vagrant

base on ruby

init

vagrant init hashicorp/bionic64```

## base of vagrantfile
```bash
Vagrant.configure("2") do |config|
  config.vm.box = "hashicorp/bionic64"
end

default dir

Vagrantfile in your Vagrant home directory (defaults to ~/.vagrant.d). This lets you specify some defaults for your system user.

add

 vagrant box add --name my-box /path/to/the/new.box

ssh

 vagrant ssh <>

destroy

 vagrant destroy

up

 vagrant up

shell

The Vagrant Shell provisioner allows you to upload and execute a script within the guest machine.

 Vagrant.configure("2") do |config|
  config.vm.provision "shell",
    inline: "echo Hello, World"
end

options: inline,arg,env,

external script

Vagrant.configure("2") do |config|
  config.vm.provision "shell", path: "script.sh"
end

Vagrant.configure("2") do |config|
  config.vm.provision "shell", path: "https://example.com/provisioner.sh"
end

Vagrant.configure("2") do |config|
  config.vm.provision "shell",
    inline: "/bin/sh /path/to/the/script/already/on/the/guest.sh"
end

Vagrant.configure("2") do |config|
  config.vm.provision "shell" do |s|
    s.inline = "echo $1"
    s.args   = "'hello, world!'"
  end
end

reload

vagrant reload --provision

synced_folder

Vagrant.configure("2") do |config|
  # other config here

  config.vm.synced_folder "src/", "/srv/website"
end

Vagrant.configure("2") do |config|
  config.vm.synced_folder "src/", "/srv/website", disabled: true
end

config.vm.synced_folder "src/", "/srv/website",
  owner: "root", group: "root"

config.vm.synced_folder ".", "/vagrant", owner: "vagrant",
  group: "vagrant", mount_options: ["uid=1234", "gid=1234"]

network

Vagrant.configure("2") do |config|
  # ...
  config.vm.network "forwarded_port", guest: 80, host: 8080
end

Enabling Networks

Networks are automatically configured and enabled after they've been defined in the Vagrantfile as part of the vagrant up or vagrant reload process.

hostname

Vagrant.configure("2") do |config|
  # ...
  config.vm.hostname = "myhost.local"
end

ip

Vagrant.configure("2") do |config|
  # ...
  config.vm.hostname = "myhost.local"
  config.vm.network "public_network", ip: "192.168.0.1", hostname: true
  config.vm.network "public_network", ip: "192.168.0.2"
end

provider

Configuring a specific provider looks like this:

Vagrant.configure("2") do |config|
  # ...

  config.vm.provider "virtualbox" do |vb|
    vb.customize ["modifyvm", :id, "--cpuexecutioncap", "50"]
  end
end

Overriding Configuration

Vagrant will use the "bionic64" box by default, but will use "bionic64_fusion" if the VMware Fusion provider is used.

 config.vm.provider "virtualbox" do |vb|
    vb.customize ["modifyvm", :id, "--cpuexecutioncap", "50"]
  end
end

multi-box with one config

NodeType1 is set to 3. In this case, (1..3).each would execute the block of code 3 times, with type1_id taking on the values 1, 2, and 3 in each iteration. This would result in the creation of three virtual machines with names “type11”, “type12”, and “type13”, each with the specified configurations.

Vagrant.configure(2) do |config|
  config.vm.provision "shell", patlh: "bootstrap.sh"

  NodeType1 = 3
  (1..NodeType1).each do |type1_id|
    config.vm.define "type1#{type1_id}" do |type1_vm|
      type1_vm.vm.box = IMAGE_2204
      type1_vm.vm.hostname = "type1#{type1_id}"
      type1_vm.vm.network "private_network", ip: "192.168.56.10#{type1_id}"
      type1_vm.vm.provider "virtualbox" do |v|
        v.name = "type1#{type1_id}"
        v.memory = 1024
        v.cpus = 1
      end
      type1_vm.vm.provision "shell", path: "bootstrap_t1.sh"
    end

Suppose you change NodeType1 to 2. In that case, the loop (1..NodeType1).each would iterate twice. This would create two virtual machines with the names “type11” and “type12”, each with the specified configurations, and provision them with the “bootstrap_t1.sh” script.

ENV['VAGRANT_NO_PARALLEL'] = 'yes' line sets an environment variable named VAGRANT_NO_PARALLEL to the value 'yes'. This specific setting tells Vagrant not to run multiple virtual machines in parallel

ENV['VAGRANT_NO_PARALLEL'] = 'yes'