Fixed the issue that the pod could not start mounting pvc when the prefix parameter contained a slash "/"

.gitignore

@@ -10,3 +10,4 @@
 /Godeps/_workspace
 vendor
 vendor.*
+.idea

cmd/s3driver/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.16-alpine as gobuild
+FROM golang:1.16-alpine AS gobuild
 
 WORKDIR /build
 ADD . /build

cmd/s3driver/Dockerfile.full

@@ -1,12 +1,12 @@
-FROM golang:1.16-alpine as gobuild
+FROM golang:1.16-alpine AS gobuild
 
 WORKDIR /build
 ADD . /build
 
 RUN go get -d -v ./...
 RUN CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' -o ./s3driver ./cmd/s3driver
 
-FROM debian:buster-slim as s3backer
+FROM debian:buster-slim AS s3backer
 ARG S3BACKER_VERSION=1.5.0
 
 RUN apt-get update && apt-get install -y \

pkg/driver/controllerserver.go

@@ -265,7 +265,7 @@ func sanitizeVolumeID(volumeID string) string {
 func volumeIDToBucketPrefix(volumeID string) (string, string) {
 	// if the volumeID has a slash in it, this volume is
 	// stored under a certain prefix within the bucket.
-	splitVolumeID := strings.Split(volumeID, "/")
+	splitVolumeID := strings.SplitN(volumeID, "/", 2)
 	if len(splitVolumeID) > 1 {
 		return splitVolumeID[0], splitVolumeID[1]
 	}

pkg/mounter/mounter.go

@@ -68,7 +68,7 @@ func fuseMount(path string, command string, args []string) error {
 	cmd.Stderr = os.Stderr
 
 	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("Error fuseMount command: %s\nargs: %s\noutput", command, args)
+		return fmt.Errorf("Error fuseMount command: %s\nargs: %s\noutput err %v", command, args, err)
 	}
 
 	return waitForMount(path, 10*time.Second)