是否可以定义在流浪者销毁之前发生的事情？

问题描述

我有一个，它在 vagrant上克隆了所需的菜谱库上。问题是，它也在无用销毁上执行此操作。有没有一种方法可以定义 pre-construction和 pre-destruction命令，或者每次调用vagrant时，Vagrantfile都会完全运行而与参数无关？

I have a Vagrantfile that clones the required cookbook repos on vagrant up. The problem is, it also does this on vagrant destroy. Is there a way to define 'pre-construction' and 'pre-destruction' commands or does the Vagrantfile just get run in totality each time vagrant is invoked regardless of the parameters?

推荐答案

我不知道销毁钩子，但是您可以通过检查计算机ID是否存在来检测Vagrantfile中的首次操作和后破坏操作：

I don't know about a destroy hook, but you can detect first time and post-destoy actions in the Vagrantfile by checking the existence of the machine ID:

File.exists?(".vagrant/machines/default/virtualbox/id")

我用它来插入机器的公共密钥，这使我可以自动设置安全的SSH密钥：

I use this to drop in the public key for the machine, which allows me to setup a secure SSH key automatically:

if ! File.exists?(".vagrant/machines/default/virtualbox/id")
    # Then this machine is brannd new.
    system "cp #{KEYS_DIR}/workstation.pub #{OUR_DIR}"
end

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