110 lines
3.7 KiB
Go
110 lines
3.7 KiB
Go
/*
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Copyright 2021 Alibaba Group Holding Limited.
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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 controllers
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import (
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"context"
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polardbxv1 "github.com/alibaba/polardbx-operator/api/v1"
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"github.com/alibaba/polardbx-operator/pkg/k8s/control"
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"github.com/alibaba/polardbx-operator/pkg/operator/hint"
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"github.com/alibaba/polardbx-operator/pkg/operator/v1/config"
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polardbxreconcile "github.com/alibaba/polardbx-operator/pkg/operator/v1/polardbx/reconcile"
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"github.com/alibaba/polardbx-operator/pkg/operator/v1/polardbx/steps/backup/schedule"
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"github.com/go-logr/logr"
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"golang.org/x/time/rate"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/client-go/util/workqueue"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/controller"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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"time"
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)
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type PolarDBXBackupScheduleReconciler struct {
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BaseRc *control.BaseReconcileContext
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Logger logr.Logger
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config.LoaderFactory
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MaxConcurrency int
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}
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func (r *PolarDBXBackupScheduleReconciler) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
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log := r.Logger.WithValues("namespace", request.Namespace, "polardbxbackupschedule", request.Name)
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if hint.IsNamespacePaused(request.Namespace) {
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log.Info("Reconcile is paused, skip")
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return reconcile.Result{}, nil
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}
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rc := polardbxreconcile.NewContext(
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control.NewBaseReconcileContextFrom(r.BaseRc, ctx, request),
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r.LoaderFactory(),
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)
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rc.SetPolarDBXBackupScheduleKey(request.NamespacedName)
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defer rc.Close()
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backupSchedule, err := rc.GetPolarDBXBackupSchedule()
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if err != nil {
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if apierrors.IsNotFound(err) {
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log.Info("Object not found, might be deleted, just ignore.")
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return reconcile.Result{}, nil
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}
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log.Error(err, "Unable to get polardbx backup schedule object.")
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return reconcile.Result{}, err
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}
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if backupSchedule.Spec.Suspend {
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log.Info("Backup schedule suspended, just skip.")
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return reconcile.Result{}, nil
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}
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return r.reconcile(rc, backupSchedule, log)
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}
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func (r *PolarDBXBackupScheduleReconciler) reconcile(rc *polardbxreconcile.Context, backupSchedule *polardbxv1.PolarDBXBackupSchedule, log logr.Logger) (reconcile.Result, error) {
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task := r.newReconcileTask(rc, backupSchedule, log)
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return control.NewExecutor(log).Execute(rc, task)
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}
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func (r *PolarDBXBackupScheduleReconciler) newReconcileTask(rc *polardbxreconcile.Context, backupSchedule *polardbxv1.PolarDBXBackupSchedule, log logr.Logger) *control.Task {
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task := control.NewTask()
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defer schedule.PersistPolarDBXBackupScheduleStatus(task, true)
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schedule.CleanOutdatedBackupSet(task)
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schedule.CheckNextScheduleTime(task)
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schedule.CheckUnderwayBackup(task)
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schedule.DispatchBackupTask(task)
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return task
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}
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func (r *PolarDBXBackupScheduleReconciler) SetupWithManager(mgr ctrl.Manager) error {
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return ctrl.NewControllerManagedBy(mgr).
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WithOptions(controller.Options{
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MaxConcurrentReconciles: r.MaxConcurrency,
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RateLimiter: workqueue.NewMaxOfRateLimiter(
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workqueue.NewItemExponentialFailureRateLimiter(5*time.Millisecond, 300*time.Second),
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// 60 qps, 10 bucket size. This is only for retry speed. It's only the overall factor (not per item).
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&workqueue.BucketRateLimiter{Limiter: rate.NewLimiter(rate.Limit(60), 10)},
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),
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}).
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For(&polardbxv1.PolarDBXBackupSchedule{}).
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Complete(r)
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}
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