从集群内部访问 Vagrant VM (Virtualbox 运行 Centos/7)

Question

我目前正在尝试使用 ansible，对于那个用例，我已经使用 VirtualBox 和 Vagrant 设置了一个由 3 个虚拟机组成的集群。现在我的 VM-Setup 看起来像这样

Vagrantfile

$inline_m1 = <<SCRIPT
yum -y update

yum install -y git
yum install -y ansible

SCRIPT

$inline_n1_n2 = <<SCRIPT
yum -y update

yum install -y git

SCRIPT

Vagrant.configure(2) do |config|
 config.vm.define "master1" do |conf|
    # conf.vm.box = "peru/my_centos-7-x86_64"
    # conf.vm.box_version = "20181211.01"
    conf.vm.box = "centos/7"

    conf.vm.hostname = 'master1.vg'
    conf.vm.network "private_network", ip: "192.168.255.100"
    conf.vm.provider "virtualbox" do |v|
        v.memory = 6144
        v.cpus = 2
    end
    conf.vm.provision "shell", inline: $inline_m1
    conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc/hosts"
    conf.vm.provision "file", source: "./master1/etc.ansible.hosts", destination: "~/etc/ansible.hosts"
 end

 config.vm.define "node1" do |conf|
    conf.vm.box = "centos/7"
    conf.vm.hostname = 'node1.vg'
    conf.vm.network "private_network", ip: "192.168.255.101"
    conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc/hosts"
    conf.vm.provision "shell", inline: $inline_n1_n2
 end

 config.vm.define "node2" do |conf|
    conf.vm.box = "centos/7"
    conf.vm.hostname = 'node2.vg'
    conf.vm.network "private_network", ip: "192.168.255.102"
    conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc/hosts"
    conf.vm.provision "shell", inline: $inline_n1_n2

 end
end

所以是1主2节点。 master 应该安装了 ansible 并通过 ssh 访问节点。所以所有机器都启动并运行，我可以使用

连接到我的主机

vagrant ssh master1

我也修改了 etc/hosts，所以我可以到达 master1.vg、node1.vg 等

但是有一个问题。我应该通过 ssh 连接到主机内部的节点。但是

ssh node1.vg

将无法工作，因为要求输入密码后权限被拒绝。根据文档，默认密码应为 "vagrant" 但此处并非如此。（我猜是因为访问方法已经设置为使用密钥的 ssh）。我在谷歌上搜索了很多，因为我认为这是一个常见问题，但没有找到令人满意的答案。您知道如何通过 ssh 从 master1 虚拟机连接到其中一个节点虚拟机吗？

我也已将配置上传到存储库 (https://github.com/relief-melone/vagrant-ansibletestingsetup)

Answer 1

好的，我现在解决了。现在 Vagrant 将生成您的私钥，您需要将该密钥以正确的权限获取到您的主虚拟机中。您还需要正确设置网络。所以让我们先解决网络点。

您的 /etc/hosts 必须进行设置。在我的设置中它看起来像这样

/etc/hosts

192.168.255.100 master1.me.vg
192.168.255.101 node1.me.vg
192.168.255.102 node2.me.vg

您的私钥将存储在./.vagrant/machines/nodeX/virtualbox/private_key中。您将需要您想要从您的主人访问的所有节点，所以这给我们留下了以下内容

Vagrantfile

Vagrant.configure(2) do |config|

   config.vm.define "node1" do |conf|
      conf.vm.box = "centos/7"
      conf.vm.hostname = 'node1.me.vg'
      conf.vm.network "private_network", ip: "192.168.255.101"

      conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc.hosts"

      conf.vm.provision "shell", path: "./node/shell.sh"

   end

   config.vm.define "node2" do |conf|
      conf.vm.box = "centos/7"
      conf.vm.hostname = 'node2.me.vg'
      conf.vm.network "private_network", ip: "192.168.255.102"

      conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc.hosts"

      conf.vm.provision "shell", path: "./node/shell.sh"

   end
   config.vm.define "master1" do |conf|
      conf.vm.box = "centos/7"

      conf.vm.hostname = 'master1.me.vg'
      conf.vm.network "private_network", ip: "192.168.255.100"

      conf.vm.provider "virtualbox" do |v|
          v.memory = 6144
          v.cpus = 2
      end
      conf.vm.provision "file", source: "./etc.hosts", destination: "~/etc.hosts"
      conf.vm.provision "file", source: "./master1/etc.ansible.hosts", destination: "~/etc.ansible.hosts"
      conf.vm.provision "file", source: "./.vagrant/machines/node1/virtualbox/private_key", destination: "~/keys/node1"
      conf.vm.provision "file", source: "./.vagrant/machines/node2/virtualbox/private_key", destination: "~/keys/node2"

      conf.vm.provision "shell", path: "./master1/shell.sh"
   end

end

最后你必须设置私钥的权限，因为过于开放的权限设置将在稍后的 ssh 上被拒绝。我的 shell 文件看起来像这样

./master1/shell.sh

yum 

-y update

yum install -y git
yum install -y ansible

cp /home/vagrant/etc.hosts /etc/hosts
cp /home/vagrant/etc.ansible.hosts /etc/ansible/hosts

chmod 600 /home/vagrant/keys/*

./node/shell.sh

yum -y update

yum install -y git

cp /home/vagrant/etc.hosts /etc/hosts

完成之后

vagrant up

应该运行顺利，你可以使用

进入你的主虚拟机

vagrant ssh master1

在该主控中，您现在可以连接到例如使用

的 node2 机器

ssh -i ~/keys/node2

因为这是一个包含大量文件的集合，所以我也把它放到了一个 repo 中，可以在这里找到

https://github.com/relief-melone/vagrant-ansibletestingsetup/tree/working-no-comments

从集群内部访问 Vagrant VM (Virtualbox 运行 Centos/7)

Accessing Vagrant VM (Vitualbox running Centos/7) from inside cluster

ssh

login

vagrant

centos7