'pm2 command not working from a docker image

I have a pm2 command in my docker file which should run inside container when the container starts:

CMD ["pm2", "start", "ecosystem.local.json"]
CMD ["pm2", "logs"]

Expected output: showing logs of my process

Actual output: no logs but container is running.

Seems like the first command doesnt start the process because when i go inside the container and run pm2 list manually then i dont see any process running.

But when i run the same above commands from inside the container manually:

pm2 start ecosystem.local.json
pm2 list
pm2 logs

then i can see my process running and its logs.

So why the command CMD ["pm2", "start", "ecosystem.local.json"] doesnt run automatically from the docker file/image?

P.S. I also used pm2-runtime from https://pm2.keymetrics.io/docs/usage/docker-pm2-nodejs/ but no success.

node.jsdockerprocesscontainerspm2


Solution 1:[1]

As pointed out in comment, my container was getting started and immediately exiting after that. I was using pm2 and switching to pm2-runtime did the work.

Not working:

"start-server": "export NODE_ENV=production && cd server && ./node_modules/.bin/pm2 start index.js",

Working:

"start-server": "export NODE_ENV=production && cd server && ./node_modules/.bin/pm2-runtime start index.js",

From Dockerfile-

CMD ["yarn", "start-server"]

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Varun Kumar

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