下载consul-template

https://releases.hashicorp.com/consul-template/0.20.0/

https://releases.hashicorp.com/consul-template/0.20.0/consul-template_0.20.0_windows_amd64.zip

开始监听

consul-template -consul-addr 127.0.0.1:8500 -template "./consulconf/1.tpl:./consulconf/1.conf:nginx -s reload

nginx配置
stream

stream {
upstream demo {
        {{ range service "grpc" }}
        server {{ .Address }}:{{ .Port }} weight=1;{{ end }}
        
        server 127.0.0.1:79 fail_timeout=0;
    }


server {
        listen 12345;
        proxy_connect_timeout 10s;
        proxy_timeout 30s;
        proxy_pass demo;
    }
}

http

upstream aa{
        {{ range service "web" }}
    server {{ .Address }}:{{ .Port }} weight=1;{{ end }}
    
    server 127.0.0.1:79 fail_timeout=0;
}
server {
    listen       81;
    server_name  localhost;
    location / {
       proxy_pass http://aa;
    }


}

删除consul服务

curl --request PUT http://127.0.0.1:8500/v1/agent/service/deregister/webB

添加服务

curl --request PUT --data @siteA.json http://localhost:8500/v1/agent/service/register
{
    "ID":"webA",
    "Name":"web",
    "Tags":[],
    "Address":"192.168.2.101",
    "Port":8080,
    "Checks":[{
        "http":"http://192.168.2.101:8080/1.html",
        "interval":"5s"
    }],    
    "EnableTagOverride":false
}

注意事项

consul 以服务方式启动 才会持久化数据

consul agent -server -ui -bootstrap-expect=1 -data-dir=./consul -node=agent-one -advertise=127.0.0.1 -bind=0.0.0.0 -client=0.0.0.0

-server：服务器模式

-ui:能webui展示

-bootstrap-expect：server为1时即选择server集群leader

-data-dir:consul状态存储文件地址

-node：指定结点名

advertise：本地ip地址

-client:指定可访问这个服务结点的ip

注意 Cluster Addr集群地址是我们上面advertise指定的ip地址