1  version: '3.8'
 2  
 3  services:
 4    app:
 5      build:
 6        context: ..
 7        dockerfile: .devcontainer/Dockerfile
 8  
 9      volumes:
10        - ../..:/workspaces:cached
11  
12      # Overrides default command so things don't shut down after the process ends.
13      command: sleep infinity
14  
15      # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
16      network_mode: service:db
17  
18      # Use "forwardPorts" in **devcontainer.json** to forward an app port locally.
19      # (Adding the "ports" property to this file will not forward from a Codespace.)
20  
21    db:
22      image: postgres:latest
23      restart: unless-stopped
24      volumes:
25        - postgres-data:/var/lib/postgresql/data
26      environment:
27        POSTGRES_USER: postgres
28        POSTGRES_DB: postgres
29        POSTGRES_PASSWORD: postgres
30  
31      # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
32      # (Adding the "ports" property to this file will not forward from a Codespace.)
33  
34  volumes:
35    postgres-data: