Detecting machine state in Vagrantfile

[Sam Kaplan]

Hi,

In a Vagrantfile, is it possible to detect whether a machine is already created? I'm trying to run a block of code only if "vagrant up" is creating a new box (and not when re-booting an existing one).

Even a provider-specific method would be helpful -- I'm only using Virtualbox.

Thanks,
Sam

[Alvaro Miranda Aguilera]

Hello

By default provisioning scripts only run at creation time.

Next time you do vagrant up/reload the provisioning doesn't run at all.

If there are some provisioning you want to have always to run, you can add    

,run: "always"

Does this helps?

Alvaro

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[Sam Kaplan]

Not quite...I'm not worried about provisioning scripts in this case.

I have a block in my Vagrantfile like:

  config.vm.provider "virtualbox" do |vb|
    vb.cpus = ENV["VAGRANT_CPU"] || "2"
    vb.memory = ENV["VAGRANT_MEM"] || "2048"
  end

so you can specify cpu and memory size in environment variables. But this also means you have to specify them every time you boot the machine, or they will get overwritten by the defaults. If I had a way to detect that the machine was already created, then I could avoid setting the config values in that case.

Thanks,
Sam

On Wednesday, November 15, 2017 at 3:46:37 AM UTC-5, Alvaro Miranda Aguilera wrote:

Hello

By default provisioning scripts only run at creation time.

Next time you do vagrant up/reload the provisioning doesn't run at all.

If there are some provisioning you want to have always to run, you can add    

,run: "always"

Does this helps?

Alvaro

On Mon, Nov 13, 2017 at 9:50 PM, Sam Kaplan <stka...@gmail.com> wrote:

Hi,

In a Vagrantfile, is it possible to detect whether a machine is already created? I'm trying to run a block of code only if "vagrant up" is creating a new box (and not when re-booting an existing one).

Even a provider-specific method would be helpful -- I'm only using Virtualbox.

Thanks,
Sam

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Alvaro

[Alvaro Miranda Aguilera]

Hello

There was an old email once that used ruby magic to detect if the id of the vm existed, but i don't think is needed.

check for a local file, if doesn't exist, set those values.

and in a provision script, just do `touch /vagrant/.provisioned` or similar.

will be more easy to read.

My 2 cents

alvaro.

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Alvaro