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Docker Container run in background

Jan 21, 2022 · 1 min read · Post a comment
Docker Container run in background

While running a docker container in detached mode d maybe you have experienced exiting the container immediately. Here I’m going to show you some ways how to keep it running in the background using:

  1. Dockerfile
  2. pseudo-tty
  3. tail command

Prerequisites

  • Docker

Using Dockerfile

If you have a Dockerfile you can set ENTRYPOINT that will keep the container running without getting terminated.

FROM centos:latest

ENTRYPOINT ["tail", "-f", "/dev/null"]

Using pseudo-tty

Using the recent docker versions have authorized to run a container with pseudo-tty so you can avoid the container being terminated.

sudo docker run -t -d centos

Using tail command

Last but not least, this is the way that I prefer and I’m using it a lot, directly passing the tail command within the docker run command:

sudo docker run -d centos tail -f /dev/null

Conclusion

If you want to add another useful way don’t hesitate to put a comment below. Feel free to leave a comment below and if you find this tutorial useful, follow our official channel on Telegram.