Add central postgres instance

central-database/docker-compose.yml

@@ -0,0 +1,23 @@
+services:
+  postgres:
+    build: .
+    container_name: postgres
+    restart: always
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: admin
+      POSTGRES_PASSWORD: ${POSTGRES_ADMIN_PASSWORD}
+    ports:
+      - "5432:5432"
+    networks:
+      - default
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U admin"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  postgres_data:
+    driver: local