[PATCH v2 3/3] docker: Require GID also

[Stephen Finucane]

If you don't do this, created files end up with a group of 'gcc' or
whatever group has an ID of 1000.

Signed-off-by: Stephen Finucane <stephen at that.guru>
---
 docker-compose.yml      |  2 ++
 tools/docker/Dockerfile | 11 +++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git docker-compose.yml docker-compose.yml
index 90b24c22..1762d4a6 100644
--- docker-compose.yml
+++ docker-compose.yml
@@ -15,6 +15,7 @@ services:
       dockerfile: ./tools/docker/Dockerfile
       args:
         - UID
+        - GID
     depends_on:
       - db
     command: python3 manage.py runserver 0.0.0.0:8000
@@ -24,5 +25,6 @@ services:
       - "8000:8000"
     environment:
       - UID
+      - GID
       - PW_TEST_DB_HOST=db
       - PW_TEST_DB_PORT=3306
diff --git tools/docker/Dockerfile tools/docker/Dockerfile
index 79408041..d141c253 100644
--- tools/docker/Dockerfile
+++ tools/docker/Dockerfile
@@ -1,11 +1,13 @@
 FROM ubuntu:18.04
 
 ARG UID
+ARG GID
 
 # make sure the user has configured the '.env' file and quick fail if not
 
-RUN echo $UID
-RUN [ -n "$UID" ] || { echo "You must define UID in .env" 1>&2; exit 1; }
+RUN echo $UID; echo $GID; \
+    [ -n "$UID" ] || { echo "You must define UID in .env" 1>&2; exit 1; }; \
+    [ -n "$GID" ] || { echo "You must define GID in .env" 1>&2; exit 1; }
 
 ARG TZ="Australia/Canberra"
 ENV LANG="C.UTF-8"
@@ -18,8 +20,9 @@ ENV PYTHONUNBUFFERED 1
 ENV PROJECT_HOME /home/patchwork/patchwork
 ENV DJANGO_SETTINGS_MODULE patchwork.settings.dev
 
-RUN useradd --uid=$UID --create-home patchwork
-RUN rm /etc/localtime; ln -s /usr/share/zoneinfo/$TZ /etc/localtime
+RUN groupadd --gid=$GID patchwork && \
+    useradd --uid=$UID --gid=$GID --create-home patchwork
+RUN rm -f /etc/localtime; ln -s /usr/share/zoneinfo/$TZ /etc/localtime
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
-- 
2.21.0