Modernize docker-compose.yml

.env.example

@@ -1,6 +1,17 @@
-# This file contains Content Security Policy (CSP) directives to test Wagtail's compatibility with CSP.
-# If the variables defined here are loaded into the environment, CSP will be enabled.
+DJANGO_SETTINGS_MODULE=bakerydemo.settings.dev
 
+REDIS_URL=redis://redis
+
+# Database connection settings:
+DATABASE_HOST=db
+DATABASE_PORT=5432
+DATABASE_NAME=app_db
+DATABASE_USER=app_user
+DATABASE_PASSWORD=changeme
+DATABASE_URL=postgres://$DATABASE_USER:$DATABASE_PASSWORD@$DATABASE_HOST/$DATABASE_NAME
+
+# Content Security Policy (CSP)
+# To test Wagtail's compatibility with CSP, configure the variables below to enable CSP.
 # These values are commented out by default because Wagtail is not (yet) compatible with
 # the strict policy defined below.
 

.github/workflows/docker.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Build container
-        run: docker-compose build && docker-compose pull
+        run: cp .env.example .env && docker-compose build && docker-compose pull
       - name: Run migrations
         run: docker-compose run app /venv/bin/python manage.py migrate
       - name: Load initial data

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.12
           cache: 'pip'
           cache-dependency-path: 'requirements/*.txt'
       - name: Install dependencies

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-slim
+FROM python:3.12-slim
 
 # Install packages needed to run your application (not build deps):
 # We need to recreate the /usr/share/man/man{1..8} directories first because
@@ -33,7 +33,7 @@ RUN set -ex \
         zlib1g-dev \
     " \
     && apt-get update && apt-get install -y --no-install-recommends $BUILD_DEPS \
-    && python3.9 -m venv ${VIRTUAL_ENV} \
+    && python3 -m venv ${VIRTUAL_ENV} \
     && pip install -U pip \
     && pip install --no-cache-dir -r /requirements/production.txt \
     && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false $BUILD_DEPS \
@@ -45,9 +45,6 @@ ADD . /code/
 ENV PORT 8000
 EXPOSE 8000
 
-# Add custom environment variables needed by Django or your settings file here:
-ENV DJANGO_SETTINGS_MODULE=bakerydemo.settings.production DJANGO_DEBUG=off
-
 # Call collectstatic with dummy environment variables:
 RUN DATABASE_URL=postgres://none REDIS_URL=none python manage.py collectstatic --noinput
 
@@ -57,8 +54,5 @@ RUN mkdir -p /code/bakerydemo/media/images && chown -R 1000:2000 /code/bakerydem
 # mark the destination for images as a volume
 VOLUME ["/code/bakerydemo/media/images/"]
 
-# start uWSGI, using a wrapper script to allow us to easily add more commands to container startup:
-ENTRYPOINT ["/code/docker-entrypoint.sh"]
-
 # Start uWSGI
 CMD ["uwsgi", "/code/etc/uwsgi.ini"]

docker-compose.yml

@@ -1,38 +1,40 @@
-version: '2'
+volumes:
+  postgres-data:
 
 services:
-  db:
-    environment:
-      POSTGRES_DB: app_db
-      POSTGRES_USER: app_user
-      POSTGRES_PASSWORD: changeme
-    restart: unless-stopped
-    image: postgres:14.1
-    expose:
-      - '5432'
-
-  redis:
-    restart: unless-stopped
-    image: redis:6.2
-    expose:
-      - '6379'
-
   app:
-    environment:
-      DJANGO_SECRET_KEY: changeme
-      DATABASE_URL: postgres://app_user:changeme@db/app_db
-      REDIS_URL: redis://redis
-      DJANGO_SETTINGS_MODULE: bakerydemo.settings.dev
     build:
       context: .
       dockerfile: ./Dockerfile
     volumes:
       - ./bakerydemo:/code/bakerydemo
-    links:
-      - db:db
-      - redis:redis
     ports:
       - '8000:8000'
     depends_on:
-      - db
-      - redis
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+
+  db:
+    environment:
+      - "POSTGRES_DB=${DATABASE_NAME}"
+      - "POSTGRES_USER=${DATABASE_USER}"
+      - "POSTGRES_PASSWORD=${DATABASE_PASSWORD}"
+    restart: unless-stopped
+    image: postgres:16
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    healthcheck:
+      test: "pg_isready --quiet --dbname=${DATABASE_URL}"
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    restart: unless-stopped
+    image: redis:7
+    expose:
+      - '6379'
+    healthcheck:
+      test: ["CMD-SHELL", "redis-cli ping || exit 1"]

readme.md

@@ -89,19 +89,16 @@ Run the following commands:
 ```bash
 git clone https://github.com/wagtail/bakerydemo.git
 cd bakerydemo
+cp .env.example .env
 docker compose up --build -d
 ```
 
-After this command completes and returns to the command prompt, wait 10 more seconds for the database setup to complete. Then run:
+After this command completes and returns to the command prompt, run:
 
 ```bash
-docker compose run app /venv/bin/python manage.py migrate
-docker compose run app /venv/bin/python manage.py load_initial_data
-```
-If this fails with a database error, wait 10 more seconds and re-try. Finally, run:
-
-```bash
-docker compose up
+docker compose exec app python manage.py migrate --noinput
+docker compose exec app python manage.py load_initial_data
+docker compose exec app python manage.py update_index
 ```
 
 The demo site will now be accessible at [http://localhost:8000/](http://localhost:8000/) and the Wagtail admin
@@ -125,7 +122,7 @@ You can run the Wagtail demo locally without setting up Vagrant or Docker and si
 
 #### Dependencies
 
-- Python 3.7, 3.8, 3.9, 3.10 or 3.11
+- Python 3.8, 3.9, 3.10, 3.11, or 3.12
 - [Virtualenv](https://virtualenv.pypa.io/en/stable/installation/)
 - [VirtualenvWrapper](https://virtualenvwrapper.readthedocs.io/en/latest/install.html) (optional)
 
@@ -141,7 +138,7 @@ Confirm that this is showing a compatible version of Python 3.x. If not, and you
 
     deactivate
     rmvirtualenv wagtailbakerydemo
-    mkvirtualenv wagtailbakerydemo --python=python3.9
+    mkvirtualenv wagtailbakerydemo --python=python3.12
     python --version
 
 Now we're ready to set up the bakery demo project itself:
@@ -161,6 +158,7 @@ To set up your database and load initial data, run the following commands:
 
     ./manage.py migrate
     ./manage.py load_initial_data
+    ./manage.py update_index
     ./manage.py runserver
 
 Log into the admin with the credentials `admin / changeme`.