forked from rook/rook
Arun Kumar Mohan
65d16bfc94
Fetched latest lib-bucket-provisioner changes as well. Signed-off-by: Arun Kumar Mohan <amohan@redhat.com>
82 lines
2.8 KiB
Go
82 lines
2.8 KiB
Go
/*
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Copyright 2018 The Rook 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 k8sutil
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import (
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"context"
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"fmt"
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apps "k8s.io/api/apps/v1"
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v1 "k8s.io/api/apps/v1"
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k8serrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes"
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)
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// CreateDaemonSet creates
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func CreateDaemonSet(name, namespace string, clientset kubernetes.Interface, ds *apps.DaemonSet) error {
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ctx := context.TODO()
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_, err := clientset.AppsV1().DaemonSets(namespace).Create(ctx, ds, metav1.CreateOptions{})
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if err != nil {
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if k8serrors.IsAlreadyExists(err) {
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_, err = clientset.AppsV1().DaemonSets(namespace).Update(ctx, ds, metav1.UpdateOptions{})
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}
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if err != nil {
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return fmt.Errorf("failed to start %s daemonset: %+v\n%+v", name, err, ds)
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}
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}
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return err
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}
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// DeleteDaemonset makes a best effort at deleting a daemonset and its pods, then waits for them to be deleted
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func DeleteDaemonset(clientset kubernetes.Interface, namespace, name string) error {
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ctx := context.TODO()
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deleteAction := func(options *metav1.DeleteOptions) error {
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return clientset.AppsV1().DaemonSets(namespace).Delete(ctx, name, *options)
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}
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getAction := func() error {
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_, err := clientset.AppsV1().DaemonSets(namespace).Get(ctx, name, metav1.GetOptions{})
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return err
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}
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return deleteResourceAndWait(namespace, name, "daemonset", deleteAction, getAction)
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}
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// AddRookVersionLabelToDaemonSet adds or updates a label reporting the Rook version which last
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// modified a DaemonSet.
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func AddRookVersionLabelToDaemonSet(d *v1.DaemonSet) {
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if d == nil {
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return
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}
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if d.Labels == nil {
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d.Labels = map[string]string{}
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}
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addRookVersionLabel(d.Labels)
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}
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// GetDaemonsets returns a list of daemonsets names labels matching a given selector
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// example of a label selector might be "app=rook-ceph-mon, mon!=b"
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// more: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
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func GetDaemonsets(clientset kubernetes.Interface, namespace, labelSelector string) (*apps.DaemonSetList, error) {
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listOptions := metav1.ListOptions{LabelSelector: labelSelector}
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ctx := context.TODO()
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daemonsets, err := clientset.AppsV1().DaemonSets(namespace).List(ctx, listOptions)
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if err != nil {
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return nil, fmt.Errorf("failed to list deployments with labelSelector %s: %v", labelSelector, err)
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}
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return daemonsets, nil
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}
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