perf: strictly limit memory usage for umami and backend

privat/CV/andreknie.de/docker-compose.yml

@@ -5,6 +5,12 @@ services:
       - ./server/data:/app/server/data
     env_file:
       - .env
+    environment:
+      - NODE_OPTIONS=--max-old-space-size=128
+    deploy:
+      resources:
+        limits:
+          memory: 256M
     restart: unless-stopped
 
   caddy:
@@ -23,10 +29,15 @@ services:
 
   umami-db:
     image: postgres:15-alpine
+    command: postgres -c shared_buffers=32MB -c max_connections=20
     env_file:
       - .env
     volumes:
       - umami_db_data:/var/lib/postgresql/data
+    deploy:
+      resources:
+        limits:
+          memory: 256M
     restart: unless-stopped
 
   umami:
@@ -35,6 +46,11 @@ services:
       - .env
     environment:
       - PORT=3000
+      - NODE_OPTIONS=--max-old-space-size=128
+    deploy:
+      resources:
+        limits:
+          memory: 256M
     depends_on:
       - umami-db
     restart: unless-stopped