add docker setup

.dockerignore

@@ -0,0 +1,12 @@
+**/__pycache__
+**/*.pyc
+.tox
+.vim/
+.vim*
+.git/
+*.sql
+*.sql.gz
+.mypy_cache/
+.pytest_cache/
+.ipython/
+docker-compose.yml

.env

@@ -1,3 +1,15 @@
+## DOCKER COMPOSE SETTINGS
+
+#COMPOSE_APP_PATH=.
+#COMPOSE_CACHE_PORT=637
+#COMPOSE_DB_PORT=5432
+#COMPOSE_PYTHON_PKG_PATH=
+#COMPOSE_TASK_CONCURRENCY=500
+#COMPOSE_TASK_LOG_LEVEL=info
+#COMPOSE_WEB_LOG_LEVEL=info
+#COMPOSE_WEB_PORT=8002
+#COMPOSE_WEB_WORKERS=4
+
 ## DJANGO SETTINGS
 
 ALLOWED_HOSTS=*

Dockerfile

@@ -0,0 +1,29 @@
+FROM python:3.8
+
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV POETRY_VIRTUALENVS_CREATE=0
+
+RUN adduser --uid 1000 --gecos --quiet --disabled-password app_user
+
+RUN mkdir -p /usr/src/app \
+    && chown app_user.app_user /usr/src/app
+WORKDIR /usr/src/app
+
+COPY --chown=app_user requirements.txt ./
+
+ARG PIP_ARGS=
+RUN set -eux \
+    && apt update \
+    && apt upgrade -y \
+    && apt install -y curl\
+    && pip3 install -r requirements.txt $PIP_ARGS \
+    && apt autoremove -y \
+    && rm -rf /root/.cache/pip /var/cache/apt
+
+COPY --chown=app_user . .
+
+USER app_user
+
+CMD ["/usr/local/bin/gunicorn", "base_app.asgi:application", "-k", "uvicorn.workers.UvicornWorker", "--bind", "0.0.0.0:8000"]
+

docker-compose.yml

@@ -0,0 +1,78 @@
+version: '3.8'
+
+volumes:
+  python-pkgs:
+  db-data:
+  cache-data:
+
+x-common: &app-common
+  build:
+    context: .
+  env_file: .env
+  environment:
+    DATABASE_URL: psql://db/base_app
+    DATABASE_USER: postgres
+    DATABASE_PASSWORD: postgres
+    CACHE_URL: redis://cache:6379/0
+    CELERY_BROKER_URL: redis://cache:6379/1
+    CELERY_RESULT_BACKEND: redis://cache:6379/2
+  user: ${UID:-app_user}
+  volumes:
+    - ${COMPOSE_APP_PATH:-.}:/usr/src/app:delegated
+    - ${COMPOSE_PYTHON_PKG_PATH:-python-pkgs}:/usr/local/lib/python3.8/site-packages:z
+
+services:
+  app:
+    <<: *app-common
+    command:
+      - uvicorn
+      - base_app.asgi:application
+      - --workers=${COMPOSE_WEB_WORKERS:-4}
+      - --host=0.0.0.0
+      - --port=8000
+      - --reload
+      - --log-level=${COMPOSE_WEB_LOG_LEVEL:-info}
+      - --lifespan=off
+    restart: unless-stopped
+    depends_on:
+      - cache
+      - db
+    tty: true
+    ports:
+      - "${COMPOSE_WEB_PORT:-8002}:8000"
+
+  task_worker:
+    <<: *app-common
+    command:
+      - celery
+      - worker
+      - --events
+      - --app
+      - base_app.celery
+      - --loglevel=${COMPOSE_TASK_LOG_LEVEL:-info}
+      - --pool=gevent
+      - --concurrency=${COMPOSE_TASK_CONCURRENCY:-100}
+    restart: unless-stopped
+    depends_on:
+      - cache
+      - db
+
+  db:
+    image: postgres:12-alpine
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: base_app
+    restart: unless-stopped
+    ports:
+      - '${COMPOSE_DB_PORT:-0}:5432'
+    volumes:
+      - db-data:/var/lib/postgresql/data
+
+  cache:
+    image: redis:5-alpine
+    restart: unless-stopped
+    volumes:
+      - cache-data:/var/lib/redis
+    ports:
+      - '${COMPOSE_CACHE_PORT:-0}:6379'

requirements.txt

@@ -10,6 +10,13 @@ djangorestframework>=3.11
 python-json-logger
 structlog
 
+# infra
+gevent
+gunicorn
+psycopg2-binary
+redis
+uvicorn
+
 # tests, linting, code quality
 bandit
 django-stubs