Short description

Trying to use the common-utils feature with a pre-existing user fails if there is no group with user's name.

How to reproduce

Dockerfile

FROM ubuntu:noble

RUN useradd --gid ubuntu --create-home someuser
USER someuser

devcontainer.json

{
  "build": { "dockerfile": "Dockerfile" },
  "features": {
    "ghcr.io/devcontainers/features/common-utils": {
      "username": "someuser",
      "userGid": "1000",
      "userUid": "1001"
    }
  }
}

Start the Dev Container.

Expected

Dev Container starts with the given user, with zsh being the default shell.

Actual behavior

The container build fails during the installation of the common-utils feature. Relevant log lines:

46.19 chown: invalid group: 'someuser:someuser'
46.19 ERROR: Feature "Common Utilities" (ghcr.io/devcontainers/features/common-utils) failed to install! Look at the documentation at https://github.com/devcontainers/features/tree/main/src/common-utils for help troubleshooting this error.