115 lines
3.0 KiB
Go
115 lines
3.0 KiB
Go
/*
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Copyright 2017 The Kubernetes 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 nfs
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import (
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"github.com/container-storage-interface/spec/lib/go/csi"
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"github.com/golang/glog"
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"k8s.io/utils/mount"
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)
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type nfsDriver struct {
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name string
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nodeID string
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version string
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endpoint string
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//ids *identityServer
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ns *nodeServer
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cap map[csi.VolumeCapability_AccessMode_Mode]bool
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cscap []*csi.ControllerServiceCapability
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}
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const (
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driverName = "nfs.csi.k8s.io"
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)
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var (
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version = "2.0.0"
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)
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func NewNFSdriver(nodeID, endpoint string) *nfsDriver {
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glog.Infof("Driver: %v version: %v", driverName, version)
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n := &nfsDriver{
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name: driverName,
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version: version,
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nodeID: nodeID,
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endpoint: endpoint,
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cap: map[csi.VolumeCapability_AccessMode_Mode]bool{},
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}
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vcam := []csi.VolumeCapability_AccessMode_Mode{
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csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY,
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csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY,
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csi.VolumeCapability_AccessMode_MULTI_NODE_SINGLE_WRITER,
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csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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}
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n.AddVolumeCapabilityAccessModes(vcam)
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// NFS plugin does not support ControllerServiceCapability now.
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// If support is added, it should set to appropriate
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// ControllerServiceCapability RPC types.
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n.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{csi.ControllerServiceCapability_RPC_UNKNOWN})
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return n
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}
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func NewNodeServer(n *nfsDriver, mounter mount.Interface) *nodeServer {
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return &nodeServer{
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Driver: n,
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mounter: mounter,
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}
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}
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func (n *nfsDriver) Run() {
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n.ns = NewNodeServer(n, mount.New(""))
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s := NewNonBlockingGRPCServer()
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s.Start(n.endpoint,
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NewDefaultIdentityServer(n),
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// NFS plugin has not implemented ControllerServer
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// using default controllerserver.
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NewControllerServer(n),
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n.ns)
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s.Wait()
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}
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func (n *nfsDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
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var vca []*csi.VolumeCapability_AccessMode
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for _, c := range vc {
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glog.Infof("Enabling volume access mode: %v", c.String())
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vca = append(vca, &csi.VolumeCapability_AccessMode{Mode: c})
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n.cap[c] = true
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}
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return vca
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}
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func (n *nfsDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
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var csc []*csi.ControllerServiceCapability
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for _, c := range cl {
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glog.Infof("Enabling controller service capability: %v", c.String())
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csc = append(csc, NewControllerServiceCapability(c))
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}
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n.cscap = csc
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return
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}
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