标签:restart 负载 min 详细 raft 节点 protoc member ups
Docker Consul容器服务更新与发现[root@consul ~]# mkdir consul
[root@consul ~]# cp /opt/consul_0.9.2_linux_amd64.zip /root/consul/
[root@consul ~]# cd /root/consul/
[root@consul consul]# unzip consul_0.9.2_linux_amd64.zip
[root@consul consul]# ls
consul consul_0.9.2_linux_amd64.zip
[root@consul consul]# mv consul /usr/bin/
[root@docker consul]# consul agent \ //使用代理功能
-server \ //提供server功能
-bootstrap \ //参与选举为领袖
-ui \ //提供web访问界面
-data-dir=/var/lib/consul-data \ //参数存储位置
-bind=192.168.7.129 \ //绑定地址
-client=0.0.0.0 \ //面对所有节点终端
-node=consul-server01 &> /var/log/consul.log & //指定本地节点名称,指定日志文件目录,放在后台运行
2.查看集群信息
[root@consul consul]# consul members
Node Address Status Type Build Protocol DC
consul-server01 192.168.7.129:8301 alive server 0.9.2 2 dc1
[root@consul consul]# consul info | grep leader
leader = true
leader_addr = 192.168.7.129:8300
3.通过httpd api获取集群信息
[root@consul ~]# curl 127.0.0.1:8500/v1/status/peers //查看集群server成员
[root@consul ~]# curl 127.0.0.1:8500/v1/status/leader //查看领导者信息
[root@consul ~]# curl 127.0.0.1:8500/v1/catalog/services //注册的所有服务
[root@consul ~]# curl 127.0.0.1:8500/v1/catalog/nginx //查看nginx服务信息
[root@consul ~]# curl 127.0.0.1:8500/v1/catalog/nodes //集群节点详细信息
二、容器服务自动添加到nginx集群
1.安装Gliderlabs/Registrator
[root@docker ~]# docker run -d --name=registrator \ //指定名称
--net=host \ //指定网络
-v /var/run/docker.sock:/tmp/docker.sock \ //指定数据卷
--restart=always \ //restart功能
gliderlabs/registrator:latest -ip=192.168.7.168 \ //指定本地IP地址
consul://192.168.7.129:8500
2.添加nginx服务
[root@docker ~]# docker run -itd -p:83:80 --name test-01 -h test01 nginx
[root@docker ~]# docker run -itd -p:84:80 --name test-02 -h test02 nginx
[root@docker ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
960d01d212c4 nginx "nginx -g ‘daemon of…" 4 seconds ago Up 3 seconds 0.0.0.0:84->80/tcp test-02
bc075c1c3670 nginx "nginx -g ‘daemon of…" 59 seconds ago Up 57 seconds 0.0.0.0:83->80/tcp test-01
5dd120cd1232 gliderlabs/registrator:latest "/bin/registrator -i…" 3 minutes ago Up 3 minutes registrator
3.验证nginx服务是否注册到consul
在consul服务器上查看服务
[root@consul consul]# curl 127.0.0.1:8500/v1/catalog/services
{"consul":[],"nginx":[]}
4.准备template nginx模板文件
[root@consul ~]# vim /root/consul/nginx.ctmpl
upstream http_backend {
{{range service "nginx"}}
server {{.Address}}:{{.Port}};
{{end}}
}
server {
listen 83;
server_name localhost 192.168.7.129;
access_log /var/log/nginx/kgc.cn-access.log;
index index.html index.php;
location / {
proxy_set_header HOST $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Client-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://http_backend;
}
}
5.编译安装并配置nginx
[root@consul ~]# yum install gcc pcre-devel zlib-devel -y
[root@consul ~]# tar zxvf nginx-1.12.0.tar.gz -C /opt
[root@consul ~]# cd /opt/nginx-1.12.0
[root@consul ~]# ./configure --prefix=/usr/local/nginx
[root@consul ~]# make && make install
[root@consul ~]# vim /usr/local/nginx/conf/nginx.conf
http {
include mime.types;
include vhost/*.conf; //添加虚拟主机目录
default_type application/octet-stream;
#创建虚拟主机目录
[root@consul ~]# mkdir /usr/local/nginx/conf/vhost
#创建日志文件目录
[root@consul ~]# mkdir /var/log/nginx
#启动nginx
/usr/local/nginx/sbin/nginx
6.配置并启动template
上传consul-template_0.19.3_linux_amd64.zip到/root/consul目录下
[root@consul consul]# unzip consul-template_0.19.3_linux_amd64.zip
[root@consul consul]# mv consul-template /usr/bin
[root@consul consul]# consul-template -consul-addr 192.168.7.129:8500 -template "/root/consul/nginx.ctmpl:/usr/local/nginx/conf/vhost/aaa.conf:/usr/local/nginx/sbin/nginx -s reload" --log-level=info
#启动后,会在vhost目录下自动生成aaa.conf配置文件
[root@consul ~]# ls /usr/local/nginx/conf/vhost/
abc.conf
7.增加一个nginx容器节点,测试服务发现及配置更新功能(在registrator服务端增加
[root@docker ~]# docker run -itd -p:85:80 --name test-03 -h test03 nginx`
consul服务器监控会有提示自动更新
标签:restart 负载 min 详细 raft 节点 protoc member ups
原文地址:https://blog.51cto.com/14557905/2489997