我在Kong有服务,并且已经为该服务设置了代理缓存插件。
curl -X POST http://localhost:8001/plugins --data "name=proxy-cache" --data "config.strategy=redis" --data 'service_id=2f0a285d-7b25-48d6-adc3-bbf28ffe5f47' --data "config.redis.host=127.0.0.1" --data "config.redis.port=6379" --data "config.redis.password=my_redis_password"
当我从该服务调用API时:
curl -i -X GET --url http://localhost:3002/v1/currency --header 'apikey: MY_API_KEY'
一切正常,但 X-Cache-Status 始终为绕过
HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Content-Length: 3654
Connection: keep-alive
X-RateLimit-Limit-second: 100
X-RateLimit-Remaining-second: 99
X-Cache-Key: 3e18cdfc6e02359fb0f874efdf5788d8
X-Cache-Status: Bypass
X-Powered-By: Express
...
如何调试绕过原因?
答案 0 :(得分:1)
要避免在X-Cache-Status中绕过,您必须在创建代理缓存插件时添加此配置
--data "config.content_type=application/json; charset=utf-8"
答案 1 :(得分:0)
Kong社区版随附的插件proxy-cache
仅允许内存中缓存。如果要使用Redis进行缓存,则必须使用Kong Enterprise版本。更多信息here
作为替代方案,Github上有一个名为kong-plugin-proxy-cache
的开源插件。您必须先从Luarocks安装插件,然后在Kong config中启用插件
# Install plugin dependency
sudo luarocks install lua-resty-redis-connector
# install plugin
sudo luarocks install kong-plugin-proxy-cache
# Enable plugin in kong.conf
plugins = bundled,proxy-cache
# After enabling, you can use plugin with any service, route or consumer.
# To enable it for a service
curl -X POST http://localhost:8001/services/<service-name>/plugins \
--data "name=proxy-cache" \
--data "config.cache_ttl=300" \
--data "config.cache_control=false" \
--data "config.redis.host=<redis-host>" \
--data "config.redis.port=<redis-port>"