Keep Docker Running

Many times we need dockers containers to keep running after they are started started either by using a docker run / docker exec / docker-compose command or while running as a kubernetes pod.

The following are a few of the command we can use to achieve the same:

1. sleep inf
2. tail -F /dev/null

These commands need to run as the first thing that these dockers run. So they go as the entrypoint. Or if you want flexiblity you can add them as command, but ensure that the entrypoint know how to run these.

These can also be passed directly to the docker run command, and later you can start a bash terminal using docker exec (instead of starting bash/sh in docker run and the using docker attach)