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daemonset.go
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daemonset.go
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package framework
import (
"context"
"encoding/json"
"errors"
"fmt"
"strings"
"time"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/wait"
v1apps "k8s.io/client-go/kubernetes/typed/apps/v1"
"k8s.io/kubectl/pkg/polymorphichelpers"
)
type DaemonSetClient struct {
f *Framework
v1apps.DaemonSetInterface
namespace string
}
func (f *Framework) DaemonSetClient() *DaemonSetClient {
return f.DaemonSetClientNS(f.Namespace.Name)
}
func (f *Framework) DaemonSetClientNS(namespace string) *DaemonSetClient {
return &DaemonSetClient{
f: f,
DaemonSetInterface: f.ClientSet.AppsV1().DaemonSets(namespace),
namespace: namespace,
}
}
func (c *DaemonSetClient) Get(name string) *appsv1.DaemonSet {
ds, err := c.DaemonSetInterface.Get(context.TODO(), name, metav1.GetOptions{})
ExpectNoError(err)
return ds
}
func (c *DaemonSetClient) GetPods(ds *appsv1.DaemonSet) (*corev1.PodList, error) {
podSelector, err := metav1.LabelSelectorAsSelector(ds.Spec.Selector)
if err != nil {
return nil, err
}
podListOptions := metav1.ListOptions{LabelSelector: podSelector.String()}
allPods, err := c.f.ClientSet.CoreV1().Pods(ds.Namespace).List(context.TODO(), podListOptions)
if err != nil {
return nil, err
}
ownedPods := &corev1.PodList{Items: make([]corev1.Pod, 0, len(allPods.Items))}
for i, pod := range allPods.Items {
controllerRef := metav1.GetControllerOf(&allPods.Items[i])
if controllerRef != nil && controllerRef.UID == ds.UID {
ownedPods.Items = append(ownedPods.Items, pod)
}
}
return ownedPods, nil
}
func (c *DaemonSetClient) GetPodOnNode(ds *appsv1.DaemonSet, node string) (*corev1.Pod, error) {
pods, err := c.GetPods(ds)
if err != nil {
return nil, err
}
for _, pod := range pods.Items {
if pod.Spec.NodeName == node {
return pod.DeepCopy(), nil
}
}
return nil, fmt.Errorf("pod for daemonset %s/%s on node %s not found", ds.Namespace, ds.Name, node)
}
func (c *DaemonSetClient) Patch(daemonset *appsv1.DaemonSet) *appsv1.DaemonSet {
modifiedBytes, err := json.Marshal(daemonset)
if err != nil {
Failf("failed to marshal modified DaemonSet: %v", err)
}
ExpectNoError(err)
var patchedDaemonSet *appsv1.DaemonSet
err = wait.PollUntilContextTimeout(context.Background(), 2*time.Second, timeout, true, func(ctx context.Context) (bool, error) {
daemonSet, err := c.DaemonSetInterface.Patch(ctx, daemonset.Name, types.MergePatchType, modifiedBytes, metav1.PatchOptions{}, "")
if err != nil {
return handleWaitingAPIError(err, false, "patch daemonset %s/%s", daemonset.Namespace, daemonset.Name)
}
patchedDaemonSet = daemonSet
return true, nil
})
if err == nil {
return patchedDaemonSet.DeepCopy()
}
if errors.Is(err, context.DeadlineExceeded) {
Failf("timed out while retrying to patch daemonset %s/%s", daemonset.Namespace, daemonset.Name)
}
Failf("error occurred while retrying to patch daemonset %s/%s: %v", daemonset.Namespace, daemonset.Name, err)
return nil
}
func (c *DaemonSetClient) PatchSync(modifiedDaemonset *appsv1.DaemonSet) *appsv1.DaemonSet {
daemonSet := c.Patch(modifiedDaemonset)
return c.RolloutStatus(daemonSet.Name)
}
func (c *DaemonSetClient) RolloutStatus(name string) *appsv1.DaemonSet {
var daemonSet *appsv1.DaemonSet
WaitUntil(2*time.Second, timeout, func(_ context.Context) (bool, error) {
var err error
daemonSet = c.Get(name)
unstructured := &unstructured.Unstructured{}
if unstructured.Object, err = runtime.DefaultUnstructuredConverter.ToUnstructured(daemonSet); err != nil {
return false, err
}
dsv := &polymorphichelpers.DaemonSetStatusViewer{}
msg, done, err := dsv.Status(unstructured, 0)
if err != nil {
return false, err
}
if done {
return true, nil
}
Logf(strings.TrimSpace(msg))
return false, nil
}, "")
return daemonSet
}