This commit is contained in:
Chris Lu 2020-03-19 02:59:45 -07:00
commit b21fb2e2b6
11 changed files with 671 additions and 0 deletions

2
.gitignore vendored Normal file
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*.iml

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package main
import (
"flag"
"fmt"
"log"
"os"
"github.com/seaweedfs/seaweedfs-csi-driver/pkg/driver"
)
var (
endpoint = flag.String("endpoint", "unix://tmp/seaweedfs-csi.sock", "CSI endpoint")
nodeID = flag.String("nodeid", "", "node id")
version = flag.Bool("version", false, "Print the version and exit.")
)
func main() {
flag.Parse()
if *version {
info, err := driver.GetVersionJSON()
if err != nil {
log.Fatalln(err.Error())
}
fmt.Println(info)
os.Exit(0)
}
drv := driver.NewSeaweedFsDriver(*nodeID, *endpoint)
drv.Run()
}

11
go.mod Normal file
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module github.com/seaweedfs/seaweedfs-csi-driver
go 1.14
require (
github.com/container-storage-interface/spec v1.2.0
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
golang.org/x/net v0.0.0-20200301022130-244492dfa37a
google.golang.org/grpc v1.28.0
k8s.io/utils v0.0.0-20200318093247-d1ab8797c558
)

64
go.sum Normal file
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cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/container-storage-interface/spec v1.2.0 h1:bD9KIVgaVKKkQ/UbVUY9kCaH/CJbhNxe0eeB4JeJV2s=
github.com/container-storage-interface/spec v1.2.0/go.mod h1:6URME8mwIBbpVyZV93Ce5St17xBiQJQY67NDsuohiy4=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/spf13/afero v1.2.2/go.mod h1:9ZxEEn6pIJ8Rxe320qSDBk6AsU0r9pR7Q4OcevTdifk=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20200301022130-244492dfa37a h1:GuSPYbZzB5/dcLNCwLQLsg3obCJtX9IJhpXkvY7kzk0=
golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 h1:gSJIx1SDwno+2ElGhA4+qG2zF97qiUzTM+rQ0klBOcE=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.28.0 h1:bO/TA4OxCOummhSf10siHuG7vJOiwh7SpRpFZDkOgl4=
google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
k8s.io/klog v0.3.0 h1:0VPpR+sizsiivjIfIAQH/rl8tan6jvWkS7lU+0di3lE=
k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
k8s.io/utils v0.0.0-20200318093247-d1ab8797c558 h1:yaUqfD7/dWM081lhpYGB+Wi4awn61TY7WcAc6usJMR8=
k8s.io/utils v0.0.0-20200318093247-d1ab8797c558/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=

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package driver
import (
"context"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/glog"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
type ControllerServer struct {
Driver *SeaweedFsDriver
}
var _ = csi.ControllerServer(&ControllerServer{})
func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) {
volumeId := req.GetName()
params := req.GetParameters()
glog.V(4).Info("params:%v", params)
capacity := req.GetCapacityRange().GetRequiredBytes()
capacityGB := capacity >> 30
if capacityGB == 0 {
return nil, status.Error(codes.InvalidArgument, "required bytes less than 1GB")
}
seaweedFsVolumeCount := capacityGB / 30
if seaweedFsVolumeCount == 0 {
seaweedFsVolumeCount = 1
}
err := cs.Driver.createBucket(volumeId, int(seaweedFsVolumeCount))
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
VolumeId: volumeId,
CapacityBytes: 0, // seaweedFsVolumeCount * 1024 * 1024 * 30,
VolumeContext: params,
},
}, err
}
func (cs *ControllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error) {
volumeId := req.VolumeId
err := cs.Driver.deleteBucket(volumeId)
return &csi.DeleteVolumeResponse{}, err
}
func (cs *ControllerServer) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) ControllerUnpublishVolume(ctx context.Context, req *csi.ControllerUnpublishVolumeRequest) (*csi.ControllerUnpublishVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) ValidateVolumeCapabilities(ctx context.Context, req *csi.ValidateVolumeCapabilitiesRequest) (*csi.ValidateVolumeCapabilitiesResponse, error) {
return &csi.ValidateVolumeCapabilitiesResponse{
Confirmed: &csi.ValidateVolumeCapabilitiesResponse_Confirmed{
VolumeContext: req.GetVolumeContext(),
VolumeCapabilities: req.GetVolumeCapabilities(),
Parameters: req.GetParameters(),
},
}, nil
}
func (cs *ControllerServer) ListVolumes(ctx context.Context, req *csi.ListVolumesRequest) (*csi.ListVolumesResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) GetCapacity(ctx context.Context, req *csi.GetCapacityRequest) (*csi.GetCapacityResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
// ControllerGetCapabilities implements the default GRPC callout.
// Default supports all capabilities
func (cs *ControllerServer) ControllerGetCapabilities(ctx context.Context, req *csi.ControllerGetCapabilitiesRequest) (*csi.ControllerGetCapabilitiesResponse, error) {
glog.V(5).Infof("Using default ControllerGetCapabilities")
return &csi.ControllerGetCapabilitiesResponse{
Capabilities: cs.Driver.cscap,
}, nil
}
func (cs *ControllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateSnapshotRequest) (*csi.CreateSnapshotResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteSnapshotRequest) (*csi.DeleteSnapshotResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) ListSnapshots(ctx context.Context, req *csi.ListSnapshotsRequest) (*csi.ListSnapshotsResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (cs *ControllerServer) ControllerExpandVolume(ctx context.Context, req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}

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pkg/driver/driver.go Normal file
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package driver
import (
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/glog"
)
const (
driverName = "csi.seaweedfs.com"
)
var (
version = "1.0.0-rc1"
)
type SeaweedFsDriver struct {
name string
nodeID string
version string
endpoint string
vcap []*csi.VolumeCapability_AccessMode
cscap []*csi.ControllerServiceCapability
filer string
pathOnFiler string
}
func NewSeaweedFsDriver(nodeID, endpoint string) *SeaweedFsDriver {
glog.Infof("Driver: %v version: %v", driverName, version)
n := &SeaweedFsDriver{
endpoint: endpoint,
nodeID: nodeID,
name: driverName,
version: version,
}
n.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
})
n.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
})
return n
}
func NewNodeServer(n *SeaweedFsDriver) *NodeServer {
return &NodeServer{
Driver: n,
}
}
func (n *SeaweedFsDriver) Run() {
s := NewNonBlockingGRPCServer()
s.Start(n.endpoint,
NewIdentityServer(n),
NewControllerServer(n),
NewNodeServer(n))
s.Wait()
}
func (n *SeaweedFsDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
var vca []*csi.VolumeCapability_AccessMode
for _, c := range vc {
glog.Infof("Enabling volume access mode: %v", c.String())
vca = append(vca, &csi.VolumeCapability_AccessMode{Mode: c})
}
n.vcap = vca
return vca
}
func (n *SeaweedFsDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
var csc []*csi.ControllerServiceCapability
for _, c := range cl {
glog.Infof("Enabling controller service capability: %v", c.String())
csc = append(csc, NewControllerServiceCapability(c))
}
n.cscap = csc
return
}
func (n *SeaweedFsDriver) createBucket(volumeId string, seaweedFsVolumeCount int) error {
// TODO implement seaweedFsVolumeCount later
return nil
}
func (n *SeaweedFsDriver) deleteBucket(volumeId string) error {
return nil
}
func (n *SeaweedFsDriver) mount(source string, targetPath string) error {
return nil
}
func (n *SeaweedFsDriver) unmount(targetPath string) error {
return nil
}

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package driver
import (
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/glog"
"golang.org/x/net/context"
)
type IdentityServer struct {
Driver *SeaweedFsDriver
}
var _ = csi.IdentityServer(&IdentityServer{})
func (ids *IdentityServer) GetPluginInfo(ctx context.Context, req *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error) {
return &csi.GetPluginInfoResponse{
Name: ids.Driver.name,
VendorVersion: ids.Driver.version,
}, nil
}
func (ids *IdentityServer) Probe(ctx context.Context, req *csi.ProbeRequest) (*csi.ProbeResponse, error) {
return &csi.ProbeResponse{}, nil
}
func (ids *IdentityServer) GetPluginCapabilities(ctx context.Context, req *csi.GetPluginCapabilitiesRequest) (*csi.GetPluginCapabilitiesResponse, error) {
glog.V(4).Infof("Using default capabilities")
return &csi.GetPluginCapabilitiesResponse{
Capabilities: []*csi.PluginCapability{
{
Type: &csi.PluginCapability_Service_{
Service: &csi.PluginCapability_Service{
Type: csi.PluginCapability_Service_CONTROLLER_SERVICE,
},
},
},
/* // TODO add later
{
Type: &csi.PluginCapability_VolumeExpansion_{
VolumeExpansion: &csi.PluginCapability_VolumeExpansion{
Type: csi.PluginCapability_VolumeExpansion_ONLINE,
},
},
},
*/
},
}, nil
}

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pkg/driver/nodeserver.go Normal file
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package driver
import (
"context"
"fmt"
"os"
"strings"
"github.com/golang/glog"
"github.com/container-storage-interface/spec/lib/go/csi"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/utils/mount"
)
type NodeServer struct {
Driver *SeaweedFsDriver
mounter mount.Interface
}
var _ = csi.NodeServer(&NodeServer{})
func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
// mount the fs here
targetPath := req.GetTargetPath()
mo := req.GetVolumeCapability().GetMount().GetMountFlags()
if req.GetReadonly() {
mo = append(mo, "ro")
}
source := fmt.Sprintf("%s%s", ns.Driver.filer, ns.Driver.pathOnFiler)
err := ns.Driver.mount(source, targetPath)
if err != nil {
if os.IsPermission(err) {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
if strings.Contains(err.Error(), "invalid argument") {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
return nil, status.Error(codes.Internal, err.Error())
}
return &csi.NodePublishVolumeResponse{}, nil
}
func (ns *NodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
targetPath := req.GetTargetPath()
err := ns.Driver.unmount(targetPath)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
err = os.Remove(targetPath)
if err != nil && !os.IsNotExist(err) {
return nil, status.Error(codes.Internal, err.Error())
}
return &csi.NodeUnpublishVolumeResponse{}, nil
}
func (ns *NodeServer) NodeGetInfo(ctx context.Context, req *csi.NodeGetInfoRequest) (*csi.NodeGetInfoResponse, error) {
glog.V(5).Infof("Using default NodeGetInfo")
return &csi.NodeGetInfoResponse{
NodeId: ns.Driver.nodeID,
}, nil
}
func (ns *NodeServer) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCapabilitiesRequest) (*csi.NodeGetCapabilitiesResponse, error) {
glog.V(5).Infof("Using default NodeGetCapabilities")
return &csi.NodeGetCapabilitiesResponse{
Capabilities: []*csi.NodeServiceCapability{
{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_UNKNOWN,
},
},
},
},
}, nil
}
func (ns *NodeServer) NodeGetVolumeStats(ctx context.Context, in *csi.NodeGetVolumeStatsRequest) (*csi.NodeGetVolumeStatsResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (ns *NodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstageVolumeRequest) (*csi.NodeUnstageVolumeResponse, error) {
return &csi.NodeUnstageVolumeResponse{}, nil
}
func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVolumeRequest) (*csi.NodeStageVolumeResponse, error) {
return &csi.NodeStageVolumeResponse{}, nil
}
func (ns *NodeServer) NodeExpandVolume(ctx context.Context, req *csi.NodeExpandVolumeRequest) (*csi.NodeExpandVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}

96
pkg/driver/server.go Normal file
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package driver
import (
"net"
"os"
"sync"
"github.com/golang/glog"
"google.golang.org/grpc"
"github.com/container-storage-interface/spec/lib/go/csi"
)
// Defines Non blocking GRPC server interfaces
type NonBlockingGRPCServer interface {
// Start services at the endpoint
Start(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer)
// Waits for the service to stop
Wait()
// Stops the service gracefully
Stop()
// Stops the service forcefully
ForceStop()
}
func NewNonBlockingGRPCServer() NonBlockingGRPCServer {
return &nonBlockingGRPCServer{}
}
// NonBlocking server
type nonBlockingGRPCServer struct {
wg sync.WaitGroup
server *grpc.Server
}
func (s *nonBlockingGRPCServer) Start(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) {
s.wg.Add(1)
go s.serve(endpoint, ids, cs, ns)
return
}
func (s *nonBlockingGRPCServer) Wait() {
s.wg.Wait()
}
func (s *nonBlockingGRPCServer) Stop() {
s.server.GracefulStop()
}
func (s *nonBlockingGRPCServer) ForceStop() {
s.server.Stop()
}
func (s *nonBlockingGRPCServer) serve(endpoint string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer) {
proto, addr, err := ParseEndpoint(endpoint)
if err != nil {
glog.Fatal(err.Error())
}
if proto == "unix" {
addr = "/" + addr
if err := os.Remove(addr); err != nil && !os.IsNotExist(err) {
glog.Fatalf("Failed to remove %s, error: %s", addr, err.Error())
}
}
listener, err := net.Listen(proto, addr)
if err != nil {
glog.Fatalf("Failed to listen: %v", err)
}
opts := []grpc.ServerOption{
grpc.UnaryInterceptor(logGRPC),
}
server := grpc.NewServer(opts...)
s.server = server
if ids != nil {
csi.RegisterIdentityServer(server, ids)
}
if cs != nil {
csi.RegisterControllerServer(server, cs)
}
if ns != nil {
csi.RegisterNodeServer(server, ns)
}
glog.Infof("Listening for connections on address: %#v", listener.Addr())
server.Serve(listener)
}

52
pkg/driver/utils.go Normal file
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package driver
import (
"fmt"
"strings"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/golang/glog"
"golang.org/x/net/context"
"google.golang.org/grpc"
)
func NewIdentityServer(d *SeaweedFsDriver) *IdentityServer {
return &IdentityServer{
Driver: d,
}
}
func NewControllerServer(d *SeaweedFsDriver) *ControllerServer {
return &ControllerServer{
Driver: d,
}
}
func NewControllerServiceCapability(cap csi.ControllerServiceCapability_RPC_Type) *csi.ControllerServiceCapability {
return &csi.ControllerServiceCapability{
Type: &csi.ControllerServiceCapability_Rpc{
Rpc: &csi.ControllerServiceCapability_RPC{
Type: cap,
},
},
}
}
func ParseEndpoint(ep string) (string, string, error) {
if strings.HasPrefix(strings.ToLower(ep), "unix://") || strings.HasPrefix(strings.ToLower(ep), "tcp://") {
s := strings.SplitN(ep, "://", 2)
if s[1] != "" {
return s[0], s[1], nil
}
}
return "", "", fmt.Errorf("Invalid endpoint: %v", ep)
}
func logGRPC(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
glog.V(3).Infof("GRPC call: %s", info.FullMethod)
resp, err := handler(ctx, req)
if err != nil {
glog.Errorf("GRPC error: %v", err)
}
return resp, err
}

53
pkg/driver/version.go Normal file
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/*
Copyright 2019 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 driver
import (
"encoding/json"
"fmt"
"runtime"
)
var (
driverVersion string
gitCommit string
buildDate string
)
type VersionInfo struct {
DriverVersion string `json:"driverVersion"`
GitCommit string `json:"gitCommit"`
BuildDate string `json:"buildDate"`
GoVersion string `json:"goVersion"`
Compiler string `json:"compiler"`
Platform string `json:"platform"`
}
func GetVersion() VersionInfo {
return VersionInfo{
DriverVersion: driverVersion,
GitCommit: gitCommit,
BuildDate: buildDate,
GoVersion: runtime.Version(),
Compiler: runtime.Compiler,
Platform: fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH),
}
}
func GetVersionJSON() (string, error) {
info := GetVersion()
marshalled, err := json.MarshalIndent(&info, "", " ")
if err != nil {
return "", err
}
return string(marshalled), nil
}