Cannot get process signal in docker

[hcfw007]

example:

async function main() {
  await new Promise(resolve => {
    setTimeout(resolve, 1000 * 60)
  })
}

const signals = [
  'SIGHUP',
  'SIGINT',
  'SIGTERM',
  'SIGQUIT',
  'SIGABRT',
  // 'SIGKILL',
  'SIGUSR1',
  'SIGUSR2'
]

for (const signal of signals) {
  console.log(`adding listener for signal ${signal}`)
  process.on(signal, () => {
    console.log(`process received a ${signal} signal`)
    process.exit(1)
  })
}

main()

It will log signal received if I use node to run in a docker container, however no siganl will be caught if I use bytenode to run in a docker container. (for docker stop, docker restart or docker-compose up -d. docker kill will work).

dockerfile:

FROM node:16.10.0-alpine3.11

RUN apk -u add --no-cache python3 bash
RUN npm install -g

WORKDIR /app

COPY ./index.js index.js
RUN bytenode -c ./index.js
CMD bytenode ./index.jsc

[OsamaAbbas]

Yeah, that is a bug in the cli.js file of bytenode. I will fix it soon.

For a workaround, run bytenode like this:

node -r bytenode ./index.jsc instead of bytenode ./index.js.

This should take care of your signal issue.

[hcfw007]

Works like a charm. Cheers

[OsamaAbbas]

I tried to replicate your issue, but I cannot. No signal will be caught whether I run node or bytenode in docker.

Could you please explain in more details how do you catch or log the signals? My experience with docker is next to non-existent.