Run Docker image as a git hook?

[jenstroeger]

I think somewhat related is issue #418

I’m trying to figure out how to run the prebuilt docker image ghcr.io/antonbabenko/pre-commit-terraform as a git hook using either the docker_image or system language. There seem to be multiple problems:

1. The docker image requires a .pre-commit-config.yaml on the host and that collides with my own configuration to control the git hooks in my repo.

2. Using prek and using two separate config files solved 1. but I’m not able to run the image because

   • the docker_image language doesn’t allow me to set --volume and --workdir, and
   • the docker_image language doesn’t execute $(id -u) to construct the USERID environment variable, and
   • the system language has the same constraints.

I also wasn’t able to correlate the repo version tags (e.g. v1.108.1) with the docker image tags shown here.

Could you please provide some guidance and documentation about how to run the docker image as a git hook on a local repo? Thank you!

[MaxymVlasov]

The docker image requires a .pre-commit-config.yaml on the host and that collides with my own configuration to control the git hooks in my repo.

Can you please elaborate?

It basically https://pre-commit.com/ pre-requirement. prek should use came conventions, AFAIK.

the docker_image language doesn’t execute $(id -u) to construct the USERID environment variable, and

https://github.com/antonbabenko/pre-commit-terraform#file-permissions

And generally - https://github.com/antonbabenko/pre-commit-terraform#docker-usage

---

Btw, you may be interested in try out #1002

[jenstroeger]

The docker image requires a .pre-commit-config.yaml on the host and that collides with my own configuration to control the git hooks in my repo.

Can you please elaborate?

In my repo I’ve set up pre-commit, and now want to add a few terraform checks. I did not want to install a bunch of tools on my local machine so I opted to use the docker image you provide. So now I have my existing .pre-commit-config.yaml and want to run the checks in that docker image — but that image seems to load its own .pre-commit-config.yaml file from the mounted /lint volume, and the docker images requires -v and -w which pre-commit/prek don’t seem to support in their docker_image language and using the system language for the hook definition didn’t work either… 🤔

[MaxymVlasov]

I see.

Yeah, it will definitely be resolved by #1002

Add

args:
  - --hook-config=--tool-version=X.Y.Z

to all pre-commit-terraform hooks in .pre-commit-config.yaml and use it locally.

https://github.com/antonbabenko/pre-commit-terraform/blob/dd0268840661abdcc5f121825bb85184655eb6b1/README.md#most-hooks-pin-a-specific-tool-version

And for testing purposes, set

repos:
- repo: https://github.com/antonbabenko/pre-commit-terraform
  rev: 277e7cd5f87ce37ddf3036a1a69a7d76045545a7

till we will not release a new version

[MaxymVlasov]

Now it has a tag

repos:
- repo: https://github.com/antonbabenko/pre-commit-terraform
  rev: v1.109.0

https://github.com/antonbabenko/pre-commit-terraform/releases/tag/v1.109.0