react-rust-postgres: add connection to postgres with migrations

Signed-off-by: Jérémie Drouet <jeremie.drouet@gmail.com>

react-rust-postgres/docker-compose.yaml

@@ -1,16 +1,43 @@
 version: "3.7"
 services:
+  frontend:
+    build:
+      context: frontend
+      target: development
+    networks:
+      - client-side
+    ports:
+      - 3000:3000
+    volumes:
+      - ./frontend/src:/code/src:ro
   backend:
     build:
       context: backend
       target: development
+    environment:
+      - DATABASE_URL=postgres://postgres:mysecretpassword@db/postgres
     networks:
+      - client-side
       - server-side
     volumes:
-      - ./backend/src:/code/src:ro
+      - ./backend/src:/code/src
       - backend-cache:/code/target
+    depends_on:
+      - db
+  db:
+    image: postgres:12-alpine
+    restart: always
+    environment:
+      - POSTGRES_PASSWORD=mysecretpassword
+    networks:
+      - server-side
+    ports:
+      - 5432:5432
+    volumes:
+      - db-data:/var/lib/postgresql/data
 networks:
   client-side: {}
   server-side: {}
 volumes:
   backend-cache: {}
+  db-data: {}