head.yaml

heat_template_version: 2014-10-16


description: >
  A host used for HPC head node other optional services.


parameters:

  key_name:
    description: >
      A pre-submitted SSH key to access the VM hosts
    type: string
    constraints:
    - custom_constraint: nova.keypair

  image:
    description: >
      Select a base image to use for the VMs
    type: string
    constraints:
    - custom_constraint: glance.image

  flavor:
    description: >
      Define the hardware characteristics for the VMs: CPU, Memory, base disk
    type: string
    constraints:
    - custom_constraint: nova.flavor

  hostname:
    description: >
      The Infrastructure hostname portion of the FQDN
    type: string

  timeout:
    description: Time to wait until the setup is ready.
    type: number
    default: 600

  # Software Subscription information
  rhn_username:
    description: >
      A valid user with entitlements to RHEL and OpenShift software repos
    type: string

  rhn_password:
    description: >
      The password for the RHN user
    type: string
    hidden: true

  rhn_pool:
    description: >
      A subscription pool containing the RHEL and OpenShift software repos
      OPTIONAL
    type: string
    hidden: true

  ssh_user:
    description: >
      The user for SSH access to the VM hosts
    type: string

  # Network topology and location

  port:
    description: Neutron port (with a floating IP address) to assign to the DNS Nova Server
    type: string


resources:

  # A VM to provide host based orchestration and other sub-services
  host:
    type: OS::Nova::Server
    properties:
      name: {get_param: hostname}
      admin_user: {get_param: ssh_user}
      image: {get_param: image}
      flavor: {get_param: flavor}
      key_name: {get_param: key_name}
      networks:
      - port: {get_param: port}
      user_data_format: SOFTWARE_CONFIG
      user_data: {get_resource: init}

  # Install, configure and enable the Heat configuration agent
  config_agent:
    type: collect-config-setup/install_config_agent_centos_yum.yaml


  # Collect the results from a set of resources
  init:
    type: OS::Heat::MultipartMime
    properties:
      parts:
      - config: {get_resource: rhn_register}
      - config: {get_resource: host_update}
      - config: {get_attr: [config_agent, config]}
        type: multipart
      - config: {get_resource: node_boot}

  node_boot:
    type: OS::Heat::SoftwareConfig
    properties:
      config:
        str_replace:
          params:
            $WC_NOTIFY: { get_attr: ['wait_handle', 'curl_cli'] }
          template: {get_file: fragments/head-boot.sh}

  # Register the host with RHN for access to software packages
  rhn_register:
    type: OS::Heat::SoftwareConfig
    properties:
      config:
        str_replace:
          params:
            $RHN_USERNAME: {get_param: rhn_username}
            $RHN_PASSWORD: {get_param: rhn_password}
            $POOL_ID: {get_param: rhn_pool}
          template: {get_file: fragments/rhn-register.sh}

  # Make sure the host software is current
  host_update:
    type: OS::Heat::SoftwareConfig
    properties:
      config:
        get_file: fragments/host-update.sh



  # Wait until the cloud-init process ends and reports or times out
  wait_condition:
    type: OS::Heat::WaitCondition
    properties:
      handle: {get_resource: wait_handle}
      timeout: {get_param: timeout}

  # This is passed to infra_init cloud-init script as a curl CLI command
  # When the cloud-init process ends it queries the URL with
  # a message which ends the wait and returns the value
  wait_handle:
    type: OS::Heat::WaitConditionHandle