Initial commit

pkg/driver/utils.go

@@ -0,0 +1,113 @@
+/*
+Copyright 2021 Synology Inc.
+
+Copyright 2017 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 (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	log "github.com/sirupsen/logrus"
+	"github.com/kubernetes-csi/csi-lib-utils/protosanitizer"
+	"google.golang.org/grpc"
+	"k8s.io/utils/exec"
+	"k8s.io/mount-utils"
+)
+
+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 NewControllerServer(d *Driver) *controllerServer {
+	return &controllerServer{
+		Driver: d,
+		dsmService: d.DsmService,
+	}
+}
+
+func NewNodeServer(d *Driver) *nodeServer {
+	return &nodeServer{
+		Driver: d,
+		dsmService: d.DsmService,
+		Mounter: &mount.SafeFormatAndMount{
+			Interface: mount.New(""),
+			Exec: exec.New(),
+		},
+		Initiator: &initiatorDriver{
+			chapUser: "",
+			chapPassword: "",
+		},
+	}
+}
+
+func NewIdentityServer(d *Driver) *identityServer {
+	return &identityServer{
+		Driver: d,
+	}
+}
+
+func NewVolumeCapabilityAccessMode(mode csi.VolumeCapability_AccessMode_Mode) *csi.VolumeCapability_AccessMode {
+	return &csi.VolumeCapability_AccessMode{Mode: mode}
+}
+
+func NewControllerServiceCapability(cap csi.ControllerServiceCapability_RPC_Type) *csi.ControllerServiceCapability {
+	return &csi.ControllerServiceCapability{
+		Type: &csi.ControllerServiceCapability_Rpc{
+			Rpc: &csi.ControllerServiceCapability_RPC{
+				Type: cap,
+			},
+		},
+	}
+}
+
+func NewNodeServiceCapability(cap csi.NodeServiceCapability_RPC_Type) *csi.NodeServiceCapability {
+	return &csi.NodeServiceCapability{
+		Type: &csi.NodeServiceCapability_Rpc{
+			Rpc: &csi.NodeServiceCapability_RPC{
+				Type: cap,
+			},
+		},
+	}
+}
+
+func RunControllerandNodePublishServer(endpoint string, d *Driver, cs csi.ControllerServer, ns csi.NodeServer) {
+	ids := NewIdentityServer(d)
+
+	s := NewNonBlockingGRPCServer()
+	s.Start(endpoint, ids, cs, ns)
+}
+
+func logGRPC(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+	log.Infof("GRPC call: %s", info.FullMethod)
+	log.Infof("GRPC request: %s", protosanitizer.StripSecrets(req))
+	resp, err := handler(ctx, req)
+	if err != nil {
+		log.Errorf("GRPC error: %v", err)
+	} else {
+		log.Infof("GRPC response: %s", protosanitizer.StripSecrets(resp))
+	}
+	return resp, err
+}