forked from rook/rook
103 lines
3.5 KiB
Go
103 lines
3.5 KiB
Go
/*
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Copyright 2017 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 attachment
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import (
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"fmt"
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"github.com/coreos/pkg/capnslog"
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rookalpha "github.com/rook/rook/pkg/apis/rook.io/v1alpha1"
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"github.com/rook/rook/pkg/clusterd"
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"github.com/rook/rook/pkg/operator/k8sutil"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/util/version"
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)
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var logger = capnslog.NewPackageLogger("github.com/rook/rook", "rook-agent-crd")
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const (
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serverVersionV170 = "v1.7.0"
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)
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// Attachment handles custom resource VolumeAttachment storage operations.
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// This interface goes away when there is no longer a need to support TPRs since
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// we can call the RookClientset directly.
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type Attachment interface {
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Create(volumeAttachment *rookalpha.VolumeAttachment) error
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Get(namespace, name string) (*rookalpha.VolumeAttachment, error)
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List(namespace string) (*rookalpha.VolumeAttachmentList, error)
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Update(volumeAttachment *rookalpha.VolumeAttachment) error
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Delete(namespace, name string) error
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}
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// CRD is a controller to manage VolumeAttachment CRD objects
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type crd struct {
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context *clusterd.Context
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}
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// CreateController creates a new controller for volume attachment
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func New(context *clusterd.Context) (Attachment, error) {
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// CRD is available on v1.7.0. TPR became deprecated on v1.7.0
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// Remove this code when TPR is not longer supported
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kubeVersion, err := k8sutil.GetK8SVersion(context.Clientset)
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if err != nil {
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return nil, fmt.Errorf("Error getting server version: %v", err)
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}
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if kubeVersion.AtLeast(version.MustParseSemantic(serverVersionV170)) {
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return &crd{
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context: context,
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}, nil
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}
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return &tpr{
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clientset: context.Clientset,
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}, nil
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}
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// Get queries the VolumeAttachment CRD from Kubernetes
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func (c *crd) Get(namespace, name string) (*rookalpha.VolumeAttachment, error) {
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return c.context.RookClientset.Rook().VolumeAttachments(namespace).Get(name, metav1.GetOptions{})
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}
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// List lists all the volume attachment CRD resources in the given namespace
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func (c *crd) List(namespace string) (*rookalpha.VolumeAttachmentList, error) {
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return c.context.RookClientset.Rook().VolumeAttachments(namespace).List(metav1.ListOptions{})
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}
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// Create creates the volume attach CRD resource in Kubernetes
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func (c *crd) Create(volumeAttachment *rookalpha.VolumeAttachment) error {
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_, err := c.context.RookClientset.Rook().VolumeAttachments(volumeAttachment.Namespace).Create(volumeAttachment)
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return err
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}
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// Update updates VolumeAttachment resource
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func (c *crd) Update(volumeAttachment *rookalpha.VolumeAttachment) error {
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_, err := c.context.RookClientset.Rook().VolumeAttachments(volumeAttachment.Namespace).Update(volumeAttachment)
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if err != nil {
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logger.Errorf("failed to update VolumeAttachment CRD. %+v", err)
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return err
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}
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logger.Infof("updated Volumeattach CRD %s", volumeAttachment.ObjectMeta.Name)
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return nil
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}
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// Delete deletes the volume attach CRD resource in Kubernetes
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func (c *crd) Delete(namespace, name string) error {
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return c.context.RookClientset.Rook().VolumeAttachments(namespace).Delete(name, &metav1.DeleteOptions{})
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}
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