80 lines
2.2 KiB
Go
80 lines
2.2 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 common
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import (
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"context"
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"errors"
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"reflect"
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"time"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/wait"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/alibaba/polardbx-operator/pkg/util/json"
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)
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func WaitForObjectToDisappear(c client.Client, name, namespace string, poll, timeout time.Duration, obj client.Object) error {
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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err := c.Get(ctx, types.NamespacedName{
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Namespace: namespace,
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Name: name,
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}, obj)
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if apierrors.IsNotFound(err) {
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return true, nil
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}
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if err != nil {
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return true, err // stop wait with error
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}
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return false, nil
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})
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}
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func isObjectListEmpty(objList client.ObjectList) (bool, error) {
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if objList == nil {
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return false, nil
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}
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items, err := json.GetFieldValueByJsonKey(objList, "items")
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if err != nil {
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return false, err
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}
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v := reflect.ValueOf(items)
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if v.Kind() != reflect.Slice {
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return false, errors.New("items not slice")
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}
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return v.IsNil() || v.Len() == 0, nil
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}
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func WaitForObjectsWithLabelsToDisappear(c client.Client, labels map[string]string, namespace string, poll, timeout time.Duration, objList client.ObjectList) error {
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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err := c.List(ctx, objList, client.InNamespace(namespace), client.MatchingLabels(labels))
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if err != nil {
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return true, err // stop wait with error
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}
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return isObjectListEmpty(objList)
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})
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}
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