使用"vagrant up"启动流浪汉机器后打印消息

Question

我需要在vagrant up命令完成时显示一条消息.

我试过定义一个函数:

def hello
    puts 'hello'
end

然后调用它和文件的结尾:

hello 

但它始终打印在输出的开头而不是结尾.我怎么能在最后打印一条消息？

Answer 1

Vagrant现在内置支持消息显示vagrant up.只需将此添加到您的Vagrantfile:

config.vm.post_up_message = "This is the start up message!"

然后在您的VM出现后,您将看到绿色的此消息:

==> default: Machine 'default' has a post `vagrant up` message. This is a message
==> default: from the creator of the Vagrantfile, and not from Vagrant itself:
==> default:
==> default:     This is the start up message!

Answer 2

您也可以使用HEREDOC样式变量,如下config.vm.post_up_message所示:

$msg = <<MSG
------------------------------------------------------
Local Websphere, accessible at 127.0.0.1

URLS:
 - app under test  - http://localhost:8080/<app url>/
 - ibm console     - http://localhost:9060/ibm/console

------------------------------------------------------
MSG

...
...

Vagrant.configure("2") do |config|
  config.vm.post_up_message = $msg
end

这将产生如下输出:

==> default: Machine 'default' has a post `vagrant up` message. This is a message
==> default: from the creator of the Vagrantfile, and not from Vagrant itself:
==> default:
==> default: ------------------------------------------------------
==> default: Local Websphere, accessible at 127.0.0.1
==> default:
==> default: URLS:
==> default:  - app under test  - http://localhost:8080/<app url>/
==> default:  - ibm console     - http://localhost:9060/ibm/console
==> default:
==> default: ------------------------------------------------------

Answer 3

Vagrant最后不需要插件来显示消息,只需在所有其他配置程序之后添加一个shell配置程序,并根据需要进行回显.

config.vm.provision "ansible" do |ansible|
  # ... or other existing provisioners

config.vm.provision "shell", privileged: false, inline: <<-EOF
  echo "Vagrant Box provisioned!"
  echo "Local server address is http://#{$hostname}"
EOF

有了这个,vagrant up应该结束这样的事情:

==> default: Running provisioner: shell...
    default: Running: inline script
==> default: Vagrant Box provisioned!
==> default: Local server address is http://vagrant.dev

添加privileged: false(如Vagrant Issue 1673中所述)对于抑制Ubuntu的stdin: is not a tty错误是必要的.

Answer 4

一旦我开始学习Ruby,我就找到了理想的解决方案:)

BEGIN声明在程序运行之前要调用的代码.

#!/usr/bin/ruby
puts "This is main Ruby Program"
BEGIN {
    puts "Initializing Ruby Program"
}

它会产生这个:

Initializing Ruby Program
This is main Ruby Program

它在Vagrantfile中完美运行.

Answer 5

尝试vagrant-triggers插件:

$ vagrant plugin install vagrant-triggers

然后加:

config.trigger.after :up do
  puts 'hello'
end

到了Vagrantfile.