Combine vagrant with virtualbox to quickly build a virtual machine:

Combine vagrant with virtualbox to quickly build a virtual machine:

1. Download the latest version of vagrant : Vagrant by HashiCorp (vagrantup.com)

2. Download the latest version of virtualbox: Oracle VM VirtualBox

3. Then build the virtual machine:

   1. Check the network card settings of our virtualbox

   2. Then set the storage location of our virtual machine globally

Come to the location where we saved the vagrant file

and open the dos command to initialize the file with all our heart

$ vagrant init centos/7
A Vagrantfile has been placed in this directory. You are now
ready to vagrant up your first virtual environment! Please read
the comments in the Vagrantfile as well as documentation on
vagrantup.com for more information on using Vagrant.

After executing the above command, the Vagrantfile file will be generated in the user's home directory

VagrantFile file:

Vagrant.configure("2") do |config|
   #遍历3次。生成3个
   (1..3).each do |i|
        config.vm.define "k8s-node#{i}" do |node|
            # 设置虚拟机的Box。指定本地的box文件
            node.vm.box = "centos/7"

            # 设置虚拟机的主机名
            node.vm.hostname="k8s-node#{i}"

            # 设置虚拟机的IP
            node.vm.network "private_network", ip: "192.168.56.#{99+i}", netmask: "255.255.255.0"

            # 设置主机与虚拟机的共享目录
            # node.vm.synced_folder "~/Documents/vagrant/share", "/home/vagrant/share"

            # VirtaulBox相关配置
            node.vm.provider "virtualbox" do |v|
                # 设置虚拟机的名称
                v.name = "k8s-node#{i}"
                # 设置虚拟机的内存大小
                v.memory = 4096
                # 设置虚拟机的CPU个数
                v.cpus = 4
            end
        end
   end
end

1. then start working

2. Since we are going to download centos/7 remotely, it will be very long to wait for the trial lecture, so we can download the file directly first.

3. Then add centos/7 to vagrant

   vagrant box add centos/7 D:\developsoft\CentOS-7-x86_64-Vagrant-1905_01.VirtualBox.box
   

4. Come to the installation directory (make sure to start virtualbox) Open the dos command box and enter the command

   vagrant up
   

5. To create a virtual machine:

Encountered problem one:

The problem is that virtualization is not turned on:

Solution: Turn on virtualization

Modify access:

Use vagrant's ssh to connect and use it

vagrant ssh 虚拟机名称

Then enter the file to modify:

vi /etc/ssh/sshd_config

Then restart the virtual machine:

service sshd restart