I need to execute a
docker run inside a console application in Java. I build the
Dockerfile with base image
gradle:6.8.3-jdk15 before the application starts. This is the expected flow:
- On host: I create a new
Processthat runs my
- Inside container: the entrypoint is
gradle --daemon, after the daemon is started and running the container must run in detached mode (with
-d -itfor instance).
- On host: I am sure the daemon is running and I can access my container with
How can I automatically detach a docker container after a command (inside the container) is executed?
Most of the solutions I found deal with the problem at the application level: it is feasible for me too because I can run my container in detached mode from the beginning and keep polling it from code. Working but not very performant, I feel like Docker already let you do this.
I thought that maybe an
HEALTHCHECK could come in handy, if it would be able to return to the caller after the container gets labeled as healthy, but I do not think it is possible.
I have not written any code because what I am looking for is a solution/workaround based on docker only. If it cannot be done, is polling the container with
docker exec my only option?
Source: Docker Questions