update

api/settings.py

@@ -101,14 +101,30 @@ PROD_DATABASES = {
         "NAME": os.getenv("POSTGRES_DB"),
         "USER": os.getenv("POSTGRES_USER"),
         "PASSWORD": os.getenv("POSTGRES_PASSWORD"),
-        "HOST": os.getenv("POSTGRES_HOST"),
+        "HOST": os.getenv("POSTGRES_HOST", "pgbouncer"),
+        "PORT": "5432",
+        # 由于使用了 PgBouncer，这里不需要保持长连接
+        "CONN_MAX_AGE": 0,
+        "OPTIONS": {
+            "application_name": "webpreview",  # 便于在数据库中识别应用
+            "sslmode": "disable",  # PgBouncer 不支持 SSL
+        },
     },
 }
 
 PROD_CACHES = {
     "default": {
-        "BACKEND": "django.core.cache.backends.db.DatabaseCache",
+        "BACKEND": "django.core.cache.backends.redis.RedisCache",
-        "LOCATION": "webpreview_api_cache",
+        "LOCATION": os.getenv("REDIS_URL", "redis://webpreview-redis:6379/1"),
+        "OPTIONS": {
+            "CLIENT_CLASS": "django_redis.client.DefaultClient",
+            "CONNECTION_POOL_KWARGS": {"max_connections": 50},
+            "SOCKET_CONNECT_TIMEOUT": 5,  # 连接超时时间
+            "SOCKET_TIMEOUT": 5,  # 读写超时时间
+            "RETRY_ON_TIMEOUT": True,  # 超时时重试
+            "MAX_CONNECTIONS": 1000,  # 连接池最大连接数
+            "HEALTH_CHECK_INTERVAL": 30,  # 健康检查间隔
+        },
     }
 }
 
@@ -116,7 +132,12 @@ if DEBUG:
     DATABASES = DEV_DATABASES
 else:
     DATABASES = PROD_DATABASES
+    # 使用 Redis 作为会话存储
     SESSION_ENGINE = "django.contrib.sessions.backends.cache"
+    SESSION_CACHE_ALIAS = "default"
+    # 设置会话过期时间（24小时）
+    SESSION_COOKIE_AGE = 86400
+    # 配置缓存
     CACHES = PROD_CACHES
 
 # Password validation

entrypoint.sh

@@ -1,5 +1,19 @@
 #!/bin/sh
 
-python manage.py createcachetable
+# 等待 Redis 和 PgBouncer 准备就绪
+sleep 5
+
+# 执行数据库迁移
 python manage.py migrate --noinput
-exec gunicorn --bind 0.0.0.0:8000 api.asgi:application -k uvicorn.workers.UvicornWorker -w 5
+
+# 启动 Gunicorn
+exec gunicorn api.asgi:application \
+    --bind 0.0.0.0:8000 \
+    --worker-class uvicorn.workers.UvicornWorker \
+    --workers 4 \
+    --threads 2 \
+    --timeout 120 \
+    --keep-alive 65 \
+    --max-requests 1000 \
+    --max-requests-jitter 50 \
+    --log-level info

pyproject.toml

@@ -14,4 +14,6 @@ dependencies = [
     "pydantic[email]>=2.10.6",
     "python-dotenv>=1.0.1",
     "uvicorn>=0.34.0",
+    "django-redis>=5.4.0",
+    "redis>=5.0.1",
 ]

requirements.txt

@@ -5,6 +5,7 @@ django==5.1.6
 django-cors-headers==4.7.0
 django-extensions==3.2.3
 django-ninja==1.3.0
+django-redis==5.4.0
 dnspython==2.7.0
 email-validator==2.2.0
 gunicorn==23.0.0
@@ -16,6 +17,7 @@ psycopg-binary==3.2.5
 pydantic==2.10.6
 pydantic-core==2.27.2
 python-dotenv==1.0.1
+redis==5.2.1
 sqlparse==0.5.3
 typing-extensions==4.12.2
 uvicorn==0.34.0

uv.lock

@@ -93,6 +93,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/00/72/fd2589323b40893d3224e174eeec0c4ce5a42c7d2d384d11ba269ad4d050/django_ninja-1.3.0-py3-none-any.whl", hash = "sha256:f58096b6c767d1403dfd6c49743f82d780d7b9688d9302ecab316ac1fa6131bb", size = 2423381 },
 ]
 
+[[package]]
+name = "django-redis"
+version = "5.4.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "django" },
+    { name = "redis" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/83/9d/2272742fdd9d0a9f0b28cd995b0539430c9467a2192e4de2cea9ea6ad38c/django-redis-5.4.0.tar.gz", hash = "sha256:6a02abaa34b0fea8bf9b707d2c363ab6adc7409950b2db93602e6cb292818c42", size = 52567 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/b7/f1/63caad7c9222c26a62082f4f777de26389233b7574629996098bf6d25a4d/django_redis-5.4.0-py3-none-any.whl", hash = "sha256:ebc88df7da810732e2af9987f7f426c96204bf89319df4c6da6ca9a2942edd5b", size = 31119 },
+]
+
 [[package]]
 name = "dnspython"
 version = "2.7.0"
@@ -242,6 +255,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/6a/3e/b68c118422ec867fa7ab88444e1274aa40681c606d59ac27de5a5588f082/python_dotenv-1.0.1-py3-none-any.whl", hash = "sha256:f7b63ef50f1b690dddf550d03497b66d609393b40b564ed0d674909a68ebf16a", size = 19863 },
 ]
 
+[[package]]
+name = "redis"
+version = "5.2.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/47/da/d283a37303a995cd36f8b92db85135153dc4f7a8e4441aa827721b442cfb/redis-5.2.1.tar.gz", hash = "sha256:16f2e22dff21d5125e8481515e386711a34cbec50f0e44413dd7d9c060a54e0f", size = 4608355 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/3c/5f/fa26b9b2672cbe30e07d9a5bdf39cf16e3b80b42916757c5f92bca88e4ba/redis-5.2.1-py3-none-any.whl", hash = "sha256:ee7e1056b9aea0f04c6c2ed59452947f34c4940ee025f5dd83e6a6418b6989e4", size = 261502 },
+]
+
 [[package]]
 name = "sqlparse"
 version = "0.5.3"
@@ -291,10 +313,12 @@ dependencies = [
     { name = "django-cors-headers" },
     { name = "django-extensions" },
     { name = "django-ninja" },
+    { name = "django-redis" },
     { name = "gunicorn" },
     { name = "psycopg", extra = ["binary"] },
     { name = "pydantic", extra = ["email"] },
     { name = "python-dotenv" },
+    { name = "redis" },
     { name = "uvicorn" },
 ]
 
@@ -304,9 +328,11 @@ requires-dist = [
     { name = "django-cors-headers", specifier = ">=4.7.0" },
     { name = "django-extensions", specifier = ">=3.2.3" },
     { name = "django-ninja", specifier = ">=1.3.0" },
+    { name = "django-redis", specifier = ">=5.4.0" },
     { name = "gunicorn", specifier = ">=23.0.0" },
     { name = "psycopg", extras = ["binary"], specifier = ">=3.2.5" },
     { name = "pydantic", extras = ["email"], specifier = ">=2.10.6" },
     { name = "python-dotenv", specifier = ">=1.0.1" },
+    { name = "redis", specifier = ">=5.0.1" },
     { name = "uvicorn", specifier = ">=0.34.0" },
 ]