环境安装
安装Consul
1.下载consul_0.7.5_linux_amd64.zip
mkdir -p /usr/local/consul
cd /usr/local/consul
wget https://releases.hashicorp.com/consul/0.7.5/consul_0.7.5_linux_amd64.zip
2.解压consul_0.7.5_linux_amd64.zip
unzip consul_0.7.5_linux_amd64.zip
3. 执行以下 ./consul 出现以下信息就说明安装成功
4.启动consul(后面写上IP地址)
./consul agent -dev -ui -node=consul-dev -client=192.168.202.132
5.临时关闭防火墙
systemctl stop firewalld
6.浏览器访问192.168.202.132:8500
consul安装成功!
7.使用PostMan 注册Http服务
http://192.168.202.132:8500/v1/catalog/register
{"Datacenter": "dc1", "Node":"tomcat", "Address":"192.168.202.1","Service": {"Id" :"192.168.202.1:8080", "Service": "jeecg-boot","tags": ["dev"], "Port": 8080}}
{"Datacenter": "dc1", "Node":"tomcat", "Address":"192.168.202.1","Service": {"Id" :"192.168.202.1:8081", "Service": "jeecg-boot","tags": ["dev"], "Port": 8081}}
Datacenter指定数据中心,Address指定服务IP,Service.Id指定服务唯一标识,Service.Service指定服务分组,Service.tags指定服务标签(如测试环境、预发环境等),Service.Port指定服务端口。
安装upsync
作用:nginx动态获取最新upstream信息
cd /usr/local
wget https://github.com/weibocom/nginx-upsync-module/archive/master.zip
下载不下来的话用浏览器下载,上传到/usr/local,然后使用unzip解压即可.
安装nginx
1.在安装nginx前首先要确认系统中安装了gcc、pcre-devel、zlib-devel、openssl-devel,没有则安装
//一键安装上面四个依赖
yum -y install gcc zlib zlib-devel pcre-devel openssl openssl-devel
2.下载并解压安装包
//创建一个文件夹
cd /usr/local
mkdir nginx
cd nginx
wget https://nginx.org/download/nginx-1.9.9.tar.gz
3.解压
tar -zxvf nginx-1.9.9.tar.gz
4.进入nginx目录并配置安装目录
groupadd nginx
useradd -g nginx -s /sbin/nologin nginx
mkdir -p /var/tmp/nginx/client/
cd nginx-1.9.9/
5.编译Nginx
./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --with-http_realip_module --http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/ --http-fastcgi-temp-path=/var/tmp/nginx/fcgi/ --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi --http-scgi-temp-path=/var/tmp/nginx/scgi --with-pcre --add-module=../nginx-upsync-module-master
make && make install
6.Upstream 动态配置
upsync_dump_path指定从consul拉取的上游服务器后持久化到的位置,这样即使consul服务器出问题了,本地还有一个备份。
mkdir /usr/local/nginx/conf/servers/
upstream jeecg-boot{
server 127.0.0.1:11111;
upsync 192.168.202.132:8500/v1/kv/upstreams/test
upsync_timeout=6m
upsync_interval=500ms
upsync_type=consul strong_dependency=off;
upsync_dump_path /usr/local/nginx/conf/servers/servers_test.conf;
}
server {
listen 80;
server_name localhost;
location / {
proxy_pass http://jeecg-boot;
index index.html index.htm;
}
}
upsync指令指定从consul哪个路径拉取上游服务器配置;upsync_timeout配置从consul拉取上游服务器配置的超时时间;upsync_interval配置从consul拉取上游服务器配置的间隔时间;upsync_type指定使用consul配置服务器;strong_dependency配置nginx在启动时是否强制依赖配置服务器,如果配置为on,则拉取配置失败时nginx启动同样失败。upsync_dump_path指定从consul拉取的上游服务器后持久化到的位置,这样即使consul服务器出问题了,本地还有一个备份。