How do I loop vagrant provisioning in multi-machine environments to switch back and forth between machines?

Question

I have a multi-machine Vagrantfile setting up a 5 node environment.

I've been looking around to see what levels of control you have over the order of provisioning, but it's pretty limited:

https://docs.vagrantup.com/v2/multi-machine/

I want to provision 5 nodes, then go back to the first node, and run other provisioning steps there.

What I mean is that you have a Vagrantfile like this:

Vagrant.configure('2') do |config|
   config.vm.provision some stuff

   config.vm.define 'node1' do |node1|
      node1.vm.provision some more stuff
   end

   config.vm.define 'node2' do |node2|
      node2.vm.provision some other stuff
   end

   ... node3 node4 node 5 ...
end

But after vagrant has finished starting and provisioning the all the machines up to node5, I then want to run another provisioner on node1. Does anyone know how to do this? Maybe some ruby hackery?

Answer 1

If what you want is to have that other provisioner to run automagically right after all the machines have been vagrant uped, unfortunately there's no way to do that as far as I know, Vagrant will allways run all the provisioners specified (unless you tell it to run just a subset of them).

The only way you might be able to emulate would be having different kinds of provisioners for each machine and selectively running them as needed. So, for example, you'd vagrant up --provision --provision-with=shell and then run a vagrant provision --provision-with chef_solo to have the shell provisioners run first and the chef_solo provisioning afterwards

But, if you want to manually fire up a provisioner after all the machines have been brought up you can just use the vagrant provision command to accomplish that.