Hey all I m encountering an issue publishing a Docker image Pants #general

Hey all, I'm encountering an issue publishing a Do...

incalculable-toothbrush-17758

09/29/2024, 9:34 PM

Hey all, I'm encountering an issue publishing a Docker image to

<http://gcr.io|gcr.io>

. I've tracked this down pretty far but I can't seem to determine the cause without a lot more digging and wanted to check if anyone had a solution to the problem first. Specifically it seems that

docker-credential-gcloud

freezes on execution within Pants requiring the tools and envvars recommended in the docs. I can however push directly using docker without issue. I'll put more details in the thread to save everyone the glut of information. SOLVED, see thread for details.

incalculable-toothbrush-17758

09/29/2024, 9:38 PM

First the Pants config files: `pants.toml`:

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[GLOBAL]
pants_version = "2.21.0"

...

[docker]
env_vars = ["DOCKER_CONFIG=%(env.HOME)s/.docker"]
build_args = ["GIT_COMMIT"]
default_repository = "myorg/{directory}"
tools = [
  "docker-credential-gcloud",
  "gcloud",
  "dirname",
  "readlink",
  "python3",
  "cut",
  "sed",
  "bash",
]

[docker.registries.gcr-io]
address = "gcr.io"
default = true

...

`BUILD`:

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pex_binary(
  name='app',
  environment='linux',
  ...
)

docker_image(
  name='docker',
  image_tags=['{build_args.GIT_COMMIT}'],
  instructions=[
    'FROM python:3.12-slim',
    'EXPOSE 8080',
    'COPY project/app.pex /bin/app',
    'ENTRYPOINT ["/usr/local/bin/python3.12", "/bin/app"]',
  ],
  source=None,
  dependencies=['project:app'],
  build_platform=['linux/amd64'],
)

incalculable-toothbrush-17758

09/29/2024, 9:45 PM

From here I took the advice in the docs under "How to Troubleshoot Authentication" and ran the following with the tools in

pants.toml

symlinked into the directory on `PATH`:

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echo "<http://gcr.io|gcr.io>" | env -i PATH=/Users/nik/tmp/testing/docker-creds HOME=/Users/nik CLOUDSDK_PYTHON=/Users/nik/.pyenv/shims/python3 /bin/sh -x docker-credential-gcloud get

Which also freezes. I dug a little deeper and got to:

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env -i PATH=/Users/nik/tmp/testing/docker-creds HOME=/Users/nik /Users/nik/.pyenv/shims/python3 -S /opt/homebrew/Caskroom/google-cloud-sdk/484.0.0/google-cloud-sdk/lib/gcloud.py auth docker-helper get

And again this also freezes. At this point I'm not sure I can get to the bottom of it without really digging into the

gcloud

source code, as I've already loaded this into my IDE and I can't manage to reproduce there.

incalculable-toothbrush-17758

09/29/2024, 9:46 PM

I'd really appreciate any insight into this anyone has, and thanks in advance!

incalculable-toothbrush-17758

09/29/2024, 10:01 PM

SOLUTION: Well apparently posting here did the trick as I figured it out immediately after posting. For reference to anyone coming to find the answer: I believe Pants was using the python virtualenv shim, but the shim couldn't determine the python version and froze (purely speculation). Adding this to `.pants.bootstrap`:

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export CLOUDSDK_PYTHON="$(python3 -c 'import sys; print(sys.executable)')"

and putting

CLOUDSDK_PYTHON

[docker].env_vars

seemed to do the trick.

👌 1

happy-kitchen-89482

09/30/2024, 12:05 PM

Thanks for the update! Would you be open to writing this in a GitHub Discussion under the Tips and Tricks label? That way we can preserve it for posterity

incalculable-toothbrush-17758

09/30/2024, 4:25 PM

Sure thing, I’ll try to get it in this week.

boundless-monitor-67068

01/10/2025, 2:46 PM

thank you for this @incalculable-toothbrush-17758 🙏

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