mirror of
https://github.com/kubesphere/kubekey.git
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95 lines
3.1 KiB
Go
95 lines
3.1 KiB
Go
/*
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Copyright 2020 The Kubernetes 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 framework
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import (
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"context"
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"strings"
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. "github.com/onsi/gomega"
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"github.com/pkg/errors"
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corev1 "k8s.io/api/core/v1"
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"sigs.k8s.io/controller-runtime/pkg/client"
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)
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// PodListCondition is a type that operates a condition on a Pod.
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type PodListCondition func(p *corev1.PodList) error
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// WaitForPodListConditionInput is the input args for WaitForPodListCondition.
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type WaitForPodListConditionInput struct {
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Lister Lister
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ListOptions *client.ListOptions
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Condition PodListCondition
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}
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// WaitForPodListCondition waits for the specified condition to be true for all
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// pods returned from the list filter.
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func WaitForPodListCondition(ctx context.Context, input WaitForPodListConditionInput, intervals ...interface{}) {
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Eventually(func() (bool, error) {
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podList := &corev1.PodList{}
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if err := input.Lister.List(ctx, podList, input.ListOptions); err != nil {
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return false, err
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}
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// all pods in the list should satisfy the condition
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err := input.Condition(podList)
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if err != nil {
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return false, err
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}
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return true, nil
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}, intervals...).Should(BeTrue())
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}
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// EtcdImageTagCondition returns a podListCondition that ensures the pod image
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// contains the specified image tag.
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func EtcdImageTagCondition(expectedTag string, expectedCount int) PodListCondition {
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return func(pl *corev1.PodList) error {
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countWithCorrectTag := 0
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for _, pod := range pl.Items {
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if strings.Contains(pod.Spec.Containers[0].Image, expectedTag) {
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countWithCorrectTag++
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}
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}
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if countWithCorrectTag != expectedCount {
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return errors.Errorf("etcdImageTagCondition: expected %d pods to have image tag %q, got %d", expectedCount, expectedTag, countWithCorrectTag)
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}
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// This check is to ensure that if there are three controlplane nodes,
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// then there are only three etcd pods running. Currently, we create a
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// new etcd pod before deleting the previous one. So we can have a
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// case where there are three etcd pods with the correct tag and one
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// left over that has yet to be deleted.
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if len(pl.Items) != expectedCount {
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return errors.Errorf("etcdImageTagCondition: expected %d pods, got %d", expectedCount, len(pl.Items))
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}
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return nil
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}
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}
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// PhasePodCondition is a podListCondition ensuring that pods are in the expected
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// pod phase.
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func PhasePodCondition(expectedPhase corev1.PodPhase) PodListCondition {
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return func(pl *corev1.PodList) error {
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for _, pod := range pl.Items {
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if pod.Status.Phase != expectedPhase {
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return errors.Errorf("pod %q is not %s", pod.Name, expectedPhase)
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}
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}
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return nil
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}
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}
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