Adding basic support for --profile argument

[dixonwhitmire]

This PR adds support for the global --profile option .

High level updates include:



• Support for “—profile” argument in _parse_args()
• A new PodmanCompose method, _resolve_profiles, to resolve profile arguments against a compose file’s service definitions
• Updated PodmanCompose to use _resolve_profiles where appropriate
• New test cases for the Podman-compose config and up/down commands


I limited test case support to the config and up/down commands, since these are the commands I need for my specific use-case.

For my use-case I am using podman-compose as an interim solution while I migrate some of my project local development environments from docker compose to podman/k8s.

Additionally, I tried to align my changes to the current “style” of the repo with focused changes to make diff’ing reviews easier. 

From an implementation standpoint I focused on specific enablement using the “—profile” argument.

If this PR is accepted, I will do a follow-up PR to support the COMPOSE_PROFILES environment variable. We can also add additional test cases to ensure the “spec” is covered in light of podman-compose’s current support.

Test case output (I can add a marker to skip the up/down tests if needed)

================================================================== test session starts ===================================================================
platform darwin -- Python 3.10.5, pytest-7.2.0, pluggy-1.0.0
rootdir: /Users/dwhitmire/code/podman-compose
plugins: cov-4.0.0
collected 9 items                                                                                                                                        

pytests/test_volumes.py .                                                                                                                          [ 11%]
tests/test_podman_compose.py .                                                                                                                     [ 22%]
tests/test_podman_compose_config.py ....                                                                                                           [ 66%]
tests/test_podman_compose_up_down.py ...                                                                                                           [100%]

============================================================== 9 passed in 88.21s (0:01:28) ==============================================================

closes #430
Signed-off-by: Dixon Whitmire [email protected]

[lc-guy]

Any update on this PR? Is it ready to merge? This would be immensely useful to disable select services, along with compose overrides for different environments (dev, staging, ...).

[dixonwhitmire]

Any update on this PR? Is it ready to merge? This would be immensely useful to disable select services, along with compose overrides for different environments (dev, staging, ...).

@lc-guy - I don't have write access to this repo, but am still available to implement feedback on this PR if that's currently blocking it's acceptance.

[Steiniche]

Just gonna keep the discussion alive.

@dixonwhitmire do I understand correctly that this PR is ready to merge from your side?
Only thing we need is a maintainer to look into it and do the approval/merge process?

This feature would be of high value to us so if we can do anything to help move the process along we will gladly do so.

[dixonwhitmire]

@Steiniche - Yes, that is correct. I believe that the PR is good to go, and just requires maintainer approval. Thanks!

[dartagnanli]

really need this feature.

[firefart]

Any update on a PR regarding the COMPOSE_PROFILES env variable?

[Jmennius]

@dixonwhitmire Can we get this released, the PR has been merged for a year now... 🥲

(hate to be this guy, sorry)

[dixonwhitmire]

@dixonwhitmire Can we get this released, the PR has been merged for a year now... 🥲

(hate to be this guy, sorry)

Hello @Jmennius ! Unfortunately I am not a maintainer of this repo, and cannot create a release or merge a PR.