Init devcontainer

.devcontainer/docker-compose.yml

@@ -0,0 +1,34 @@
+services:
+  app:
+    build: 
+      context: .
+      dockerfile: Dockerfile
+    volumes:
+      - ../..:/workspaces:cached
+
+    # Overrides default command so things don't shut down after the process ends.
+    command: sleep infinity
+
+    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
+    network_mode: service:db
+
+    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally. 
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+  db:
+    image: mongo:latest
+    restart: unless-stopped
+    volumes:
+      - mongodb-data:/data/db
+
+    # Uncomment to change startup options
+    # environment:
+    #  MONGO_INITDB_ROOT_USERNAME: root
+    #  MONGO_INITDB_ROOT_PASSWORD: example
+    #  MONGO_INITDB_DATABASE: your-database-here
+
+    # Add "forwardPorts": ["27017"] to **devcontainer.json** to forward MongoDB locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+volumes:
+  mongodb-data: