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/
pods.go
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/
pods.go
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package util
import (
"strings"
"time"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
kutilerrors "k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
e2e "k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/framework/pod"
)
// WaitForNoPodsAvailable waits until there are no pods in the
// given namespace
func WaitForNoPodsAvailable(oc *CLI) error {
return wait.Poll(200*time.Millisecond, 3*time.Minute, func() (bool, error) {
pods, err := oc.KubeClient().CoreV1().Pods(oc.Namespace()).List(metav1.ListOptions{})
if err != nil {
return false, err
}
return len(pods.Items) == 0, nil
})
}
// RemovePodsWithPrefixes deletes pods whose name begins with the
// supplied prefixes
func RemovePodsWithPrefixes(oc *CLI, prefixes ...string) error {
e2e.Logf("Removing pods from namespace %s with prefix(es): %v", oc.Namespace(), prefixes)
pods, err := oc.AdminKubeClient().CoreV1().Pods(oc.Namespace()).List(metav1.ListOptions{})
if err != nil {
return err
}
errs := []error{}
for _, prefix := range prefixes {
for _, pod := range pods.Items {
if strings.HasPrefix(pod.Name, prefix) {
if err := oc.AdminKubeClient().CoreV1().Pods(oc.Namespace()).Delete(pod.Name, &metav1.DeleteOptions{}); err != nil {
e2e.Logf("unable to remove pod %s/%s", oc.Namespace(), pod.Name)
errs = append(errs, err)
}
}
}
}
if len(errs) > 0 {
return kutilerrors.NewAggregate(errs)
}
return nil
}
// CreateCentosExecPodOrFail creates a centos:7 pause pod used as a vessel for kubectl exec commands.
// Pod name is uniquely generated.
func CreateCentosExecPodOrFail(client kubernetes.Interface, ns, generateName string, tweak func(*v1.Pod)) *v1.Pod {
return pod.CreateExecPodOrFail(client, ns, generateName, func(pod *v1.Pod) {
pod.Spec.Containers[0].Image = "centos:7"
pod.Spec.Containers[0].Command = []string{"sh", "-c", "trap exit TERM; while true; do sleep 5; done"}
pod.Spec.Containers[0].Args = nil
if tweak != nil {
tweak(pod)
}
})
}