feat: add network configuration to Docker compose

- Define a custom network 'net1' for services
- Attach services to 'net1' network
- Ensure connectivity between application components

This commit enhances the Docker Compose setup by introducing a
custom network. This isolation can help manage service
dependencies better and improve communication between services,
establishing clearer boundaries. It simplifies networking
configuration and lays the groundwork for further scaling
if needed.

compose.yaml

@@ -8,6 +8,8 @@ services:
       - DATABASE_URL=postgresql://postgres:${PG_PASSWORD}@db:5432/db
       - RAILS_MASTER_KEY=${RAILS_MASTER_KEY}
       - REDIS_URL=redis://redis:6379/0
+    networks:
+      - net1
     depends_on:
       - db
       - redis
@@ -20,6 +22,8 @@ services:
       - DATABASE_URL=postgresql://postgres:${PG_PASSWORD}@db:5432/db
       - RAILS_MASTER_KEY=${RAILS_MASTER_KEY}
       - REDIS_URL=redis://redis:6379/0
+    networks:
+      - net1
     depends_on:
       - db
       - redis
@@ -28,6 +32,8 @@ services:
     image: postgres:16
     volumes:
       - ../taw_data/pg:/var/lib/postgresql/data
+    networks:
+      - net1
     environment:
       - POSTGRES_PASSWORD=${PG_PASSWORD}
       - POSTGRES_DB=db
@@ -36,4 +42,10 @@ services:
     image: redis:7-alpine
     volumes:
       - ../taw_data/redis:/data
+    networks:
+      - net1
     command: redis-server --appendonly yes
+
+networks:
+  net1:
+    driver: bridge