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：

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

说明：ruby写的，内容改为如下：

 1 # -*- mode: ruby -*-
 2 # vi: set ft=ruby :
 3 $script = <<SCRIPT
 4 echo Installing dependencies...
 5 sudo apt-get update
 6 sudo apt-get install -y unzip curl
 7 echo Fetching Consul...
 8 cd /tmp/
 9 wget https://releases.hashicorp.com/consul/0.6.1/consul_0.6.1_linux_amd64.zip -O consul.zip
10 echo Installing Consul...
11 unzip consul.zip
12 sudo chmod +x consul
13 sudo mv consul /usr/bin/consul
14 sudo mkdir /etc/consul.d
15 sudo chmod a+w /etc/consul.d
16 SCRIPT
17 
18 # Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
19 VAGRANTFILE_API_VERSION = "2"
20 
21 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
22   config.vm.box = "debian/wheezy64"
23 
24   config.vm.provision "shell", inline: $script
25 
26   config.vm.define "n1" do |n1|
27       n1.vm.hostname = "n1"
28       n1.vm.network "private_network", ip: "172.20.20.10"
29   end
30 
31   config.vm.define "n2" do |n2|
32       n2.vm.hostname = "n2"
33       n2.vm.network "private_network", ip: "172.20.20.11"
34   end
35 end

View Code

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。

 1 # -*- mode: ruby -*-
 2 # vi: set ft=ruby :
 3 $script = <<SCRIPT
 4 echo Installing dependencies...
 5 sudo apt-get update
 6 sudo apt-get install -y unzip curl
 7 echo Fetching Consul...
 8 cd /tmp/
 9 wget https://releases.hashicorp.com/consul/0.6.1/consul_0.6.1_linux_amd64.zip -O consul.zip
10 echo Installing Consul...
11 unzip consul.zip
12 sudo chmod +x consul
13 sudo mv consul /usr/bin/consul
14 sudo mkdir /etc/consul.d
15 sudo chmod a+w /etc/consul.d
16 SCRIPT
17 
18 # Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
19 VAGRANTFILE_API_VERSION = "2"
20 
21 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
22   config.vm.box = "debian/wheezy64"
23 
24   config.vm.provision "shell", inline: $script
25 
26   config.vm.define "n110" do |n1|
27       n1.vm.hostname = "n110"
28       n1.vm.network "private_network", ip: "192.168.21.110"
29   end
30 
31   config.vm.define "n111" do |n2|
32       n2.vm.hostname = "n111"
33       n2.vm.network "private_network", ip: "192.168.21.111"
34   end
35 end