What happened?

I updated local django Dockerfile python-build-stage to include

RUN apt-get update && apt-get install --no-install-recommends -y \
# dependencies for building Python packages
build-essential \
# including git \
git-all \
# psycopg2 dependencies
libpq-dev

and updated python-run-stage to include

RUN apt-get update && apt-get install --no-install-recommends -y \
# psycopg2 dependencies
libpq-dev \
# Translations dependencies
gettext \
# including git \
git-all \
# cleaning up unused files
&& apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
&& rm -rf /var/lib/apt/lists/*

I did this because one of my pip requirements needs git to install, for example

git+https://github.com/mozilla/django-csp.git

It isn't this, but the one I'm installing is in a private repository.

When I run

docker compose -f local.yml build

it fails with the following error
ERROR: Cannot find command 'git' - do you have 'git' installed and in your PATH?

Looking at the build log, there is an error

 => CACHED [django_fabman_local_docs python-build-stage 1/3] RUN apt-get update && apt-get install --no-install-recommends -y   build-essential   libpq-dev   && apt-  0.0s
 => CACHED [django_fabman_local_docs python-build-stage 2/3] COPY ./requirements /requirements                                                                         0.0s
 => ERROR [django_fabman_local_docs python-build-stage 3/3] RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels    -r /requirements/local.txt -r   16.1s

and then further down there is

=> CANCELED [django_fabman_local_django python-build-stage 1/3] RUN apt-get update && apt-get install --no-install-recommends -y   build-essential   git-all   libp  14.3s

This suggests the pip install is running ahead and being attempted before the apt-get installs have finished and the when pip fails, the APT-GET is cancelled because the whole build has borked.

What should've happened instead?

The build should have completed successfully

Additional details

• Host system configuration:

  • Version of cookiecutter CLI

  Cookiecutter 1.7.3

  • OS name and version:

  ProductName: macOS
  ProductVersion: 11.6.4
  BuildVersion: 20G417
  Docker Compose version v2.3.3
  Docker version 20.10.13, build a224086
  Python on host: Python 3.10.0 (v3.10.0:b494f5935c
  Python on Docker: Python 3.9.12 (main, Mar 29 2022, 14:20:48) [GCC 10.2.1 20210110] on linux

  • Python version, run python3 -V:
  • Docker version (if using Docker), run docker --version:
  • docker-compose version (if using Docker), run docker-compose --version:
  • ...

• Options selected and/or replay file:
  On Linux and MacOS: cat ${HOME}/.cookiecutter_replay/cookiecutter-django.json
  (Please, take care to remove sensitive information)

  {
  "cookiecutter": {
  "project_name": "Django Fabman",
  "project_slug": "django_fabman",
  "description": "Service to support the various extensions of Fabman for KWMC Factory",
  "author_name": "Daniel Tagg",
  "domain_name": "kwmc.factory",
  "email": "***@***.com",
  "version": "0.1.0",
  "open_source_license": "Not open source",
  "timezone": "Europe/London",
  "windows": "n",
  "use_pycharm": "y",
  "use_docker": "y",
  "postgresql_version": "14.1",
  "cloud_provider": "None",
  "mail_service": "Other SMTP",
  "use_async": "n",
  "use_drf": "y",
  "frontend_pipeline": "None",
  "use_celery": "n",
  "use_mailhog": "n",
  "use_sentry": "n",
  "use_whitenoise": "y",
  "use_heroku": "n",
  "ci_tool": "Gitlab",
  "keep_local_envs_in_vcs": "n",
  "debug": "n",
  "_template": "gh:cookiecutter/cookiecutter-django"
  }