mirror of https://github.com/helm/helm
Adam Reese
7 years ago
committed by
GitHub
commit
0ab38a998c
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 kube // import "k8s.io/helm/pkg/kube"
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import (
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"log"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/pkg/apis/apps"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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core "k8s.io/kubernetes/pkg/client/clientset_generated/clientset/typed/core/v1"
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extensions "k8s.io/kubernetes/pkg/client/clientset_generated/clientset/typed/extensions/v1beta1"
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internalclientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
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)
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// deployment holds associated replicaSets for a deployment
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type deployment struct {
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replicaSets *v1beta1.ReplicaSet
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deployment *v1beta1.Deployment
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}
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// waitForResources polls to get the current status of all pods, PVCs, and Services
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// until all are ready or a timeout is reached
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func (c *Client) waitForResources(timeout time.Duration, created Result) error {
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log.Printf("beginning wait for resources with timeout of %v", timeout)
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cs, _ := c.ClientSet()
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client := versionedClientsetForDeployment(cs)
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return wait.Poll(2*time.Second, timeout, func() (bool, error) {
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pods := []v1.Pod{}
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services := []v1.Service{}
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pvc := []v1.PersistentVolumeClaim{}
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replicaSets := []*v1beta1.ReplicaSet{}
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deployments := []deployment{}
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for _, v := range created {
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obj, err := c.AsVersionedObject(v.Object)
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if err != nil && !runtime.IsNotRegisteredError(err) {
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return false, err
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}
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switch value := obj.(type) {
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case (*v1.ReplicationController):
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list, err := getPods(client, value.Namespace, value.Spec.Selector)
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if err != nil {
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return false, err
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}
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pods = append(pods, list...)
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case (*v1.Pod):
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pod, err := client.Core().Pods(value.Namespace).Get(value.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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pods = append(pods, *pod)
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case (*v1beta1.Deployment):
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// Get the RS children first
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rs, err := client.Extensions().ReplicaSets(value.Namespace).List(metav1.ListOptions{
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FieldSelector: fields.Everything().String(),
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LabelSelector: labels.Set(value.Spec.Selector.MatchLabels).AsSelector().String(),
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})
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if err != nil {
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return false, err
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}
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for _, i := range rs.Items {
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replicaSets = append(replicaSets, &i)
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}
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currentDeployment, err := client.Extensions().Deployments(value.Namespace).Get(value.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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// Find RS associated with deployment
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newReplicaSet, err := deploymentutil.FindNewReplicaSet(currentDeployment, replicaSets)
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if err != nil {
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return false, err
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}
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newDeployment := deployment{
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newReplicaSet,
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currentDeployment,
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}
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deployments = append(deployments, newDeployment)
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case (*v1beta1.DaemonSet):
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list, err := getPods(client, value.Namespace, value.Spec.Selector.MatchLabels)
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if err != nil {
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return false, err
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}
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pods = append(pods, list...)
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case (*apps.StatefulSet):
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list, err := getPods(client, value.Namespace, value.Spec.Selector.MatchLabels)
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if err != nil {
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return false, err
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}
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pods = append(pods, list...)
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case (*v1beta1.ReplicaSet):
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list, err := getPods(client, value.Namespace, value.Spec.Selector.MatchLabels)
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if err != nil {
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return false, err
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}
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pods = append(pods, list...)
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case (*v1.PersistentVolumeClaim):
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claim, err := client.Core().PersistentVolumeClaims(value.Namespace).Get(value.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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pvc = append(pvc, *claim)
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case (*v1.Service):
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svc, err := client.Core().Services(value.Namespace).Get(value.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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services = append(services, *svc)
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}
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}
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return podsReady(pods) && servicesReady(services) && volumesReady(pvc) && deploymentsReady(deployments), nil
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})
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}
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func podsReady(pods []v1.Pod) bool {
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for _, pod := range pods {
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if !v1.IsPodReady(&pod) {
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return false
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}
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}
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return true
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}
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func servicesReady(svc []v1.Service) bool {
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for _, s := range svc {
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// Make sure the service is not explicitly set to "None" before checking the IP
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if s.Spec.ClusterIP != v1.ClusterIPNone && !v1.IsServiceIPSet(&s) {
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return false
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}
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// This checks if the service has a LoadBalancer and that balancer has an Ingress defined
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if s.Spec.Type == v1.ServiceTypeLoadBalancer && s.Status.LoadBalancer.Ingress == nil {
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return false
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}
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}
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return true
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}
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func volumesReady(vols []v1.PersistentVolumeClaim) bool {
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for _, v := range vols {
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if v.Status.Phase != v1.ClaimBound {
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return false
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}
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}
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return true
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}
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func deploymentsReady(deployments []deployment) bool {
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for _, v := range deployments {
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if !(v.replicaSets.Status.ReadyReplicas >= *v.deployment.Spec.Replicas-deploymentutil.MaxUnavailable(*v.deployment)) {
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return false
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}
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}
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return true
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}
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func getPods(client clientset.Interface, namespace string, selector map[string]string) ([]v1.Pod, error) {
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list, err := client.Core().Pods(namespace).List(metav1.ListOptions{
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FieldSelector: fields.Everything().String(),
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LabelSelector: labels.Set(selector).AsSelector().String(),
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})
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return list.Items, err
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}
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func versionedClientsetForDeployment(internalClient internalclientset.Interface) clientset.Interface {
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if internalClient == nil {
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return &clientset.Clientset{}
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}
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return &clientset.Clientset{
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CoreV1Client: core.New(internalClient.Core().RESTClient()),
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ExtensionsV1beta1Client: extensions.New(internalClient.Extensions().RESTClient()),
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}
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}
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@ -0,0 +1,25 @@
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#!/usr/bin/env bash
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# Copyright 2016 The Kubernetes Authors All rights reserved.
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#
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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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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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# Copies the current versions of apimachinery and client-go out of the
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# main kubernetes repo. These repos are currently out of sync and not
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# versioned.
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set -euo pipefail
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rm -rf ./vendor/k8s.io/{kube-aggregator,apiserver,apimachinery,client-go}
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cp -r ./vendor/k8s.io/kubernetes/staging/src/k8s.io/{kube-aggregator,apiserver,apimachinery,client-go} ./vendor/k8s.io
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