Class: ChefWorkflow::VM::VagrantProvisioner

Inherits:
Object
  • Object
show all
Defined in:
lib/chef-workflow/support/vm/vagrant.rb

Overview

Provisions a server group with vagrant and virtualbox.

All vagrant machines share the same IP address on eth0, which is typically 10.0.2.15. To compensate for that, a host-only network address will be auto-generated for each server in the group and lives on eth1. It is strongly recommended that you deal with this problem in your chef cookbooks, as node will typically be wrong and we cannot compensate for it.

Groups provisioned in this manner are done so with Vagrant::Prison.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, number_of_servers) ⇒ VagrantProvisioner

Constructor. Expects a server group name and a number of servers to provision.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 31

def initialize(name, number_of_servers)
  @db                 = ChefWorkflow::DatabaseSupport::Object.new("vm_prisons")
  @name               = name
  @number_of_servers  = number_of_servers
  @prison             = @db[name]
end

Instance Attribute Details

#name ⇒ Object

name of server group



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 26

def name
  @name
end

#number_of_servers ⇒ Object (readonly)

number of servers to provision



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 24

def number_of_servers
  @number_of_servers
end

#prison ⇒ Object (readonly)

Vagrant::Prison object



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 22

def prison
  @prison
end

Instance Method Details

#bootstrap_vagrant_ipsupport ⇒ Object

helper to bootstrap vagrant requirements.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 55

def bootstrap_vagrant_ipsupport
  ChefWorkflow::IPSupport.seed_vagrant_ips
end

#ips ⇒ Object

Get the ips associated with this server group.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 41

def ips
  ChefWorkflow::IPSupport.get_role_ips(name)
end

#report ⇒ Object 



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 111

def report
  ["#{@number_of_servers} servers; prison dir: #{@prison.dir}"]
end

#shutdown ⇒ Object

Deprovisions the servers for this group, and cleans up the prison and allocated IP addresses.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 99

def shutdown
  @prison ||= @db[name]

  if prison
    prison.configure_environment(:ui_class => ui_class)
    prison.cleanup
  end
  ChefWorkflow::IPSupport.delete_role(name)
  @db.delete(name)
  return true
end

#startup(*args) ⇒ Object

Provision a group of servers. If successful, returns an array of the ips allocated for the group. Ignores incoming arguments.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 63

def startup(*args)
  bootstrap_vagrant_ipsupport

  ChefWorkflow::IPSupport.delete_role(name)

  @prison = Vagrant::Prison.new(Dir.mktmpdir, false)
  prison.name = name
  prison.configure do |config|
    config.vm.box_url = ChefWorkflow::VagrantSupport.box_url
    config.vm.box = ChefWorkflow::VagrantSupport.box

    if customizations = ChefWorkflow::VagrantSupport.customizations
      customizations.each { |c| config.vm.customize c }
    end

    number_of_servers.times do |x|
      ip = ChefWorkflow::IPSupport.unused_ip
      ChefWorkflow::IPSupport.assign_role_ip(name, ip)
      config.vm.define "#{name}-#{x}" do |this_config|
        this_config.vm.network :hostonly, ip
      end
    end
  end

  prison.construct(:ui_class => ui_class)
  @db[name] = prison # eager save in case start has issues

  return prison.start ? ips : false
ensure
  @db[name] = prison
end

#ui_class ⇒ Object

Get the appropriate Vagrant UI class, depending on debugging settings.



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# File 'lib/chef-workflow/support/vm/vagrant.rb', line 48

def ui_class
  $CHEF_WORKFLOW_DEBUG >= 2 ? Vagrant::UI::Basic : Vagrant::UI::Silent
end