mirror of https://github.com/helm/helm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
278 lines
8.9 KiB
278 lines
8.9 KiB
/*
|
|
Copyright The Helm Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package kube // import "helm.sh/helm/pkg/kube"
|
|
|
|
import (
|
|
"time"
|
|
|
|
appsv1 "k8s.io/api/apps/v1"
|
|
appsv1beta1 "k8s.io/api/apps/v1beta1"
|
|
appsv1beta2 "k8s.io/api/apps/v1beta2"
|
|
v1 "k8s.io/api/core/v1"
|
|
extensions "k8s.io/api/extensions/v1beta1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/fields"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/util/wait"
|
|
"k8s.io/client-go/kubernetes"
|
|
deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
|
|
)
|
|
|
|
// deployment holds associated replicaSets for a deployment
|
|
type deployment struct {
|
|
replicaSets *appsv1.ReplicaSet
|
|
deployment *appsv1.Deployment
|
|
}
|
|
|
|
// waitForResources polls to get the current status of all pods, PVCs, and Services
|
|
// until all are ready or a timeout is reached
|
|
func (c *Client) waitForResources(timeout time.Duration, created Result) error {
|
|
c.Log("beginning wait for %d resources with timeout of %v", len(created), timeout)
|
|
|
|
kcs, err := c.KubernetesClientSet()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return wait.Poll(2*time.Second, timeout, func() (bool, error) {
|
|
var (
|
|
pods []v1.Pod
|
|
services []v1.Service
|
|
pvc []v1.PersistentVolumeClaim
|
|
deployments []deployment
|
|
)
|
|
for _, v := range created[:0] {
|
|
switch value := asVersioned(v).(type) {
|
|
case *v1.ReplicationController:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *v1.Pod:
|
|
pod, err := kcs.CoreV1().Pods(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, *pod)
|
|
case *appsv1.Deployment:
|
|
currentDeployment, err := kcs.AppsV1().Deployments(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
// Find RS associated with deployment
|
|
newReplicaSet, err := deploymentutil.GetNewReplicaSet(currentDeployment, kcs.AppsV1())
|
|
if err != nil || newReplicaSet == nil {
|
|
return false, err
|
|
}
|
|
newDeployment := deployment{
|
|
newReplicaSet,
|
|
currentDeployment,
|
|
}
|
|
deployments = append(deployments, newDeployment)
|
|
case *appsv1beta1.Deployment:
|
|
currentDeployment, err := kcs.AppsV1().Deployments(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
// Find RS associated with deployment
|
|
newReplicaSet, err := deploymentutil.GetNewReplicaSet(currentDeployment, kcs.AppsV1())
|
|
if err != nil || newReplicaSet == nil {
|
|
return false, err
|
|
}
|
|
newDeployment := deployment{
|
|
newReplicaSet,
|
|
currentDeployment,
|
|
}
|
|
deployments = append(deployments, newDeployment)
|
|
case *appsv1beta2.Deployment:
|
|
currentDeployment, err := kcs.AppsV1().Deployments(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
// Find RS associated with deployment
|
|
newReplicaSet, err := deploymentutil.GetNewReplicaSet(currentDeployment, kcs.AppsV1())
|
|
if err != nil || newReplicaSet == nil {
|
|
return false, err
|
|
}
|
|
newDeployment := deployment{
|
|
newReplicaSet,
|
|
currentDeployment,
|
|
}
|
|
deployments = append(deployments, newDeployment)
|
|
case *extensions.Deployment:
|
|
currentDeployment, err := kcs.AppsV1().Deployments(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
// Find RS associated with deployment
|
|
newReplicaSet, err := deploymentutil.GetNewReplicaSet(currentDeployment, kcs.AppsV1())
|
|
if err != nil || newReplicaSet == nil {
|
|
return false, err
|
|
}
|
|
newDeployment := deployment{
|
|
newReplicaSet,
|
|
currentDeployment,
|
|
}
|
|
deployments = append(deployments, newDeployment)
|
|
case *extensions.DaemonSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1.DaemonSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1beta2.DaemonSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1.StatefulSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1beta1.StatefulSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1beta2.StatefulSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *extensions.ReplicaSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1beta2.ReplicaSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *appsv1.ReplicaSet:
|
|
list, err := getPods(kcs, value.Namespace, value.Spec.Selector.MatchLabels)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pods = append(pods, list...)
|
|
case *v1.PersistentVolumeClaim:
|
|
claim, err := kcs.CoreV1().PersistentVolumeClaims(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
pvc = append(pvc, *claim)
|
|
case *v1.Service:
|
|
svc, err := kcs.CoreV1().Services(value.Namespace).Get(value.Name, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
services = append(services, *svc)
|
|
}
|
|
}
|
|
isReady := c.podsReady(pods) && c.servicesReady(services) && c.volumesReady(pvc) && c.deploymentsReady(deployments)
|
|
return isReady, nil
|
|
})
|
|
}
|
|
|
|
func (c *Client) podsReady(pods []v1.Pod) bool {
|
|
for _, pod := range pods {
|
|
if !IsPodReady(&pod) {
|
|
c.Log("Pod is not ready: %s/%s", pod.GetNamespace(), pod.GetName())
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// IsPodReady returns true if a pod is ready; false otherwise.
|
|
func IsPodReady(pod *v1.Pod) bool {
|
|
for _, c := range pod.Status.Conditions {
|
|
if c.Type == v1.PodReady && c.Status == v1.ConditionTrue {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (c *Client) servicesReady(svc []v1.Service) bool {
|
|
for _, s := range svc {
|
|
// ExternalName Services are external to cluster so helm shouldn't be checking to see if they're 'ready' (i.e. have an IP Set)
|
|
if s.Spec.Type == v1.ServiceTypeExternalName {
|
|
continue
|
|
}
|
|
|
|
// Make sure the service is not explicitly set to "None" before checking the IP
|
|
if s.Spec.ClusterIP != v1.ClusterIPNone && !IsServiceIPSet(&s) {
|
|
c.Log("Service is not ready: %s/%s", s.GetNamespace(), s.GetName())
|
|
return false
|
|
}
|
|
// This checks if the service has a LoadBalancer and that balancer has an Ingress defined
|
|
if s.Spec.Type == v1.ServiceTypeLoadBalancer && s.Status.LoadBalancer.Ingress == nil {
|
|
c.Log("Service is not ready: %s/%s", s.GetNamespace(), s.GetName())
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// IsServiceIPSet aims to check if the service's ClusterIP is set or not
|
|
// the objective is not to perform validation here
|
|
func IsServiceIPSet(service *v1.Service) bool {
|
|
return service.Spec.ClusterIP != v1.ClusterIPNone && service.Spec.ClusterIP != ""
|
|
}
|
|
|
|
func (c *Client) volumesReady(vols []v1.PersistentVolumeClaim) bool {
|
|
for _, v := range vols {
|
|
if v.Status.Phase != v1.ClaimBound {
|
|
c.Log("PersistentVolumeClaim is not ready: %s/%s", v.GetNamespace(), v.GetName())
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (c *Client) deploymentsReady(deployments []deployment) bool {
|
|
for _, v := range deployments {
|
|
if !(v.replicaSets.Status.ReadyReplicas >= *v.deployment.Spec.Replicas-deploymentutil.MaxUnavailable(*v.deployment)) {
|
|
c.Log("Deployment is not ready: %s/%s", v.deployment.GetNamespace(), v.deployment.GetName())
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func getPods(client kubernetes.Interface, namespace string, selector map[string]string) ([]v1.Pod, error) {
|
|
list, err := client.CoreV1().Pods(namespace).List(metav1.ListOptions{
|
|
FieldSelector: fields.Everything().String(),
|
|
LabelSelector: labels.Set(selector).AsSelector().String(),
|
|
})
|
|
return list.Items, err
|
|
}
|