Class: Kontena::Machine::Azure::NodeProvisioner

Inherits:
Object
  • Object
show all
Includes:
Cli::ShellSpinner, Common, RandomName
Defined in:
lib/kontena/machine/azure/node_provisioner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#create_virtual_network, #find_coreos_image, #virtual_network_exist?

Constructor Details

#initialize(api_client, subscription_id, certificate) ⇒ NodeProvisioner 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 20

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

  @client = ::Azure
  client.management_certificate = File.expand_path(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/kontena/machine/azure/node_provisioner.rb', line 15

def api_client
  @api_client
end

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 15

def client
  @client
end

Instance Method Details

#cloud_service(name) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 119

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

#cloud_service_exist?(name) ⇒ Boolean 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 115

def cloud_service_exist?(name)
  cloud_service(name)
end

#erb(template, vars) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 111

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

#generate_cloud_service_name(name, grid) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 103

def generate_cloud_service_name(name, grid)
  "kontena-#{grid}-#{name}"
end

#generate_name ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 99

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

#run!(opts) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 30

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

  coreos_image = nil
   "Finding latest #{'CoreOS stable'.colorize(:cyan)} image" do
    coreos_image = find_coreos_image
  end
  abort('Cannot find CoreOS image') if coreos_image.nil?

  if opts[:virtual_network].nil?
    location = opts[:location].downcase.gsub(' ', '-')
    default_network_name = "kontena-#{location}"
     "Creating virtual network #{default_network_name}" do
      create_virtual_network(default_network_name, opts[:location]) unless virtual_network_exist?(default_network_name)
    end
    opts[:virtual_network] = default_network_name
    opts[:subnet] = 'subnet-1'
  end

   "Creating Azure Virtual Machine #{vm_name.colorize(:cyan)}" do
    userdata_vars = {
      version: opts[:version],
      master_uri: opts[:master_uri],
      grid_token: opts[:grid_token],
    }

    params = {
      vm_name: vm_name,
      vm_user: 'core',
      location: opts[:location],
      image: coreos_image,
      custom_data: Base64.encode64(user_data(userdata_vars)),
      ssh_key: File.expand_path(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: '80,443,6783',
      udp_endpoints: '1194,6783,6784',
      private_key_file: opts[:ssh_key],
      ssh_port: 22,
      vm_size: opts[:size],
    }

    client.vm_management.create_virtual_machine(params,options)
  end
   "Waiting for node #{vm_name.colorize(:cyan)} join to grid #{opts[:grid].colorize(:cyan)} " do
    sleep 0.5 until node = vm_exists_in_grid?(opts[:grid], vm_name)
  end
  if node
    labels = [
      "region=#{cloud_service(cloud_service_name).location}",
      "az=#{cloud_service(cloud_service_name).location}",
      "provider=azure"
    ]
    set_labels(node, labels)
  end
end

#set_labels(node, labels) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 123

def set_labels(node, labels)
  data = {}
  data[:labels] = labels
  api_client.put("nodes/#{node['grid']['id']}/#{node['id']}", data)
end

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 94

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

#vm_exists_in_grid?(grid, name) ⇒ Boolean 



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# File 'lib/kontena/machine/azure/node_provisioner.rb', line 107

def vm_exists_in_grid?(grid, name)
  api_client.get("grids/#{grid}/nodes")['nodes'].find{|n| n['name'] == name}
end