Very common use case for a large audience using docker-compose transitioning and migrating to podman to have the functionality of “docker-compose build” followed by the normal “docker-compose up”

Here is an example of using “build:” in one my labs for distributing tracing using nodejs and java  https://cloudnative101.dev/electives/dist-trace/activities/lab1

I think is ok if it’s not supported from kube yaml pod just from a compose, since a podspec should not have any build directives

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
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