GaGa's Blog

Vagrantfile

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Vagrant.configure("2") do |config|
    # 定义虚拟机数量
    vms = Array(1..3)
    vms.each do |i|
        config.vm.define "centos8-#{i}" do |node|
            # 设置虚拟机的Box
            node.vm.box = "centos8"
            # 设置虚拟机的主机名
            node.vm.hostname="centos8-#{i}"
            # 设置虚拟机的IP
            node.vm.network "private_network", ip: "172.24.20.4#{i}", hostname: true
            # 虚拟化设置cpu/mem
            node.vm.provider "virtualbox" do |v|
                # 设置虚拟机的名称
                v.name = "centos8-#{i}"
                # 设置虚拟机的内存大小  
                v.memory = 1024 
                # 设置虚拟机的CPU个数
                v.cpus = 1
            end
        end
    end
end

up log

mvpbang@mvpbang c8-4x % vagrant up
Bringing machine 'centos8-1' up with 'virtualbox' provider...
Bringing machine 'centos8-2' up with 'virtualbox' provider...
Bringing machine 'centos8-3' up with 'virtualbox' provider...
==> centos8-1: Importing base box 'centos8'...
==> centos8-1: Matching MAC address for NAT networking...
==> centos8-1: Setting the name of the VM: centos8-1
==> centos8-1: Clearing any previously set network interfaces...
==> centos8-1: Preparing network interfaces based on configuration...
    centos8-1: Adapter 1: nat
    centos8-1: Adapter 2: hostonly
==> centos8-1: Forwarding ports...
    centos8-1: 22 (guest) => 2222 (host) (adapter 1)
==> centos8-1: Running 'pre-boot' VM customizations...
==> centos8-1: Booting VM...
==> centos8-1: Waiting for machine to boot. This may take a few minutes...
    centos8-1: SSH address: 127.0.0.1:2222
    centos8-1: SSH username: vagrant
    centos8-1: SSH auth method: private key
    centos8-1: 
    centos8-1: Vagrant insecure key detected. Vagrant will automatically replace
    centos8-1: this with a newly generated keypair for better security.
    centos8-1: 
    centos8-1: Inserting generated public key within guest...
    centos8-1: Removing insecure key from the guest if it's present...
    centos8-1: Key inserted! Disconnecting and reconnecting using new SSH key...
==> centos8-1: Machine booted and ready!
==> centos8-1: Checking for guest additions in VM...
    centos8-1: No guest additions were detected on the base box for this VM! Guest
    centos8-1: additions are required for forwarded ports, shared folders, host only
    centos8-1: networking, and more. If SSH fails on this machine, please install
    centos8-1: the guest additions and repackage the box to continue.
    centos8-1: 
    centos8-1: This is not an error message; everything may continue to work properly,
    centos8-1: in which case you may ignore this message.
==> centos8-1: Setting hostname...
==> centos8-1: Configuring and enabling network interfaces...
==> centos8-1: Rsyncing folder: /Users/mvpbang/vagrants/c8-4x/ => /vagrant
==> centos8-2: Importing base box 'centos8'...
==> centos8-2: Matching MAC address for NAT networking...
==> centos8-2: Setting the name of the VM: centos8-2
==> centos8-2: Fixed port collision for 22 => 2222. Now on port 2200.
==> centos8-2: Clearing any previously set network interfaces...
==> centos8-2: Preparing network interfaces based on configuration...
    centos8-2: Adapter 1: nat
    centos8-2: Adapter 2: hostonly
==> centos8-2: Forwarding ports...
    centos8-2: 22 (guest) => 2200 (host) (adapter 1)
==> centos8-2: Running 'pre-boot' VM customizations...
==> centos8-2: Booting VM...
==> centos8-2: Waiting for machine to boot. This may take a few minutes...
    centos8-2: SSH address: 127.0.0.1:2200
    centos8-2: SSH username: vagrant
    centos8-2: SSH auth method: private key
    centos8-2: 
    centos8-2: Vagrant insecure key detected. Vagrant will automatically replace
    centos8-2: this with a newly generated keypair for better security.
    centos8-2: 
    centos8-2: Inserting generated public key within guest...
    centos8-2: Removing insecure key from the guest if it's present...
    centos8-2: Key inserted! Disconnecting and reconnecting using new SSH key...
==> centos8-2: Machine booted and ready!
==> centos8-2: Checking for guest additions in VM...
    centos8-2: No guest additions were detected on the base box for this VM! Guest
    centos8-2: additions are required for forwarded ports, shared folders, host only
    centos8-2: networking, and more. If SSH fails on this machine, please install
    centos8-2: the guest additions and repackage the box to continue.
    centos8-2: 
    centos8-2: This is not an error message; everything may continue to work properly,
    centos8-2: in which case you may ignore this message.
==> centos8-2: Setting hostname...
==> centos8-2: Configuring and enabling network interfaces...
==> centos8-2: Rsyncing folder: /Users/mvpbang/vagrants/c8-4x/ => /vagrant
==> centos8-3: Importing base box 'centos8'...
==> centos8-3: Matching MAC address for NAT networking...
==> centos8-3: Setting the name of the VM: centos8-3
==> centos8-3: Fixed port collision for 22 => 2222. Now on port 2201.
==> centos8-3: Clearing any previously set network interfaces...
==> centos8-3: Preparing network interfaces based on configuration...
    centos8-3: Adapter 1: nat
    centos8-3: Adapter 2: hostonly
==> centos8-3: Forwarding ports...
    centos8-3: 22 (guest) => 2201 (host) (adapter 1)
==> centos8-3: Running 'pre-boot' VM customizations...
==> centos8-3: Booting VM...
==> centos8-3: Waiting for machine to boot. This may take a few minutes...
    centos8-3: SSH address: 127.0.0.1:2201
    centos8-3: SSH username: vagrant
    centos8-3: SSH auth method: private key
    centos8-3: 
    centos8-3: Vagrant insecure key detected. Vagrant will automatically replace
    centos8-3: this with a newly generated keypair for better security.
    centos8-3: 
    centos8-3: Inserting generated public key within guest...
    centos8-3: Removing insecure key from the guest if it's present...
    centos8-3: Key inserted! Disconnecting and reconnecting using new SSH key...
==> centos8-3: Machine booted and ready!
==> centos8-3: Checking for guest additions in VM...
    centos8-3: No guest additions were detected on the base box for this VM! Guest
    centos8-3: additions are required for forwarded ports, shared folders, host only
    centos8-3: networking, and more. If SSH fails on this machine, please install
    centos8-3: the guest additions and repackage the box to continue.
    centos8-3: 
    centos8-3: This is not an error message; everything may continue to work properly,
    centos8-3: in which case you may ignore this message.
==> centos8-3: Setting hostname...
==> centos8-3: Configuring and enabling network interfaces...
==> centos8-3: Rsyncing folder: /Users/mvpbang/vagrants/c8-4x/ => /vagrant

Vagrant是一个用于创建和配置虚拟开发环境的工具，它允许开发者使用Vagrantfile来描述虚拟机的配置，并通过简单的命令来管理虚拟机的生命周期

Vagrant是一个用于创建和配置虚拟开发环境的工具，它使用 Vagrantfile（一种配置文件）来描述虚拟机的配置，并使用 VirtualBox、VMware、Hyper-V 等虚拟机软件来运行虚拟机。Vagrant 使得开发者可以在本地机器上快速搭建一个与生产环境相似的开发环境。

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ln -s /devdata/docker/ /var/lib/

2.3、重启docker
systemctl restart docker