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
82 lines
2.1 KiB
Go
82 lines
2.1 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 agent to manage Kubernetes storage attach events.
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package agent
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import (
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"github.com/coreos/pkg/capnslog"
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"github.com/rook/rook/pkg/agent/flexvolume"
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"github.com/rook/rook/pkg/agent/flexvolume/crd"
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"github.com/rook/rook/pkg/agent/flexvolume/manager/ceph"
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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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"github.com/rook/rook/pkg/operator/kit"
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)
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var logger = capnslog.NewPackageLogger("github.com/rook/rook", "rook-agent")
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// Agent represent all the references needed to manage a Rook agent
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type Agent struct {
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context *clusterd.Context
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}
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// New creates an Agent instance
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func New(context *clusterd.Context) *Agent {
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return &Agent{
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context: context,
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}
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}
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// Run the agent
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func (a *Agent) Run() error {
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volumeAttachmentClient, _, err := kit.NewHTTPClient(k8sutil.CustomResourceGroup, k8sutil.V1Alpha1, crd.SchemeBuilder)
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if err != nil {
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return fmt.Errorf("failed to create Volumeattach CRD client: %+v", err)
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}
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flexvolumeServer, err := flexvolume.NewFlexvolumeServer(
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a.context,
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volumeAttachmentClient,
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ceph.NewVolumeManager(a.context),
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)
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if err != nil {
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return err
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}
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flexvolumeServer.Start()
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, syscall.SIGTERM)
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for {
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select {
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case <-sigc:
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logger.Infof("shutdown signal received, exiting...")
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flexvolumeServer.Stop()
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return nil
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}
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}
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}
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