[Podman] Re: Build image from Pod Yaml like in docker-compose

5 Feb 2021

      Hi Scott,

I'm looking for the same functionality. If that's OK I'd like to answer your question.
...
If we could see the source/origin docker-compose YAML,
The Yaml might get messed up so you can also get it from here: https://gist.github.com/rudolfvesely/4ad6f762eafbe5417f80ff469b690c38

I intentionally made it complicated to show various options from "docker-compose".

- "build: ." will use Dockerfile (in case of Podman this should be Containerfile) to build image. In other words this will run "docker build ."
- "args" will define / overwrite values in "ARG" in Dockerfile/Containerfile
- "dockerfile: ./foo/bar/containerfile_for_db" is used when Dockerfile has different name. In other words this will run "docker build --file=foo/bar/containerfile_for_db"

$ cat ./something/api.env
...
NODE_ENV=test
$ cat .env
...
TAG=v1.5
$ cat docker-compose.yml
...
version: "3.9"
services:
  webserver:
    # "Dockerfile" is located in the working directory and will be used to build image
    build: .
    # build arguments (used in Dockerfile)
    args:
      APP_HOME: app
    # environment variables
    environment:
      FLASK_ENV: development
  dbserver:
    # "Dockerfile" has different name
    dockerfile: ./foo/bar/containerfile_for_db
    # environment variables in a file
    env_file:
     - ./something/api.env
  redis:
    # variable defined in ".env"
    image: "webapp:${TAG}"
    volumes:
      - logvolume01:/var/log
    ports:
      - "5000:5000"
Please let me know if you have other questions.

Kind regards,

Rudolf Vesely