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

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from UpcloudCommon

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

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 18

def initialize(api_client, upcloud_username, upcloud_password)
  @api_client = api_client
  @username = upcloud_username
  @password = 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 13

def api_client
  @api_client
end

#password ⇒ Object (readonly)

Returns the value of attribute password.



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 13

def password
  @password
end

#username ⇒ Object (readonly)

Returns the value of attribute username.



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 13

def username
  @username
end

Instance Method Details

#erb(template, vars) ⇒ Object 



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 110

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 102

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 106

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 24

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-')

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

  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

  device_data = {
    server: {
      zone: opts[:zone],
      title: "Kontena Grid #{opts[:grid]} Node #{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

   "Creating Upcloud node #{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

  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

#set_labels(node, labels) ⇒ Object 



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

def set_labels(node, labels)
  data = {labels: labels}
  api_client.put("nodes/#{node['id']}", data, {}, {'Kontena-Grid-Token' => node['grid']['token']})
end

#user_data(vars) ⇒ Object 



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# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 97

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