fix: rename gcsfuse script (GoogleCloudPlatform#3369)

* run node index.js in bg; rename gcsfuse sh script

* update name in dockerfile too

run/filesystem/gcsfuse.Dockerfile

@@ -48,12 +48,12 @@ RUN npm install --only=production
 COPY . ./
 
 # Ensure the script is executable
-RUN chmod +x /app/gcsfuse.run.sh
+RUN chmod +x /app/gcsfuse_run.sh
 
 # Use tini to manage zombie processes and signal forwarding
 # https://github.com/krallin/tini
 ENTRYPOINT ["/usr/bin/tini", "--"]
 
 # Pass the wrapper script as arguments to tini
-CMD ["/app/gcsfuse.run.sh"]
+CMD ["/app/gcsfuse_run.sh"]
 # [END cloudrun_fuse_dockerfile]

run/filesystem/run.sh

@@ -25,7 +25,7 @@ mount -o nolock $FILESTORE_IP_ADDRESS:/$FILE_SHARE_NAME $MNT_DIR
 echo "Mounting completed."
 
 # Start the application
-node index.js
+node index.js &
 
 # Exit immediately when one of the background processes terminate.
 wait -n