安装部署Consul
- 下载解压,加入PATH。
- 启用单节点:consul agent -dev ./consul agent -server -ui -bootstrap-expect=1 -data-dir=/tmp/consul -advertise=127.0.0.1 -bind=0.0.0.0 -client=0.0.0.0 > /dev/null 2>&1 &
- 查看consul成员:consul members (-detailed)
服务命令
- 注册服务:定义服务配置文件,启动时指定–config-dir=目录。目录一般建立于/etc/consul.d
echo ‘{“service”: {“name”: “web”, “tags”: [“rails”], “port”: 80}}’ > ./consul.d/web.json - 查询服务:curl http://localhost:8500/v1/catalog/service/web
- 查询健康实例:curl 'http://localhost:8500/v1/health/service/web?passing
通过HTTP API来实现如下,参考地址:https://www.consul.io/api/agent/service.html
-
获取单个服务信息: curl http://127.0.0.1:8500/v1/agent/service/serviceIdxxxx
-
获取服务列表:curl http://10.173.2.130:38500/v1/agent/services
-
获取健康的服务(可根据名称或ID):
curl localhost:8500/v1/agent/health/service/name/servicenamexxx
或curl localhost:8500/v1/agent/health/service/id/serviceidxxx
或curl xxxx?format=text,及指定返回格式
(默认情况下ID与serviceName相同,建议使用ID,因为名称不是唯一的),对于不存在的service会返回
{
“AggregatedStatus”: “critical”,
“Service”: null,
“Checks”: null
}
/v1/agent/health/service/id/:service_id
-
注册服务:
请求方式只支持PUT,请求参数过多时,建议放在文件里面。
curl --request PUT --data @emptySeatRateApp.json http://127.0.0.1:8500/v1/agent/service/register -
取消注册:
curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/serviceId 或name -
启用UI: consul agent -dev -client 0.0.0.0 -ui -config-dir=.
注意:-client 0.0.0.0 表示所有客户端都可以访问 -
获取所有节点:
http://127.0.0.1:8500/v1/agent/members?segment=_all
Consul其他命令
- consul重载: consul reload,将会应用上次启动的命令参数。
consul服务代理:
{
“service”: {
“name”: “webtest”,
“port”: 8080,
“connect”: { //为webtest服务建立代理
“sidecar_service”: {
“proxy”: {
“upstreams”: [{ //代理服务器上游服务器
“destination_name”: “socat”,
“local_bind_port”: 9191 //代理服务器监听端口,同时也是目标服务器与上游器间通信的端口?
}]
}
}
}
}
}
- consul集群:
docker exec -d consul01 consul agent -ui -client 0.0.0.0 -server -bootstrap-expect=1 -data-dir=/tmp/consul -node=agent-one -enable-script-checks=true -bind=172.17.0.2
docker exec -d consul02 consul agent -ui -client 0.0.0.0 -data-dir=/tmp/consul -node=agent-two -enable-script-checks=true -bind=172.17.0.3
docker exec -d consul01 consul join 172.17.0.3
consul agent -server -bootstrap-expect=1
-data-dir=/tmp/consul -node=agent-one -bind=10.134.53.94
-enable-script-checks=true -config-dir=/usr/soft/consul.d
docker run --name consul01 -p 8500:8500 -d -i -t yckjdnmy/consul:v1 /bin/bash
docker run --name consul02 -p 8501:8500 -d -i -t yckjdnmy/consul:v1 /bin/bash
docker exec -d consul01 curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/aifunc-aggregate-api-server-2-0-1-18-8080
docker exec -d consul01 curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/aifunc-helmetdetect-api-server-2-0-1-27-8082
docker exec -d consul01 curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/aifunc-helmetdetect-api-server-2-0-1-27-8082
docker exec -d consul01 curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/yc-emptablerate-spring-cloud-client-ipAddress-9090
docker exec -d consul01 curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/aifunc-aggregate-api-server-192-168-198-1-8080