Node 0.11.16 ignores SIGTERM when run inside Docker

[skozin]

Dockerfile:

FROM node:0.11.16
WORKDIR /app
COPY index.js /app/
CMD ["node", "index.js"]

index.js:

console.log('started');
process.stdin.resume();

This app will ignore TERM and INT signals, so it cannot be terminated using Ctrl+C or docker stop.

Other configurations that I have tested:

• Node.js v0.11.16 in Docker, built from source (Alpine Linux, musl-libc): doesn't exit;
• Node.js v0.11.16 in Mac OS X, outside of Docker: correctly exits;
• Node.js v0.10.36, both in Docker and on Mac OS X: correctly exits.

It appears that Node actually recieves and handles these signals, but for some reason doesn't perform the default action. This can be verified by adding signal listeners in index.js:

console.log('started');

exitOnSignal('SIGINT');
exitOnSignal('SIGTERM');
process.stdin.resume();

function exitOnSignal(signal) {
  process.on(signal, function() {
    console.log('\ncaught ' + signal + ', exiting');
    process.exit(1);
  });
}

It correctly prints Caught SIG{INT,TERM} and exits.

[skozin]

This is most likely an issue in Node.js itself and not in this image. I will open an issue in Node.js repo and close this one.