Hi, I am trying to use the pants publish to push docker images to private repositories. I can use it if I have config.json with auth in format of username + password and i specify full path in pants.toml and the files are correctly pushed to the registry.

[docker]
env_vars = [
  "DOCKER_CONFIG=/full/path/to/config/docker"
]

When i tried to use relative path (e.g. I am in my project root where pants.toml is located) and theres file config file in docker folder as

docker/config.json

, I would probably expect it to work like this:

[docker]
env_vars = [
  "DOCKER_CONFIG=docker"
]

but I get auth error. Is there a way this is evaluated and how to use this? I noticed there was an example with

%(homedir)s

in the docs but didn’t make that working either. How is the value evaluated?

cc @curved-television-6568

it’s just an env var passed through unmodified, so if you can get the

DOCKER_CONFIG

working with a relative path outside of pants, it should work the same when using pants.