mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-21 04:20:23 +00:00
141 lines
4.4 KiB
Go
141 lines
4.4 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package rbd
|
|
|
|
import (
|
|
csicommon "github.com/ceph/ceph-csi/pkg/csi-common"
|
|
"github.com/ceph/ceph-csi/pkg/util"
|
|
|
|
"github.com/container-storage-interface/spec/lib/go/csi"
|
|
"k8s.io/klog"
|
|
"k8s.io/kubernetes/pkg/util/mount"
|
|
"k8s.io/kubernetes/pkg/util/nsenter"
|
|
"k8s.io/utils/exec"
|
|
)
|
|
|
|
// PluginFolder defines the location of rbdplugin
|
|
const (
|
|
rbdDefaultAdminID = "admin"
|
|
rbdDefaultUserID = rbdDefaultAdminID
|
|
)
|
|
|
|
// PluginFolder defines the location of ceph plugin
|
|
var PluginFolder = "/var/lib/kubelet/plugins/"
|
|
|
|
// Driver contains the default identity,node and controller struct
|
|
type Driver struct {
|
|
cd *csicommon.CSIDriver
|
|
|
|
ids *IdentityServer
|
|
ns *NodeServer
|
|
cs *ControllerServer
|
|
}
|
|
|
|
var (
|
|
version = "1.0.0"
|
|
// confStore is the global config store
|
|
confStore *util.ConfigStore
|
|
)
|
|
|
|
// NewDriver returns new rbd driver
|
|
func NewDriver() *Driver {
|
|
return &Driver{}
|
|
}
|
|
|
|
// NewIdentityServer initialize a identity server for rbd CSI driver
|
|
func NewIdentityServer(d *csicommon.CSIDriver) *IdentityServer {
|
|
return &IdentityServer{
|
|
DefaultIdentityServer: csicommon.NewDefaultIdentityServer(d),
|
|
}
|
|
}
|
|
|
|
// NewControllerServer initialize a controller server for rbd CSI driver
|
|
func NewControllerServer(d *csicommon.CSIDriver, cachePersister util.CachePersister) *ControllerServer {
|
|
return &ControllerServer{
|
|
DefaultControllerServer: csicommon.NewDefaultControllerServer(d),
|
|
MetadataStore: cachePersister,
|
|
}
|
|
}
|
|
|
|
// NewNodeServer initialize a node server for rbd CSI driver.
|
|
func NewNodeServer(d *csicommon.CSIDriver, containerized bool) (*NodeServer, error) {
|
|
mounter := mount.New("")
|
|
if containerized {
|
|
ne, err := nsenter.NewNsenter(nsenter.DefaultHostRootFsPath, exec.New())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
mounter = mount.NewNsenterMounter("", ne)
|
|
}
|
|
return &NodeServer{
|
|
DefaultNodeServer: csicommon.NewDefaultNodeServer(d),
|
|
mounter: mounter,
|
|
}, nil
|
|
}
|
|
|
|
// Run start a non-blocking grpc controller,node and identityserver for
|
|
// rbd CSI driver which can serve multiple parallel requests
|
|
func (r *Driver) Run(driverName, nodeID, endpoint, configRoot string, containerized bool, cachePersister util.CachePersister) {
|
|
var err error
|
|
klog.Infof("Driver: %v version: %v", driverName, version)
|
|
|
|
// Initialize config store
|
|
confStore, err = util.NewConfigStore(configRoot)
|
|
if err != nil {
|
|
klog.Fatalln("Failed to initialize config store.")
|
|
}
|
|
|
|
// Initialize default library driver
|
|
r.cd = csicommon.NewCSIDriver(driverName, version, nodeID)
|
|
if r.cd == nil {
|
|
klog.Fatalln("Failed to initialize CSI Driver.")
|
|
}
|
|
r.cd.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
|
|
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
|
|
csi.ControllerServiceCapability_RPC_PUBLISH_UNPUBLISH_VOLUME,
|
|
csi.ControllerServiceCapability_RPC_LIST_VOLUMES,
|
|
csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT,
|
|
csi.ControllerServiceCapability_RPC_LIST_SNAPSHOTS,
|
|
csi.ControllerServiceCapability_RPC_CLONE_VOLUME,
|
|
})
|
|
|
|
// We only support the multi-writer option when using block, but it's a supported capability for the plugin in general
|
|
// In addition, we want to add the remaining modes like MULTI_NODE_READER_ONLY,
|
|
// MULTI_NODE_SINGLE_WRITER etc, but need to do some verification of RO modes first
|
|
// will work those as follow up features
|
|
r.cd.AddVolumeCapabilityAccessModes(
|
|
[]csi.VolumeCapability_AccessMode_Mode{csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
|
|
csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER})
|
|
|
|
// Create GRPC servers
|
|
r.ids = NewIdentityServer(r.cd)
|
|
r.ns, err = NewNodeServer(r.cd, containerized)
|
|
if err != nil {
|
|
klog.Fatalf("failed to start node server, err %v\n", err)
|
|
}
|
|
|
|
r.cs = NewControllerServer(r.cd, cachePersister)
|
|
|
|
if err = r.cs.LoadExDataFromMetadataStore(); err != nil {
|
|
klog.Fatalf("failed to load metadata from store, err %v\n", err)
|
|
}
|
|
|
|
s := csicommon.NewNonBlockingGRPCServer()
|
|
s.Start(endpoint, r.ids, r.cs, r.ns)
|
|
s.Wait()
|
|
}
|