Class: Kontena::Machine::Upcloud::NodeProvisioner

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(api_client, upcloud_username, upcloud_password) ⇒ NodeProvisioner

Returns a new instance of NodeProvisioner.

Parameters:

  • api_client (Kontena::Client) —

    Kontena api client

  • upcloud_username (String) —

    Upcloud username

  • upcloud_password (String) —

    Upcloud password



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

def initialize(api_client, upcloud_username, upcloud_password)
  @api_client = api_client
  @uc_client = Kontena::Machine::Upcloud::Client.new(upcloud_username, upcloud_password)
end

Instance Attribute Details

#api_client ⇒ Object (readonly)

Returns the value of attribute api_client.



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 12

def api_client
  @api_client
end

#uc_client ⇒ Object (readonly)

Returns the value of attribute uc_client.



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 12

def uc_client
  @uc_client
end

Instance Method Details

#erb(template, vars) ⇒ Object 



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 108

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

#generate_name ⇒ Object 



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 100

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

#node_exists_in_grid?(grid, hostname) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 104

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

#run!(opts) ⇒ Object 



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

def run!(opts)
  abort('Invalid ssh key') unless opts[:ssh_key].to_s.start_with?('ssh-')

  count = opts[:count].to_i
  userdata_vars = {
    version: opts[:version],
    master_uri: opts[:master_uri],
    grid_token: opts[:grid_token],
  }

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

  count.times do |i|
    if opts[:name]
      hostname = count == 1 ? opts[:name] : "#{opts[:name]}-#{i + 1}"
    else
      hostname = generate_name
    end
    device_data = {
      server: {
        zone: opts[:zone],
        title: "#{opts[:grid]}/#{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: [opts[:ssh_key]]
          }
        }
      }
    }.to_json

     "Creating UpCloud node #{hostname.colorize(:cyan)} " do
      response = uc_client.post('server', 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 = uc_client.get("server/#{device[:uuid]}").fetch(:server, {}) rescue nil
        sleep 5
      end
    end

    node = nil
     "Waiting for node #{hostname.colorize(:cyan)} join to grid #{opts[:grid].colorize(:cyan)} " do
      sleep 2 until node = node_exists_in_grid?(opts[:grid], hostname)
    end
    set_labels(node, ["region=#{opts[:zone]}", "provider=upcloud"])
  end
end

#set_labels(node, labels) ⇒ Object

Parameters:

  • node (Hash)
  • labels (Array<String>) 


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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 114

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

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 95

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