8:28 a.m.
I think supporting the “build:” directive on docker-compose yaml since podman can do both
build and run containers
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
- Carlos Santana
@csantanapr
On Feb 5, 2021, at 3:57 AM, Rudolf Vesely via Podman
<podman(a)lists.podman.io> wrote:
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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