r.patchPodBatchLabel(pods, ctx)
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}
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// PatchPodBatchLabel will patch rollout-id && batch-id to pods
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func (r *realPatcher) patchPodBatchLabel(pods []*corev1.Pod, ctx *batchcontext.BatchContext) error {
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// the number of active pods that has been patched successfully.
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patchedUpdatedReplicas := int32(0)
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// the number of target active pods that should be patched batch label.
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plannedUpdatedReplicas := ctx.PlannedUpdatedReplicas
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for _, pod := range pods {
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if !util.IsConsistentWithRevision(pod, ctx.UpdateRevision) {
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continue
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}
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podRolloutID := pod.Labels[v1alpha1.RolloutIDLabel]
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if pod.DeletionTimestamp.IsZero() && podRolloutID == ctx.RolloutID {
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patchedUpdatedReplicas++
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}
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}
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// all pods that should be patched have been patched
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if patchedUpdatedReplicas >= plannedUpdatedReplicas {
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return nil // return fast
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}
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for _, pod := range pods {
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if pod.DeletionTimestamp.IsZero() {
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// we don't patch label for the active old revision pod
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if !util.IsConsistentWithRevision(pod, ctx.UpdateRevision) {
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continue
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}
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// we don't continue to patch if the goal is met
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if patchedUpdatedReplicas >= ctx.PlannedUpdatedReplicas {
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continue
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}
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}
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// if it has been patched, just ignore
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if pod.Labels[v1alpha1.RolloutIDLabel] == ctx.RolloutID {
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continue
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}
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clone := util.GetEmptyObjectWithKey(pod)
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by := fmt.Sprintf(`{"metadata":{"labels":{"%s":"%s","%s":"%d"}}}`,
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v1alpha1.RolloutIDLabel, ctx.RolloutID, v1alpha1.RolloutBatchIDLabel, ctx.CurrentBatch+1)
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if err := r.Patch(context.TODO(), clone, client.RawPatch(types.StrategicMergePatchType, []byte(by))); err != nil {
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return err
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}
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if pod.DeletionTimestamp.IsZero() {
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patchedUpdatedReplicas++
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}
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klog.Infof("Successfully patch Pod(%v) batchID %d label", klog.KObj(pod), ctx.CurrentBatch+1)
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}
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if patchedUpdatedReplicas >= plannedUpdatedReplicas {
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return nil
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}
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return fmt.Errorf("patched %v pods for %v, however the goal is %d", patchedUpdatedReplicas, r.logKey, plannedUpdatedReplicas)
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}
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