Steve Leon
b4279e06fb
- Operator is deployed under namespace rook-system - Operator deploys rook-agent on all nodes as daemonset also on rook-system - Rook-agent installs flexvolume driver on hosts - Rook-agent listens on unix socket for driver requests - Rook-agent perform attach/detach on its node - Rook-agent creates/delete CRD volumeattach objects - Added fencing to support ROX and RWO - Added unit and integration tests - Updated examples and docks fixes #432
106 lines
3.1 KiB
Go
106 lines
3.1 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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Some of the code below came from https://github.com/coreos/etcd-operator
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which also has the apache 2.0 license.
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*/
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package crd
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import (
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"github.com/coreos/pkg/capnslog"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/rest"
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)
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var logger = capnslog.NewPackageLogger("github.com/rook/rook", "rook-agent-crd")
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// VolumeAttachmentCRDController is a controller to manage VolumeAttachment CRD objects
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type VolumeAttachmentCRDController struct {
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client rest.Interface
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}
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// New creates a new VolumeAttachmentCRDController controller
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func New(client rest.Interface) *VolumeAttachmentCRDController {
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return &VolumeAttachmentCRDController{
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client: client,
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}
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}
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// NewVolumeAttachment creates a reference of a Volumeattach CRD object
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func NewVolumeAttachment(name, namespace, node, podNamespace, podName, mountDir string, readOnly bool) VolumeAttachment {
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volumeAttachmentObj := VolumeAttachment{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: namespace,
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},
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Attachments: []Attachment{
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{
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Node: node,
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PodNamespace: podNamespace,
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PodName: podName,
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MountDir: mountDir,
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ReadOnly: readOnly,
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},
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},
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}
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return volumeAttachmentObj
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}
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// Get queries the VolumeAttachment CRD from Kubernetes
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func (c *VolumeAttachmentCRDController) Get(namespace, name string) (VolumeAttachment, error) {
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var result VolumeAttachment
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return result, c.client.Get().
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Resource(CustomResourceNamePlural).
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Namespace(namespace).
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Name(name).
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Do().Into(&result)
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}
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// Create creates the volume attach CRD resource in Kubernetes
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func (c *VolumeAttachmentCRDController) Create(volumeAttachment VolumeAttachment) error {
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return c.client.Post().
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Resource(CustomResourceNamePlural).
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Namespace(volumeAttachment.Namespace).
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Body(&volumeAttachment).
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Do().Error()
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}
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// Update updates VolumeAttachment resource
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func (c *VolumeAttachmentCRDController) Update(volumeAttachment VolumeAttachment) error {
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err := c.client.Put().
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Name(volumeAttachment.ObjectMeta.Name).
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Namespace(volumeAttachment.ObjectMeta.Namespace).
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Resource(CustomResourceNamePlural).
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Body(&volumeAttachment).
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Do().Error()
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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 *VolumeAttachmentCRDController) Delete(namespace, name string) error {
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return c.client.Delete().
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Resource(CustomResourceNamePlural).
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Namespace(namespace).
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Name(name).
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Do().Error()
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}
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