Class: Kontena::Machine::Upcloud::MasterProvisioner

Inherits:
Object
  • Object
show all
Includes:
CertHelper, RandomName, UpcloudCommon
Defined in:
lib/kontena/machine/upcloud/master_provisioner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from UpcloudCommon

#abort_unless_api_access, #api_access?, #client, #find_plan, #find_template, #get_server, #zone_exist?

Methods included from CertHelper

#generate_self_signed_cert

Constructor Details

#initialize(upcloud_username, upcloud_password) ⇒ MasterProvisioner 



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# File 'lib/kontena/machine/upcloud/master_provisioner.rb', line 17

def initialize(upcloud_username, upcloud_password)
  @username = upcloud_username
  @password = upcloud_password
end

Instance Attribute Details

#http_client ⇒ Object (readonly)

Returns the value of attribute http_client.



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# File 'lib/kontena/machine/upcloud/master_provisioner.rb', line 14

def http_client
  @http_client
end

#password ⇒ Object (readonly)

Returns the value of attribute password.



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# File 'lib/kontena/machine/upcloud/master_provisioner.rb', line 14

def password
  @password
end

#username ⇒ Object (readonly)

Returns the value of attribute username.



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# File 'lib/kontena/machine/upcloud/master_provisioner.rb', line 14

def username
  @username
end

Instance Method Details

#erb(template, vars) ⇒ Object 



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

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/upcloud/master_provisioner.rb', line 122

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

#master_running? ⇒ Boolean 



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# File 'lib/kontena/machine/upcloud/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/upcloud/master_provisioner.rb', line 22

def run!(opts)
  if File.readable?(File.expand_path(opts[:ssh_key]))
    ssh_key = File.read(File.expand_path(opts[:ssh_key])).strip
  end

  abort('Invalid ssh key') unless ssh_key && ssh_key.start_with?('ssh-')

  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
    ShellSpinner "Generating self-signed SSL certificate" do
      ssl_cert = generate_self_signed_cert
    end
  end

  abort_unless_api_access

  abort('CoreOS template not found on Upcloud') unless coreos_template = find_template('CoreOS Stable')
  abort('Server plan not found on Upcloud') unless plan = find_plan(opts[:plan])
  abort('Zone not found on Upcloud') unless zone_exist?(opts[:zone])

  hostname = generate_name

  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]
  }

  device_data = {
    server: {
      zone: opts[:zone],
      title: "Kontena Master #{hostname}",
      hostname: hostname,
      plan: plan[:name],
      vnc: 'off',
      timezone: 'UTC',
      user_data: user_data(userdata_vars),
      firewall: 'off',
      storage_devices: {
        storage_device: [
          {
            action: 'clone',
            storage: coreos_template[:uuid],
            title: "From template #{coreos_template[:title]}",
            size: plan[:storage_size],
            tier: 'maxiops'
          }
        ]
      },
      login_user: {
        create_password: 'no',
        username: 'root',
        ssh_keys: {
          ssh_key: [ssh_key]
        }
      }
    }
  }.to_json

  ShellSpinner "Creating Upcloud master #{hostname.colorize(:cyan)} " do
    response = post('server', body: device_data)
    if response.has_key?(:error)
      abort("\nUpcloud server creation failed (#{response[:error].fetch(:error_message, '')})")
    end
    device_data = response[:server]

    until device_data && device_data.fetch(:state, nil).to_s == 'maintenance'
      device_data = get("server/#{device[:uuid]}").fetch(:server, {}) rescue nil
      sleep 5
    end
  end

  device_public_ip = device_data[:ip_addresses][:ip_address].find do |ip|
    ip[:access].eql?('public') && ip[:family].eql?('IPv4')
  end

  abort('Server public ip not found, destroy manually.') unless device_public_ip

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

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

  puts "Kontena Master is now running at #{master_url}"
  puts "Use #{"kontena login --name=#{hostname.sub('kontena-master-', '')} #{master_url}".colorize(:light_black)} to complete Kontena Master setup"
end

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/upcloud/master_provisioner.rb', line 117

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