Class: Central::Machine::DigitalOcean::MasterProvisioner

Inherits:
Object
  • Object
show all
Includes:
CertHelper, RandomName
Defined in:
lib/central/machine/digital_ocean/master_provisioner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from CertHelper

#generate_self_signed_cert

Constructor Details

#initialize(token) ⇒ MasterProvisioner

Returns a new instance of MasterProvisioner.

Parameters:

  • token (String) —

    Digital Ocean token



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# File 'lib/central/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/central/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/central/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/central/machine/digital_ocean/master_provisioner.rb', line 93

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/central/machine/digital_ocean/master_provisioner.rb', line 79

def generate_name
  "central-machine-#{super}-#{rand(1..9)}"
end

#master_running? ⇒ Boolean

Returns:

  • (Boolean) 


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

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

#run!(opts) ⇒ Object 



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

def run!(opts)
  abort('Invalid ssh key') unless File.exist?(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.exist?(File.expand_path(opts[:ssl_cert]))
    ssl_cert = File.read(File.expand_path(opts[:ssl_cert]))
  else
    ShellSpinner 'Generating self-signed SSL certificate' do
      ssl_cert = generate_self_signed_cert
    end
  end

  userdata_vars = {
    ssl_cert: ssl_cert,
    auth_server: opts[:auth_server],
    version: opts[:version],
    vault_secret: opts[:vault_secret],
    vault_iv: opts[:vault_iv],
    mongodb_uri: opts[:mongodb_uri]
  }

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

  ShellSpinner "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 5
    end
  end

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

  ShellSpinner "Waiting for #{droplet.name.colorize(:cyan)} to start" do
    sleep 5 until master_running?
  end

  puts "Central Machine is now running at #{master_url}"
  puts "Use #{"cm login --name=#{droplet.name.sub('central-machine-', '')} #{master_url}".colorize(:light_black)} to complete Central Machine setup"
end

#ssh_key(public_key) ⇒ Object 



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

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/central/machine/digital_ocean/master_provisioner.rb', line 74

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