mirror of https://github.com/knative/pkg.git
116 lines
4.2 KiB
Go
116 lines
4.2 KiB
Go
/*
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Copyright 2018 The Knative 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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// kube_checks contains functions which poll Kubernetes objects until
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// they get into the state desired by the caller or time out.
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package test
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/knative/pkg/test/logging"
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corev1 "k8s.io/api/core/v1"
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apiv1beta1 "k8s.io/api/extensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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k8styped "k8s.io/client-go/kubernetes/typed/core/v1"
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)
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const (
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interval = 1 * time.Second
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podTimeout = 8 * time.Minute
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logTimeout = 1 * time.Minute
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)
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// WaitForDeploymentState polls the status of the Deployment called name
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// from client every interval until inState returns `true` indicating it
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// is done, returns an error or timeout. desc will be used to name the metric
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// that is emitted to track how long it took for name to get into the state checked by inState.
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func WaitForDeploymentState(client *KubeClient, name string, inState func(d *apiv1beta1.Deployment) (bool, error), desc string, namespace string, timeout time.Duration) error {
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d := client.Kube.ExtensionsV1beta1().Deployments(namespace)
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span := logging.GetEmitableSpan(context.Background(), fmt.Sprintf("WaitForDeploymentState/%s/%s", name, desc))
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defer span.End()
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return wait.PollImmediate(interval, timeout, func() (bool, error) {
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d, err := d.Get(name, metav1.GetOptions{})
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if err != nil {
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return true, err
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}
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return inState(d)
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})
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}
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// WaitForPodListState polls the status of the PodList
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// from client every interval until inState returns `true` indicating it
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// is done, returns an error or timeout. desc will be used to name the metric
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// that is emitted to track how long it took to get into the state checked by inState.
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func WaitForPodListState(client *KubeClient, inState func(p *corev1.PodList) (bool, error), desc string, namespace string) error {
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p := client.Kube.CoreV1().Pods(namespace)
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span := logging.GetEmitableSpan(context.Background(), fmt.Sprintf("WaitForPodListState/%s", desc))
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defer span.End()
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return wait.PollImmediate(interval, podTimeout, func() (bool, error) {
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p, err := p.List(metav1.ListOptions{})
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if err != nil {
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return true, err
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}
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return inState(p)
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})
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}
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// GetConfigMap gets the configmaps for a given namespace
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func GetConfigMap(client *KubeClient, namespace string) k8styped.ConfigMapInterface {
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return client.Kube.CoreV1().ConfigMaps(namespace)
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}
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// DeploymentScaledToZeroFunc returns a func that evaluates if a deployment has scaled to 0 pods
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func DeploymentScaledToZeroFunc() func(d *apiv1beta1.Deployment) (bool, error) {
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return func(d *apiv1beta1.Deployment) (bool, error) {
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return d.Status.ReadyReplicas == 0, nil
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}
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}
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// WaitForLogContent waits until logs for given Pod/Container include the given content.
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// If the content is not present within timeout it returns error.
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func WaitForLogContent(client *KubeClient, podName, containerName, content string) error {
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return wait.PollImmediate(interval, logTimeout, func() (bool, error) {
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logs, err := client.PodLogs(podName, containerName)
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if err != nil {
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return true, err
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}
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return strings.Contains(string(logs), content), nil
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})
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}
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// WaitForAllPodsRunning waits for all the pods to be in running state
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func WaitForAllPodsRunning(client *KubeClient, namespace string) error {
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return WaitForPodListState(client, PodsRunning, "PodsAreRunning", namespace)
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}
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// PodsRunning will check the status conditions of the pod list and return true all pods are Running
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func PodsRunning(podList *corev1.PodList) (bool, error) {
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for _, pod := range podList.Items {
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if pod.Status.Phase != corev1.PodRunning && pod.Status.Phase != corev1.PodSucceeded {
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return false, nil
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}
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}
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return true, nil
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}
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