第四章 consul cluster

1、vagrant

为了模拟集群效果，使用vagrant。

1.1、首先下载vagrant

https://www.vagrantup.com/downloads.html

说明：浏览器下载可能比较慢，可以通过迅雷下载。

1.2、下载之后，安装vagrant

mac中下一步到底就可以。

说明：虽然vagrant需要依赖于virtualbox，需要事先安装。

1.3、打开终端，启动vagrant

1.3.1、初始化：

第四章 consul cluster

说明：以上是安装64bit的Linux系统（Ubuntu）,32bit的将数字改为32即可。

参考：https://liuzhichao.com/p/1940.html

1.3.2、修改Vagrantfile文件

第四章 consul cluster

说明：ruby写的，内容改为如下：

 # -*- mode: ruby -*-

 # vi: set ft=ruby :

 $script = <<SCRIPT

 echo Installing dependencies...

 sudo apt-get update

 sudo apt-get install -y unzip curl

 echo Fetching Consul...

 cd /tmp/

 wget https://releases.hashicorp.com/consul/0.6.1/consul_0.6.1_linux_amd64.zip -O consul.zip

 echo Installing Consul...

 unzip consul.zip

 sudo chmod +x consul

 sudo mv consul /usr/bin/consul

 sudo mkdir /etc/consul.d

 sudo chmod a+w /etc/consul.d

 SCRIPT

 # Vagrantfile API/syntax version. Don't touch unless you know what you're doing!

 VAGRANTFILE_API_VERSION = ""

 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

   config.vm.box = "debian/wheezy64"

   config.vm.provision "shell", inline: $script

   config.vm.define "n1" do |n1|

       n1.vm.hostname = "n1"

       n1.vm.network "private_network", ip: "172.20.20.10"

   end

   config.vm.define "n2" do |n2|

       n2.vm.hostname = "n2"

       n2.vm.network "private_network", ip: "172.20.20.11"

   end

 end

该文件内容是consul官方推荐的demo。这一块儿内容可以根据实际情况去修改。（我将节点的IP自己指定了一下，尽量不要与自己本机的IP一样，否则可能会影响一些功能），以下是我的配置。

 # -*- mode: ruby -*-

 # vi: set ft=ruby :

 $script = <<SCRIPT

 echo Installing dependencies...

 sudo apt-get update

 sudo apt-get install -y unzip curl

 echo Fetching Consul...

 cd /tmp/

 wget https://releases.hashicorp.com/consul/0.6.1/consul_0.6.1_linux_amd64.zip -O consul.zip

 echo Installing Consul...

 unzip consul.zip

 sudo chmod +x consul

 sudo mv consul /usr/bin/consul

 sudo mkdir /etc/consul.d

 sudo chmod a+w /etc/consul.d

 SCRIPT

 # Vagrantfile API/syntax version. Don't touch unless you know what you're doing!

 VAGRANTFILE_API_VERSION = ""

 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

   config.vm.box = "debian/wheezy64"

   config.vm.provision "shell", inline: $script

   config.vm.define "n110" do |n1|

       n1.vm.hostname = "n110"

       n1.vm.network "private_network", ip: "192.168.21.110"

   end

   config.vm.define "n111" do |n2|

       n2.vm.hostname = "n111"

       n2.vm.network "private_network", ip: "192.168.21.111"

   end

 end