Add docker-compose.yml for initial use

docker-compose.yml

@@ -0,0 +1,35 @@
+services:
+  postgres:
+    image: postgres:17
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_USER: diachron
+      POSTGRES_PASSWORD: diachron
+      POSTGRES_DB: diachron
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+  redis:
+    image: redis:7
+    ports:
+      - "6379:6379"
+
+  memcached:
+    image: memcached:1.6
+    ports:
+      - "11211:11211"
+
+  beanstalkd:
+    image: schickling/beanstalkd
+    ports:
+      - "11300:11300"
+
+  mailpit:
+    image: axllent/mailpit
+    ports:
+      - "1025:1025"   # SMTP
+      - "8025:8025"   # Web UI
+
+volumes:
+  postgres_data: