support multiple passing -f multiple times

[containers]

support multiple passing -f multiple times

[dellgreen]

Yes the docs do confirm your findings about -f flag

https://docs.docker.com/compose/reference/overview/

[muayyad-alsadi]

I've implemented deep merge of multiple composer files

the following would be treated as lists

• "env_file"
• "security_opt"

and the following would be treated as dicts

• "environment"
• "labels"

[dellgreen]

Testing podman-compose as a drop in replacement for docker-compose for mender.io project which uses the following script:

exec docker-compose
-p menderproduction
-f ../docker-compose.yml
-f ../docker-compose.storage.minio.yml
-f ./prod.yml
"$@"

Using above with docker-compose pulls the images, using podman-compose fails as documented above

[muayyad-alsadi]

the documentation for docker-compose does not mention that you can pass multiple yaml files using -f multiple times

$ docker-compose -h
Define and run multi-container applications with Docker.

Usage:
  docker-compose [-f <arg>...] [options] [COMMAND] [ARGS...]
  docker-compose -h|--help

Options:
  -f, --file FILE             Specify an alternate compose file
                              (default: docker-compose.yml)

so currently this is not supported it will be treated as last one of them

but regarding prefix with -p I can't reproduce that

if you try this

https://github.com/containers/podman-compose/blob/master/tests/short/docker-compose.yaml

with -p it will work fine

$ cd tests/short/
$ ../../podman_compose.py -p foobar up
...
podman create --name=foobar_web_1 --pod=foobar ...  busybox /bin/busybox httpd -f -h /var/www/html -p 8000

as you can see image name was not prefixed with foobar
would you please

1. make sure you use latest podman-compose
2. give me minimal-reproducible-example preferably with busybox and alpine (because I'm limited on resources) or instructions to for menderproduction as I'm not familiar with it.

[dellgreen]

Ok great, I'll check i'm using the latest version
The following instructions are what i am following for installing and running this docker project

https://docs.mender.io/2.0/administration/production-installation

[muayyad-alsadi]

would you please send me the 3 YAML files used in the script. attached here or using paste bin (please make sure to mask sensitive data like passwords)

[dellgreen]

Please find attached requested files :)

mender.zip

[dellgreen]

Also I have checked and I am using latest podman-compose file

[muayyad-alsadi]

here is a segment from prod.yml

    minio:
        environment:
            # access key
            MINIO_ACCESS_KEY: mender-deployments
            # secret
            MINIO_SECRET_KEY: <SECRET-REMOVED>
        volumes:
            # mounts a docker volume named `mender-artifacts` as /export directory
            - mender-artifacts:/export:rw

it does not specify an image, it seems that docker-compose merge it with docker-compose.storage.minio.yml

    minio:
        image: minio/minio:RELEASE.2018-09-25T21-34-43Z
        networks:
            mender:
                aliases:
                    - minio.s3.docker.mender.io
        command: server /export

this is undocumented behavior of docker-compose,
but I think we can do it.

[dellgreen]

For completeness, full output from running with podman-compose

output.txt

[muayyad-alsadi]

I've pushed a minimal-reproducible-example here

https://github.com/containers/podman-compose/tree/devel/tests/multicompose

we aim for bug for bug compatibility

[dellgreen]

awesome :)