Class: Central::Machine::Azure::NodeProvisioner

Inherits:
Object
  • Object
show all
Includes:
RandomName
Defined in:
lib/central/machine/azure/node_provisioner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(api_client, subscription_id, certificate) ⇒ NodeProvisioner

Returns a new instance of NodeProvisioner.

Parameters:

  • api_client (Central::Client) —

    Central api client

  • subscription_id (String) —

    Azure subscription id

  • certificate (String) —

    Path to Azure management certificate



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# File 'lib/central/machine/azure/node_provisioner.rb', line 18

def initialize(api_client, subscription_id, certificate)
  @api_client = api_client
  abort('Invalid management certificate') unless File.exist?(File.expand_path(certificate))

  @client = ::Azure
  client.management_certificate = certificate
  client.subscription_id        = subscription_id
  client.vm_management.initialize_external_logger(Logger.new) # We don't want all the output
end

Instance Attribute Details

#api_client ⇒ Object (readonly)

Returns the value of attribute api_client.



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# File 'lib/central/machine/azure/node_provisioner.rb', line 13

def api_client
  @api_client
end

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/central/machine/azure/node_provisioner.rb', line 13

def client
  @client
end

Instance Method Details

#cloud_service(name) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 104

def cloud_service(name)
  client.cloud_service_management.get_cloud_service(name)
end

#cloud_service_exist?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/central/machine/azure/node_provisioner.rb', line 100

def cloud_service_exist?(name)
  cloud_service(name)
end

#create_virtual_network(name, location) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 112

def create_virtual_network(name, location)
  address_space = ['10.0.0.0/20']
  options = { subnet: [{ name: 'subnet-1', ip_address: '10.0.0.0', cidr: 23 }] }
  client.network_management.set_network_configuration(name, location, address_space, options)
end

#erb(template, vars) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 96

def erb(template, vars)
  ERB.new(template).result(OpenStruct.new(vars).instance_eval { binding })
end

#generate_cloud_service_name(name, stack) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 88

def generate_cloud_service_name(name, stack)
  "central-#{stack}-#{name}"
end

#generate_name ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 84

def generate_name
  "#{super}-#{rand(1..99)}"
end

#run!(opts) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 28

def run!(opts)
  abort('Invalid ssh key') unless File.exist?(File.expand_path(opts[:ssh_key]))
  node = nil
  vm_name = opts[:name] || generate_name
  cloud_service_name = generate_cloud_service_name(vm_name, opts[:stack])

  ShellSpinner "Creating Azure Virtual Machine #{vm_name.colorize(:cyan)}" do
    if opts[:virtual_network].nil?
      location = opts[:location].downcase.tr(' ', '-')
      default_network_name = "central-#{location}"
      create_virtual_network(default_network_name, opts[:location]) unless virtual_network_exist?(default_network_name)
      opts[:virtual_network] = default_network_name
      opts[:subnet] = 'subnet-1'
    end

    userdata_vars = {
      version: opts[:version],
      master_uri: opts[:master_uri],
      stack_token: opts[:stack_token]
    }

    params = {
      vm_name: vm_name,
      vm_user: 'core',
      location: opts[:location],
      image: '2b171e93f07c4903bcad35bda10acf22__CoreOS-Stable-766.3.0',
      custom_data: Base64.encode64(user_data(userdata_vars)),
      ssh_key: opts[:ssh_key]
    }
    options = {
      cloud_service_name: cloud_service_name,
      deployment_name: vm_name,
      virtual_network_name: opts[:virtual_network],
      subnet_name: opts[:subnet],
      tcp_endpoints: '80',
      private_key_file: opts[:ssh_key],
      ssh_port: 22,
      vm_size: opts[:size]
    }

    client.vm_management.create_virtual_machine(params, options)
  end
  ShellSpinner "Waiting for node #{vm_name.colorize(:cyan)} join to stack #{opts[:stack].colorize(:cyan)} " do
    sleep 2 until node = vm_exists_in_stack?(opts[:stack], vm_name)
  end
  if node
    labels = ["region=#{cloud_service(cloud_service_name).location}"]
    set_labels(node, labels)
  end
end

#set_labels(node, labels) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 118

def set_labels(node, labels)
  data = {}
  data[:labels] = labels
  api_client.put("nodes/#{node['id']}", data, {}, 'Central-Stack-Token' => node['stack']['token'])
end

#user_data(vars) ⇒ Object 



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# File 'lib/central/machine/azure/node_provisioner.rb', line 79

def user_data(vars)
  cloudinit_template = File.join(__dir__, '/cloudinit.yml')
  erb(File.read(cloudinit_template), vars)
end

#virtual_network_exist?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/central/machine/azure/node_provisioner.rb', line 108

def virtual_network_exist?(name)
  client.network_management.list_virtual_networks.find { |n| n.name == name }
end

#vm_exists_in_stack?(stack, name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/central/machine/azure/node_provisioner.rb', line 92

def vm_exists_in_stack?(stack, name)
  api_client.get("stacks/#{stack}/nodes")['nodes'].find { |n| n['name'] == name }
end