How set machine as primary in dynamic Multi-Machine scenario?

[Joaquin Menchaca]

The docs say, for making one machine a primary, you can do:

config.vm.define "web", primary: true do |web|
  # ...
end

How do you do it, if you bring these up dynamically, such as a hosts file? 

nodes = Hash.new
File.readlines('config/global.hosts').map(&:chomp).each do |line|
  ipaddr, nodename = line.split(" ")
  nodes[nodename] = ipaddr
end

Vagrant.configure("2") do |config|
  nodes.each do |nodename, ipaddr|
    config.vm.define nodename do |node|
      node.vm.box = "ubuntu/trusty64"
      node.vm.hostname = "#{nodename}"
      node.vm.network "private_network", ip: ipaddr
      node.vm.provider("virtualbox") { |vbox| vbox.name = "#{nodename}" }
      node.vm.provision "shell", path: "scripts/#{nodename}.sh"
    end
  end
end 

[Alvaro Miranda Aguilera]

Hello,

Vagrant bxes are created top to bottom,

So the first VM created can be used to copy/create files to the other boxes.

You could create files with an script, or have a file in the current directory and that will be available in /vagrant/ directory

so you could use that to distribute a file.

Thanks

Alvaro.

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[Joaquin Menchaca]

I am not sure I understand.  How would this make it so I type vagrant ssh, it does to a designated primary box?  

I have to specify at initialization the primary symbol to true, so I am asking if there's a way to set it to primary after declaration, or another way to do it dynamically, conditionally set the symbol to true.

[Joaquin Menchaca]

I found a solution.  I will essentially have a Ruby hash (created from json, yaml, xml, or other format), that I feed into Vagrant.  I toggle a default value that I set for primary.

Vagrant.configure("2") do |config|¬

··settings['hosts'].each do |hostname, ipaddr|¬

····default = settings['defaults'][hostname] || false¬

····config.vm.define hostname, primary: default do |node|¬

······node.vm.box = "ubuntu/trusty64"¬

······node.vm.hostname = "#{hostname}"¬

······node.vm.network "private_network", ip: ipaddr¬

······node.vm.provider("virtualbox") { |vbox| vbox.name = "#{hostname}_#{time}" }¬

······if settings['ports'][hostname]¬

········settings['ports'][hostname].each do |forward|¬

··········node.vm.network "forwarded_port", guest: forward['guest'], host: forward['host']¬

········end¬

······end¬

······# Provision¬

······node.vm.provision "shell", path: "scripts/#{hostname}.sh"¬

····end¬

··end¬

end

[Joaquin Menchaca]

Also, I did this as well

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

  ...

  nodes.each do |nodename, ipaddr|

    default = if nodename == "mysystem" then true else false end

    config.vm.define nodename, primary: default do |node|

    ...

    end

end