playbooks/roles/install-configure-heat/files/heat-server.yaml

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heat_template_version: 2017-02-24

description: Common template for instances to install cluster on

parameters:
  # parameters for instances
  instance_name:
    type: string
    label: Name
    description: Instance name

  image:
    type: string
    label: Image name or ID
    description: Image to use for instances

  flavor:
    type: string
    label: Flavor
    description: Flavor to use for instances

  keypair:
    type: string
    label: Key name
    description: Keypair to use for instances

  internal_security_group:
    type: string
    label: Internal Security Group
    description: Security Group to place jumphost and cluster instances in

  private_network:
    type: string
    label: Private network name or ID
    description: Network to attach instances to

resources:
  wait_condition:
    type: OS::Heat::WaitCondition
    properties:
      handle: { get_resource: wait_handle }
      count: 1
      timeout: 1200

  wait_handle:
    type: OS::Heat::WaitConditionHandle

  root_login:
    type: OS::Heat::CloudConfig
    properties:
      cloud_config:
        disable_root: false

  boot_script:
    type: OS::Heat::SoftwareConfig
    properties:
      group: ungrouped
      config:
        str_replace:
          params:
            wc_notify: { get_attr: ['wait_handle', 'curl_cli'] }
          template: |
            #!/bin/bash -ex

            echo "Running boot script"

            # we need python for ansible
            sudo apt update
            sudo apt install -y python python-dev

            # notify completion
            wc_notify --data-binary '{"status": "SUCCESS"}'

  boot_config:
    type: OS::Heat::MultipartMime
    properties:
      parts:
      - config: {get_resource: root_login}
      - config: {get_resource: boot_script}

  port:
    type: OS::Neutron::Port
    properties:
      network: { get_param: private_network }
      replacement_policy: AUTO
      security_groups:
        - { get_param: internal_security_group }

  instance:
    type: OS::Nova::Server
    properties:
      name: { get_param: instance_name }
      image: { get_param: image }
      flavor: { get_param: flavor }
      key_name: { get_param: keypair }
      networks:
        - port: { get_resource: port }
      user_data_format: SOFTWARE_CONFIG
      user_data: { get_resource: boot_config }

outputs:
  instance_ip:
    value: {get_attr: [instance, first_address]}

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