consul 的安装及使用：
docker 单机版：
docker run -d --name consul_1 -p 8500:8500 -v /alldata/consul/data:/consul/data -v /alldata/consul/config:/consul/config consul agent -server -ui -bootstrap-expect=1 -node=s1 -enable-script-checks=true -bind=0.0.0.0 -client=0.0.0.0 -datacenter=dc1
安装：
wget https://releases.hashicorp.com/consul/1.5.3/consul_1.5.3_linux_amd64.zip
unzip consul_1.5.3_linux_amd64.zip
cp consul /usr/local/bin/
consul -v
consul agent -dev -ui -config-dir=/etc/consul.d -client=192.168.142.191 #开发版安装成功
consul agent -server -bootstrap -ui -bind=172.19.0.138 -client=0.0.0.0 -data-dir /consul/data -config-dir /etc/consul.d $server 安装成功
来源：https://blog.csdn.net/yaoshixian/article/details/100775935