Im running into a weird problem trying to

package

a

docker_image

target within a github action. It's telling me that it cant connect to docker:

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?.

Whats weird is that if in the same step i do

docker build .

to the same dockerfile pants points to in

docker_image

, it works properly and builds all layers except the ones using the pants context (i.e

foo.bar/main.pex

)

Hmm, I don't use GHA with docker, but I wonder if they've set up rootless docker (or some other docker-in-docker setup). That would mean they've got the docker socket set up somewhere else (probably

/run/user/$UID/docker.sock

). Normally that works by setting the envvar DOCKER_HOST . But pants tries to clean the environment to prevent other stuff from leaking in. Try setting the envvar passthrough like [here](https://www.pantsbuild.org/docs/docker#docker-configuration)