This is seemingly the same as this issue, though I thought I'd provide a simple example:
docker run -it \
-v /pg_socket_on_host:/pg_socket_in_container \
-e PGPASSWORD=${PGPASSWORD} \
postgres \
psql -h /pg_socket_in_container -U postgres postgres
Where the path /pg_socket_on_host is a directory containing the file .s.PGSQL.5432. I've tried a few different versions of this, but I keep ending up with the same result:
psql: error: connection to server on socket "/pg_socket_in_container/.s.PGSQL.5432" failed: Connection refused
Is the server running locally and accepting connections on that socket?
Is there a reason that this is a problem with Docker?
Follow up:
I ensured that the permissions and the user (name and id, as well as group and id) for the host and container path/volume line up based on this post, but I still get the same error. I am able to connect to the socket on the host machine from the host machine. I am also able to connect to the host via host.docker.internal from the docker container. Any other ideas about debugging strategies?
