mirror of
https://github.com/ceph/ceph-csi.git
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3d3c029471
This commit adds nfs nodeserver capable of mounting nfs volumes, even with pod networking using NSenter design similar to rbd and cephfs. NodePublish, NodeUnpublish, NodeGetVolumeStats and NodeGetCapabilities have been implemented. The nodeserver implementation has been inspired from https://github.com/kubernetes-csi/csi-driver-nfs, which was previously used for mounted cephcsi exported nfs volumes. The current implementation is also backward compatible for the previously created PVCs. Signed-off-by: Rakshith R <rar@redhat.com>
94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
/*
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Copyright 2022 The Ceph-CSI Authors.
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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 driver
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import (
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csicommon "github.com/ceph/ceph-csi/internal/csi-common"
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"github.com/ceph/ceph-csi/internal/nfs/controller"
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"github.com/ceph/ceph-csi/internal/nfs/identity"
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"github.com/ceph/ceph-csi/internal/nfs/nodeserver"
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"github.com/ceph/ceph-csi/internal/util"
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"github.com/ceph/ceph-csi/internal/util/log"
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"github.com/container-storage-interface/spec/lib/go/csi"
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)
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// Driver contains the default identity and controller struct.
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type Driver struct{}
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// NewDriver returns new ceph driver.
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func NewDriver() *Driver {
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return &Driver{}
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}
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// Run start a non-blocking grpc controller,node and identityserver for
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// ceph CSI driver which can serve multiple parallel requests.
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func (fs *Driver) Run(conf *util.Config) {
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// Initialize default library driver
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cd := csicommon.NewCSIDriver(conf.DriverName, util.DriverVersion, conf.NodeID)
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if cd == nil {
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log.FatalLogMsg("failed to initialize CSI driver")
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}
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if conf.IsControllerServer || !conf.IsNodeServer {
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cd.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
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csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
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csi.ControllerServiceCapability_RPC_EXPAND_VOLUME,
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csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT,
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csi.ControllerServiceCapability_RPC_CLONE_VOLUME,
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})
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// VolumeCapabilities are validated by the CephFS Controller
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cd.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
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csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_MULTI_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_SINGLE_WRITER,
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})
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}
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// Create gRPC servers
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server := csicommon.NewNonBlockingGRPCServer()
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srv := csicommon.Servers{
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IS: identity.NewIdentityServer(cd),
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}
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switch {
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case conf.IsNodeServer:
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srv.NS = nodeserver.NewNodeServer(cd, conf.Vtype)
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case conf.IsControllerServer:
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srv.CS = controller.NewControllerServer(cd)
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default:
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srv.NS = nodeserver.NewNodeServer(cd, conf.Vtype)
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srv.CS = controller.NewControllerServer(cd)
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}
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server.Start(conf.Endpoint, conf.HistogramOption, srv, conf.EnableGRPCMetrics)
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if conf.EnableGRPCMetrics {
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log.WarningLogMsg("EnableGRPCMetrics is deprecated")
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go util.StartMetricsServer(conf)
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}
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if conf.EnableProfiling {
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if !conf.EnableGRPCMetrics {
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go util.StartMetricsServer(conf)
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}
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log.DebugLogMsg("Registering profiling handler")
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go util.EnableProfiling()
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}
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server.Wait()
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}
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