Bugfixes in docker-compose and DB, gunicorn for prod, env vars for app host and port

.env

@@ -1,3 +1,6 @@
+APP_HOST=0.0.0.0
+APP_PORT=8000
+
 DB_HOST=${REPO_NAME_SNAKE}_db
 DB_PORT=3306
 DB_USER=${REPO_NAME_SNAKE}

.env_db

@@ -1,5 +1,5 @@
-MYSQL_HOST=${REPO_NAME_SNAKE}_db
 MYSQL_PORT=3306
+MYSQL_RANDOM_ROOT_PASSWORD=true
 MYSQL_USER=${REPO_NAME_SNAKE}
 MYSQL_PASSWORD=
 MYSQL_DATABASE=${REPO_NAME_SNAKE}

.env_debug

@@ -1,6 +1,11 @@
 DEBUG=true
+
 SESSION_KEY=debug
 CSRF_KEY=debug
+
+APP_HOST=127.0.0.1
+APP_PORT=8000
+
 DB_HOST=localhost
 DB_PORT=3306
 DB_USER=darkcat09

Dockerfile

@@ -1,7 +1,15 @@
-FROM python:3-alpine
+FROM alpine:latest as build
-RUN apk update && apk upgrade && apk add py-pip make
+RUN apk add --no-cache python3 python3-dev py3-pip mariadb-dev build-base
+RUN pip install --no-cache-dir wheel
 WORKDIR /app
 COPY . .
-RUN pip install -r requirements.txt
+RUN pip wheel --no-cache-dir -w /app/wheels -r requirements.txt
+
+FROM alpine:latest as run
+RUN apk add --no-cache python3 py3-pip make mariadb-connector-c-dev
+COPY --from=build /app /app
+WORKDIR /app
+RUN pip install --no-cache-dir --find-links /app/wheels -r requirements.txt
+RUN apk del py3-pip && rm -rf /app/wheels
 CMD make prod
 EXPOSE 8000

Makefile

@@ -1,9 +1,14 @@
+APP_HOST ?= 0.0.0.0
+APP_PORT ?= 8000
+
 dev:
 	python3 -m dotenv -f .env_debug run \
-	python3 -m uvicorn main:app --reload
+	make cmd-dev
 
 prod:
-	python3 -m uvicorn main:app
+	python3 -m gunicorn \
+	-w 4 -k uvicorn.workers.UvicornWorker \
+	-b $${APP_HOST}:$${APP_PORT} main:app
 
 format:
 	python3 -m autopep8 -r --in-place app/
@@ -30,8 +35,16 @@ clean:
 	rm -rf __pycache__
 	rm -rf .mypy_cache
 
+cmd-dev:
+	python3 -m uvicorn main:app \
+	--reload \
+	--host $${APP_HOST} \
+	--port $${APP_PORT}
+
 cmd-docker-build:
-	docker build -t ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}:$${VERSION} .
+	docker build \
+	-t ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}:latest \
+	-t ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}:$${VERSION} .
 
 cmd-docker-push:
-	docker push ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}:$$VERSION
+	docker push -a ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}

app/common.py

@@ -20,6 +20,8 @@ class Settings(BaseSettings):
     debug: bool = False
     session_key: str = secrets.token_hex(32)
     csrf_key: str = secrets.token_hex(32)
+    app_host: str = '127.0.0.1'
+    app_port: int = 8000
 
 
 settings = Settings()

docker-compose.yml

@@ -1,6 +1,7 @@
 version: "3"
 
 services:
+
   ${REPO_NAME_SNAKE}:
     image: ${REPO_OWNER_LOWER}/${REPO_NAME_SNAKE}:latest
     container_name: ${REPO_NAME_SNAKE}
@@ -10,10 +11,20 @@ services:
     links:
       - ${REPO_NAME_SNAKE}_db
     env_file: .env
+    depends_on:
+      ${REPO_NAME_SNAKE}_db:
+        condition: service_healthy
+
   ${REPO_NAME_SNAKE}_db:
     image: mariadb:latest
     container_name: ${REPO_NAME_SNAKE}_db
     restart: unless-stopped
     volumes:
       - "./database:/var/lib/mysql"
-    env_file: .env
+    env_file: .env_db
+    healthcheck:
+      test: sh -c "mysqladmin ping -u$$$$MYSQL_USER -p$$$$MYSQL_PASSWORD"
+      interval: 1s
+      timeout: 3s
+      retries: 20
+      start_period: 10s

main.py

@@ -3,7 +3,12 @@
 import uvicorn
 
 from app.main import app
+from app.common import settings
 
 
 if __name__ == '__main__':
-    uvicorn.run(app)
+    uvicorn.run(
+        app=app,
+        host=settings.app_host,
+        port=settings.app_port,
+    )

requirements.txt

@@ -1,5 +1,6 @@
 fastapi==0.92.0
 uvicorn[standard]==0.20.0
+gunicorn==20.1.0
 jinja2==3.1.2
 starlette-wtf==0.4.3
 sqlalchemy==2.0.4