Class: Kontena::Machine::DigitalOcean::MasterProvisioner

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(token) ⇒ MasterProvisioner

Returns a new instance of MasterProvisioner.

Parameters:

  • token (String) —

    Digital Ocean token



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

def initialize(token)
  @client = DropletKit::Client.new(access_token: token)
end

Instance Attribute Details

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 13

def client
  @client
end

#http_client ⇒ Object (readonly)

Returns the value of attribute http_client.



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 13

def http_client
  @http_client
end

Instance Method Details

#erb(template, vars) ⇒ Object 



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 97

def erb(template, vars)
  ERB.new(template, nil, '%<>-').result(OpenStruct.new(vars).instance_eval { binding })
end

#generate_name ⇒ Object 



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 83

def generate_name
  "kontena-master-#{super}-#{rand(1..9)}"
end

#master_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 91

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

#run!(opts) ⇒ Object 



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

def run!(opts)
  abort('Invalid ssh key') unless File.exists?(File.expand_path(opts[:ssh_key]))

  ssh_key = ssh_key(File.read(File.expand_path(opts[:ssh_key])).strip)
  abort('Ssh key does not exist in Digital Ocean') unless ssh_key

  if opts[:ssl_cert]
    abort('Invalid ssl cert') unless File.exists?(File.expand_path(opts[:ssl_cert]))
    ssl_cert = File.read(File.expand_path(opts[:ssl_cert]))
  else
     "Generating self-signed SSL certificate" do
      ssl_cert = generate_self_signed_cert
    end
  end

  name = generate_name
  userdata_vars = opts.merge(
      ssl_cert: ssl_cert,
      server_name: name.sub('kontena-master-', '')
  )

  droplet = DropletKit::Droplet.new(
      name: name,
      region: opts[:region],
      image: 'coreos-stable',
      size: opts[:size],
      private_networking: true,
      user_data: user_data(userdata_vars),
      ssh_keys: [ssh_key.id]
  )

   "Creating DigitalOcean droplet #{droplet.name.colorize(:cyan)} " do
    droplet = client.droplets.create(droplet)
    until droplet.status == 'active'
      droplet = client.droplets.find(id: droplet.id)
      sleep 1
    end
  end

  master_url = "https://#{droplet.public_ip}"
  Excon.defaults[:ssl_verify_peer] = false
  @http_client = Excon.new("#{master_url}", :connect_timeout => 10)

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

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

  {
    name: name.sub('kontena-master-', ''),
    public_ip: droplet.public_ip,
    code: opts[:initial_admin_code]
  }
end

#ssh_key(public_key) ⇒ Object 



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 87

def ssh_key(public_key)
  client.ssh_keys.all.find{|key| key.public_key == public_key}
end

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/digital_ocean/master_provisioner.rb', line 78

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