fix: added pgBouncer for conn pool manage

docker-compose.prod.yml

@@ -15,6 +15,38 @@ services:
       - db_data:/var/lib/postgresql/data
     restart: unless-stopped
 
+  pgbouncer:
+    image: pgbouncer/pgbouncer:latest
+    container_name: pgbouncer
+    environment:
+      POSTGRES_HOST: postgres
+      POSTGRES_PORT: "${POSTGRES_PORT:-5432}"
+      POSTGRES_DB: ${POSTGRES_DB:-flower}
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      DATABASES_HOST: postgres
+      DATABASES_PORT: "${POSTGRES_PORT:-5432}"
+      DATABASES_USER: ${POSTGRES_USER:-postgres}
+      DATABASES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      DATABASES_DBNAME: ${POSTGRES_DB:-flower}
+      PGBOUNCER_POOL_MODE: transaction
+      PGBOUNCER_MAX_CLIENT_CONN: "100"
+      PGBOUNCER_DEFAULT_POOL_SIZE: "25"
+      PGBOUNCER_MIN_POOL_SIZE: "5"
+      PGBOUNCER_RESERVE_POOL_SIZE: "5"
+      PGBOUNCER_RESERVE_POOL_TIMEOUT: "3"
+      PGBOUNCER_SERVER_IDLE_TIMEOUT: "600"
+      PGBOUNCER_LOG_CONNECTIONS: "1"
+      PGBOUNCER_LOG_DISCONNECTIONS: "1"
+      PGBOUNCER_LOG_POOLER_ERRORS: "1"
+    ports:
+      - "${PGBOUNCER_PORT:-6432}:6432"
+    volumes:
+      - ./pgbouncer/pgbouncer.ini:/etc/pgbouncer/pgbouncer.ini:ro
+    depends_on:
+      - postgres
+    restart: unless-stopped
+
   redis:
     image: redis:7-alpine
     container_name: redis
@@ -51,14 +83,15 @@ services:
       PYTHONPATH: /app
       DEBUG: "${DEBUG:-0}"
       ALLOWED_HOSTS: "${ALLOWED_HOSTS:-yuwenerp.yuwen.cloud}"
-      DB_HOST: ${DB_HOST:-postgres}
-      DB_PORT: "${DB_PORT:-5432}"
+      DB_HOST: ${DB_HOST:-pgbouncer}
+      DB_PORT: "${DB_PORT:-6432}"
       DB_NAME: "${DB_NAME:-flower}"
       DB_USER: "${DB_USER:-postgres}"
       DB_PASSWORD: "${DB_PASSWORD:-postgres}"
       CELERY_BROKER_URL: "${CELERY_BROKER_URL:-amqp://guest:guest@rabbitmq:5672//}"
       CELERY_RESULT_BACKEND: "${CELERY_RESULT_BACKEND:-redis://redis:6379/0}"
     depends_on:
+      - pgbouncer
       - postgres
       - redis
       - rabbitmq
@@ -78,8 +111,8 @@ services:
       - --pool=solo
     environment:
       PYTHONPATH: /app
-      DB_HOST: ${DB_HOST:-postgres}
-      DB_PORT: "${DB_PORT:-5432}"
+      DB_HOST: ${DB_HOST:-pgbouncer}
+      DB_PORT: "${DB_PORT:-6432}"
       DB_NAME: "${DB_NAME:-flower}"
       DB_USER: "${DB_USER:-postgres}"
       DB_PASSWORD: "${DB_PASSWORD:-postgres}"
@@ -91,6 +124,7 @@ services:
       # 也可通过 BACKUP_DIR 指定绝对路径，如 /srv/flower/data-bak
       - ${BACKUP_DIR:-./data-bak}:/app/data-bak
     depends_on:
+      - pgbouncer
       - postgres
       - redis
       - rabbitmq
@@ -111,8 +145,8 @@ services:
     environment:
       DJANGO_SETTINGS_MODULE: flower.settings
       PYTHONPATH: /app
-      DB_HOST: ${DB_HOST:-postgres}
-      DB_PORT: "${DB_PORT:-5432}"
+      DB_HOST: ${DB_HOST:-pgbouncer}
+      DB_PORT: "${DB_PORT:-6432}"
       DB_NAME: "${DB_NAME:-flower}"
       DB_USER: "${DB_USER:-postgres}"
       DB_PASSWORD: "${DB_PASSWORD:-postgres}"
@@ -122,6 +156,7 @@ services:
     volumes:
       - celery_beat_data:/var/lib/celery
     depends_on:
+      - pgbouncer
       - postgres
       - redis
       - rabbitmq