mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 12:20:24 +00:00
141 lines
3.9 KiB
Go
141 lines
3.9 KiB
Go
/*
|
|
Copyright 2018 The Ceph-CSI 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 cephfs
|
|
|
|
import (
|
|
"k8s.io/klog"
|
|
|
|
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"
|
|
)
|
|
|
|
const (
|
|
|
|
// version of ceph driver
|
|
version = "1.0.0"
|
|
)
|
|
|
|
// 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
|
|
|
|
is *IdentityServer
|
|
ns *NodeServer
|
|
cs *ControllerServer
|
|
}
|
|
|
|
var (
|
|
// DefaultVolumeMounter for mounting volumes
|
|
DefaultVolumeMounter string
|
|
)
|
|
|
|
// NewDriver returns new ceph driver
|
|
func NewDriver() *Driver {
|
|
return &Driver{}
|
|
}
|
|
|
|
// NewIdentityServer initialize a identity server for ceph CSI driver
|
|
func NewIdentityServer(d *csicommon.CSIDriver) *IdentityServer {
|
|
return &IdentityServer{
|
|
DefaultIdentityServer: csicommon.NewDefaultIdentityServer(d),
|
|
}
|
|
}
|
|
|
|
// NewControllerServer initialize a controller server for ceph 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 ceph CSI driver.
|
|
func NewNodeServer(d *csicommon.CSIDriver) *NodeServer {
|
|
return &NodeServer{
|
|
DefaultNodeServer: csicommon.NewDefaultNodeServer(d),
|
|
}
|
|
}
|
|
|
|
// Run start a non-blocking grpc controller,node and identityserver for
|
|
// ceph CSI driver which can serve multiple parallel requests
|
|
func (fs *Driver) Run(driverName, nodeID, endpoint, volumeMounter, mountCacheDir string, cachePersister util.CachePersister) {
|
|
klog.Infof("Driver: %v version: %v", driverName, version)
|
|
|
|
// Configuration
|
|
|
|
if err := loadAvailableMounters(); err != nil {
|
|
klog.Fatalf("cephfs: failed to load ceph mounters: %v", err)
|
|
}
|
|
|
|
if volumeMounter != "" {
|
|
if err := validateMounter(volumeMounter); err != nil {
|
|
klog.Fatalln(err)
|
|
} else {
|
|
DefaultVolumeMounter = volumeMounter
|
|
}
|
|
} else {
|
|
// Pick the first available mounter as the default one.
|
|
// The choice is biased towards "fuse" in case both
|
|
// ceph fuse and kernel mounters are available.
|
|
DefaultVolumeMounter = availableMounters[0]
|
|
}
|
|
|
|
klog.Infof("cephfs: setting default volume mounter to %s", DefaultVolumeMounter)
|
|
|
|
if err := writeCephConfig(); err != nil {
|
|
klog.Fatalf("failed to write ceph configuration file: %v", err)
|
|
}
|
|
|
|
initVolumeMountCache(driverName, mountCacheDir, cachePersister)
|
|
if mountCacheDir != "" {
|
|
if err := remountCachedVolumes(); err != nil {
|
|
klog.Warningf("failed to remount cached volumes: %v", err)
|
|
//ignore remount fail
|
|
}
|
|
}
|
|
// Initialize default library driver
|
|
|
|
fs.cd = csicommon.NewCSIDriver(driverName, version, nodeID)
|
|
if fs.cd == nil {
|
|
klog.Fatalln("failed to initialize CSI driver")
|
|
}
|
|
|
|
fs.cd.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
|
|
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
|
|
})
|
|
|
|
fs.cd.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
|
|
csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
|
|
})
|
|
|
|
// Create gRPC servers
|
|
|
|
fs.is = NewIdentityServer(fs.cd)
|
|
fs.ns = NewNodeServer(fs.cd)
|
|
|
|
fs.cs = NewControllerServer(fs.cd, cachePersister)
|
|
|
|
server := csicommon.NewNonBlockingGRPCServer()
|
|
server.Start(endpoint, fs.is, fs.cs, fs.ns)
|
|
server.Wait()
|
|
}
|