Adjust container resource limits for 6 CPU / 30 GB RAM server

Resource allocation (limits / reservations):
- php x2:        1.5 CPU / 1G    |  0.5 CPU / 256M
- db-master:     2.0 CPU / 4G    |  0.5 CPU / 1G    (shared_buffers=1GB, effective_cache_size=3GB)
- db-slave:      1.5 CPU / 2G    |  0.25 CPU / 512M
- pgbouncer:     0.5 CPU / 128M  |  0.1 CPU / 32M
- messenger x2:  1.0 CPU / 512M  |  0.25 CPU / 128M
- redis:         1.0 CPU / 1G    |  0.25 CPU / 128M  (maxmemory 768mb)
- meilisearch:   1.0 CPU / 1G    |  0.25 CPU / 256M

Total max with replicas: ~12 CPU / ~13G RAM (overcommit OK, reservations fit)
Total reservations: ~3.6 CPU / ~4G RAM (guaranteed minimum)
Added PostgreSQL tuning: shared_buffers, effective_cache_size, work_mem.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ansible/docker-compose-prod.yml.j2

@@ -9,11 +9,11 @@ services:
       replicas: 2
       resources:
         limits:
-          cpus: "1.0"
-          memory: 512M
+          cpus: "1.5"
+          memory: 1G
         reservations:
-          cpus: "0.25"
-          memory: 128M
+          cpus: "0.5"
+          memory: 256M
     restart: unless-stopped
     group_add:
       - "{{ docker_gid }}"
@@ -36,11 +36,11 @@ services:
     deploy:
       resources:
         limits:
-          cpus: "1.5"
-          memory: 2G
+          cpus: "2.0"
+          memory: 4G
         reservations:
           cpus: "0.5"
-          memory: 512M
+          memory: 1G
     environment:
       POSTGRES_USER: e-ticket
       POSTGRES_PASSWORD: {{ db_password }}
@@ -55,6 +55,12 @@ services:
       - wal_keep_size=64MB
       - -c
       - hot_standby=on
+      - -c
+      - shared_buffers=1GB
+      - -c
+      - effective_cache_size=3GB
+      - -c
+      - work_mem=16MB
     volumes:
       - db-master-data:/var/lib/postgresql/data
       - ./docker/pgsql/init-master.sh:/docker-entrypoint-initdb.d/init-master.sh
@@ -72,11 +78,11 @@ services:
     deploy:
       resources:
         limits:
-          cpus: "1.0"
-          memory: 1G
+          cpus: "1.5"
+          memory: 2G
         reservations:
           cpus: "0.25"
-          memory: 256M
+          memory: 512M
     environment:
       POSTGRES_USER: e-ticket
       POSTGRES_PASSWORD: {{ db_password }}
@@ -104,11 +110,11 @@ services:
     deploy:
       resources:
         limits:
-          cpus: "0.25"
-          memory: 64M
+          cpus: "0.5"
+          memory: 128M
         reservations:
-          cpus: "0.05"
-          memory: 16M
+          cpus: "0.1"
+          memory: 32M
     volumes:
       - ./docker/pgsql/pgbouncer.ini:/etc/pgbouncer/pgbouncer.ini:ro
       - ./docker/pgsql/userlist.txt:/etc/pgbouncer/userlist.txt:ro
@@ -134,11 +140,11 @@ services:
       replicas: 2
       resources:
         limits:
-          cpus: "0.5"
-          memory: 384M
+          cpus: "1.0"
+          memory: 512M
         reservations:
-          cpus: "0.1"
-          memory: 64M
+          cpus: "0.25"
+          memory: 128M
     restart: unless-stopped
     volumes:
       - .:/app
@@ -158,12 +164,12 @@ services:
     deploy:
       resources:
         limits:
-          cpus: "0.5"
-          memory: 256M
+          cpus: "1.0"
+          memory: 1G
         reservations:
-          cpus: "0.1"
-          memory: 64M
-    command: redis-server --requirepass {{ redis_password }} --maxmemory 200mb --maxmemory-policy allkeys-lru
+          cpus: "0.25"
+          memory: 128M
+    command: redis-server --requirepass {{ redis_password }} --maxmemory 768mb --maxmemory-policy allkeys-lru
     volumes:
       - redis-data:/data
     networks:
@@ -180,11 +186,11 @@ services:
     deploy:
       resources:
         limits:
-          cpus: "0.5"
-          memory: 512M
+          cpus: "1.0"
+          memory: 1G
         reservations:
-          cpus: "0.1"
-          memory: 128M
+          cpus: "0.25"
+          memory: 256M
     environment:
       MEILI_MASTER_KEY: {{ meilisearch_master_key }}
       MEILI_ENV: production