Adjust resource limits for lightweight and production services

- Update memory and CPU allocation in `docker-compose.monitoring-rpi.yml` for optimized usage on Raspberry Pi 5.
- Revise resource reservations and limits in `docker-compose.prod.yml` for better scalability and performance.
- Ensure alignment with updated system requirements and tested configurations.

Author: robin-watcha

docker-compose.monitoring-rpi.yml

@@ -26,8 +26,8 @@
 #   - Logs: Promtail scrapes Docker containers → Loki
 #
 # Resource Limits (optimized for Raspberry Pi 5 - 8GB RAM):
-#   - Memory: ~2.5GB total (512MB × 5 services)
-#   - CPU: ~5 cores total (1.0 for main services, 0.5 for Collector/Promtail)
+#   - Memory: ~3GB total (512MB × 5 main + 256MB × 2 lightweight)
+#   - CPU: ~4.5 cores total (1.0 for main services, 0.5 for Collector/Promtail/Caddy)
 #   - Tested on: Raspberry Pi 5 with 8GB RAM
 #
 # Security:
@@ -158,6 +158,8 @@ services:
       - promtail_data:/data/promtail
     ports:
       - "9080:9080" # Promtail HTTP for healthcheck
+    mem_limit: 256m
+    mem_reservation: 128m
     cpus: '0.5' # Limit to 0.5 CPU core (lightweight)
     networks:
       - observability

docker-compose.prod.yml

@@ -44,11 +44,11 @@ services:
     deploy:
       resources:
         limits:
+          memory: 2G
+          cpus: '1.5'
+        reservations:
           memory: 1G
           cpus: '0.5'
-        reservations:
-          memory: 512M
-          cpus: '0.25'
 
   worker:
     image: ghcr.io/${GITHUB_REPOSITORY}:production
@@ -65,11 +65,11 @@ services:
     deploy:
       resources:
         limits:
+          memory: 1G
+          cpus: '1.0'
+        reservations:
           memory: 512M
           cpus: '0.25'
-        reservations:
-          memory: 256M
-          cpus: '0.1'
 
   websocket:
     image: ghcr.io/${GITHUB_REPOSITORY}:production
@@ -88,9 +88,9 @@ services:
       resources:
         limits:
           memory: 512M
-          cpus: '0.25'
+          cpus: '0.5'
         reservations:
           memory: 256M
-          cpus: '0.1'
+          cpus: '0.25'
 
 # 네이티브 PostgreSQL과 Redis 사용으로 볼륨/네트워크 불필요