pressing ctrl-c does not result in aborting node

[keerden]

Environment

• Platform: Debian 10
• Docker Version: 20.10.17
• Node.js Version: 20.3.1
• Image Tag: node:20.3-Alpine3.18

Expected Behavior

Pressing ctrl-c when running a simple nodejs script should emit a sigint and stop node.

Current Behavior

Pressing ctrl-c is ignored

Steps to Reproduce

Create in a empty dir the following files:

Dockerfile:

FROM node:20.3-alpine3.18
COPY . .
RUN npm install
CMD [ "npm", "start" ]

package.json

{
  "name": "test",
  "version": "1.0.0",
  "main": "test.js",
  "scripts": {
    "start": "node test.js"
  }
}

test.js

'use strict';

console.log("test");

for (let i=0; i<10; i++) {
    task(i);
 }
   
 function task(i) {
   setTimeout(function() {
       console.log(i);
   }, 2000 * i);
 }

build a docker image with docker build -t test .

run the image with docker run test

press ctrl-c to abort, nothing happens

Additional Information

Works on node:20.2-Alpine3.18

[tianon]

See https://github.com/nodejs/docker-node/blob/7f99010af378daa2520bb60435d0e91e20950d82/docs/BestPractices.md#handling-kernel-signals 👀