Class: Kontena::Machine::Azure::MasterProvisioner

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#create_virtual_network, #erb, #find_coreos_image, #virtual_network_exist?

Constructor Details

#initialize(subscription_id, certificate) ⇒ MasterProvisioner 



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

def initialize(subscription_id, certificate)

  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

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/kontena/machine/azure/master_provisioner.rb', line 16

def client
  @client
end

#http_client ⇒ Object (readonly)

Returns the value of attribute http_client.



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# File 'lib/kontena/machine/azure/master_provisioner.rb', line 16

def http_client
  @http_client
end

Instance Method Details

#generate_cloud_service_name ⇒ Object 



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# File 'lib/kontena/machine/azure/master_provisioner.rb', line 132

def generate_cloud_service_name
  "kontena-master-#{generate_name}-#{rand(1..99)}"
end

#master_running? ⇒ Boolean 



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# File 'lib/kontena/machine/azure/master_provisioner.rb', line 126

def master_running?
  http_client.get(path: '/').status == 200
rescue
  false
end

#run!(opts) ⇒ Object 



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

def run!(opts)
  abort('Invalid ssh key') unless File.exists?(File.expand_path(opts[:ssh_key]))
  ssl_cert = nil
  if opts[:ssl_cert]
    abort('Invalid ssl cert (file not found)') unless File.exists?(File.expand_path(opts[:ssl_cert]))
    ssl_cert = File.read(File.expand_path(opts[:ssl_cert]))
  else
     "Generating a self-signed SSL certificate" do
      ssl_cert = generate_self_signed_cert
    end
  end

  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?

  cloud_service_name = generate_cloud_service_name
  vm_name = cloud_service_name
  master_url = ''
  public_ip = nil
  if opts[:virtual_network].nil?
    location = opts[:location].downcase.gsub(' ', '-')
    default_network_name = "kontena-#{location}"
     "Creating a virtual network #{default_network_name.colorize(:cyan)}" 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 an Azure Virtual Machine #{vm_name.colorize(:cyan)} to #{opts[:location].colorize(:cyan)}" do

    userdata_vars = opts.merge(
        ssl_cert: ssl_cert,
        server_name: opts[:name] || cloud_service_name.sub('kontena-master-', '')
    )

    params = {
        vm_name: vm_name,
        vm_user: 'core',
        location: opts[:location],
        image: coreos_image,
        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: '443',
        private_key_file: File.expand_path(opts[:ssh_key]),
        ssh_port: 22,
        vm_size: opts[:size],
    }

    virtual_machine =  client.vm_management.create_virtual_machine(params,options)
    public_ip = virtual_machine.ipaddress
    master_url = "https://#{virtual_machine.ipaddress}"
  end
  Excon.defaults[:ssl_verify_peer] = false
  @http_client = Excon.new("#{master_url}", :connect_timeout => 10)

   "Waiting for #{vm_name.colorize(:cyan)} to start (#{master_url})" do
    sleep 0.5 until master_running?
  end

  master_version = nil
   "Retrieving Kontena Master version" do
    master_version = JSON.parse(@http_client.get(path: '/').body["version"]) rescue nil
  end

   "Kontena Master #{master_version} is now running at #{master_url}".colorize(:green)

  data = {
    name: opts[:name] || cloud_service_name.sub('kontena-master-', ''),
    public_ip: public_ip,
    provider: 'azure',
    version: master_version,
    code: opts[:initial_admin_code]
  }
  if respond_to?(:certificate_public_key) && !opts[:ssl_cert]
    data[:ssl_certificate] = certificate_public_key(ssl_cert)
  end

  data
end

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/azure/master_provisioner.rb', line 121

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