Possible to pass `docker build` flags via docker-compose?-CodePudding

I have a Dockerfile Dockerfile.foo
I run Dockerfile.foo using docker run -p 8000:8000 --cap-add=IPC_LOCK johndoe/repo:latest

Everything works fine so far.

My issue is, --cap-add=IPC_LOCK is required to run Dockerfile.foo (no way around that, that I'm aware of).

However, I'd like to run Dockerfile.foo as a part of my dockercompose.yaml, because I have a few other services that use the container produced by Dockerfile.foo. Issue is, I can't figure out how to (1) either use the johndoe/repo:latest image, or (2) Use Dockerfile.foo in dockercompose.yaml and pass that --cap-add=IPC_LOCK flag to either the image or the Dockerfile (depending on whichever I'm allowed to use).

Is what I'm trying to do even possible? If not, is there a suggested/recommended way to attain my objective?

CodePudding user response：

You can use the cap_add clause in your docker compose file:

cap_add:
  - IPC_LOCK

So your dockercompose.yaml would look something like:

version: "3.9"
services:
  johndoe:
    build: /path/to/dir
    cap_add:
      - IPC_LOCK

When you run docker compose up, the johndoe service will use an image built from the Dockerfile and run the container with the the --cap-add flag.

Also note that Dockerfile has no extension.