Set up PostgreSQL integration with Django and automated database migr…

…ations via entrypoint script

.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
 .env
 .vscode
-dist
+dist
+/db/db_data/*

docker-compose.yml

@@ -1,5 +1,3 @@
-version: "3"
-
 services:
   frontend:
     container_name: beow_frontend
@@ -12,13 +10,34 @@ services:
     volumes:
       - ./client:/client # bind mount
       - node_modules:/client/node_modules # docker-managed volume
+  database:
+    container_name: beow_db
+    image: postgres:17
+    ports:
+      - 5432:5432
+    env_file:
+      - .env
+    environment:
+      - POSTGRES_DB=beow_db
+      - POSTGRES_USER=admin
+      - POSTGRES_PASSWORD=password
+      - PGUSER=postgres
+    volumes:
+      - ./db/db_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "sh -c 'pg_isready -U admin -d beow_db'"]
+      interval: 1s
+      timeout: 3s
+      retries: 5
   backend:
     container_name: beow_backend
     build:
       context: ./server
       dockerfile: Dockerfile
     ports:
-      - "2808:2808"
-
+      - "2809:2809"
+    depends_on:
+      database:
+        condition: service_healthy
 volumes:
   node_modules:

server/Dockerfile

@@ -12,4 +12,6 @@ RUN pip install -r requirements.txt
 
 COPY . .
 
-CMD ["python3", "manage.py", "runserver", "0.0.0.0:2808"]
+RUN chmod +x /server/entrypoint.sh
+
+ENTRYPOINT ["/server/entrypoint.sh"]

server/entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+until python3 manage.py migrate; do
+	echo "Updating database schema..."
+	sleep 1
+done
+
+python3 manage.py runserver 0.0.0.0:2809

server/requirements.txt

@@ -1,3 +1,4 @@
-asgiref==3.7.2
-Django==5.0.3
-sqlparse==0.4.4
+asgiref==3.8.1
+Django==5.1.2
+sqlparse==0.5.1
+psycopg[binary]==3.2.3

server/server/settings.py

@@ -74,10 +74,15 @@
 # Database
 # https://docs.djangoproject.com/en/5.0/ref/settings/#databases
 
+# The details below must match the fields in docker-compose.yml
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': 'beow_db',
+        'USER': 'admin',
+        'PASSWORD': 'password',
+        'HOST': 'database',
+        'PORT': '5432', 
     }
 }