Consul
spring-cloud-consul
nginx-upsync
tengine-dyups
两者结合
- spring boot application 启动后注册到 service
- 写一个Daemon程序，监控consul上的所有注册services
- 当有变化的时候，将变化值写入consul key-value中，给nginx-upsync使用
- 是有一定延迟，但是代码修改量很少
服务启动完成后，调用注册接口；停止之前，调用注销接口；并且提供一个health接口，用于健康检测。
注册
调用本地consul agent接口: POST /v1/agent/service/register，如下:
curl -s -i -XPOST 'localhost:8500/v1/agent/service/register' -H 'Content-type:application/json' -d @register-body.json
register-body.json
{
"ID": "${SERVICE_ID}",
"Name": "${SERVIEC_NAME}",
"Tags": [
],
"Address": "${SERVICE_IP}",
"Port": ${SERVICE_PORT},
"EnableTagOverride": false,
"Check": {
"DeregisterCriticalServiceAfter": "5m",
"HTTP": "http://${SERVICE_IP}:${SRVICE_PORT}/management/health",
"Interval": "10s",
"Timeout": "1s"
}
}
SERVICE_NAME: 服务名
SERVICE_ID: 用于区分同种服务的不同实例, 可以设置为 {SERVICE_ID}-{SERVICE_PORT}-{RANDOM_VALUE}
${xxx}的地方需要替换掉
注销
调用本地consul agent接口: POST /v1/agent/service/deregister/{serviceId}
curl -s -i -XPOST "localhost:8500/v1/agent/service/deregister/${serviceId}"
服务提供一个health接口
- 服务本身提供一个check health的http接口
URL: `/management/health` Response: 正常返回status code 200