Heat Template

heat_template_version: <version date in yyyy-mm-dd format>

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description:

  #a description of the template

 #add at least one meaningful line that describes what the user can do with the template

​

parameter_groups:

  #a declaration of input parameter groups and order

  #specify how the input parameters should be grouped and the order in which the parameters must be provided.

  #section is optional and can be omitted when it is not required.

​

parameters:

  #declaration of input parameters

  #input parameters that have to be provided when instantiating the template

  #the section is optional and can be omitted when no input is required

  #use of parameterized values instead of hard-coded values makes the template reusable.

  #default values for input parameters can be provided

​

resources:

  #declaration of template resources

 #the resources section is required and must contain at least one resource definition.

​

outputs:

  #declaration of output parameters

  #output parameters available to users once the template has been instantiated.

  #the section is optional and can be omitted when no output values are required.

  #use the section to provide output to users.

​

conditions:

  #declaration of conditions

  #include statements that can be used to restrict when a resource is created or when a property is defined

heat_template_version: 2015-10-15

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description: >

  The Apache HTTP Server Project is a collaborative software development effort

  aimed at creating a robust, commercial-grade, featureful, and freely-available

  source code implementation of an HTTP (Web) server.

​

parameters:

  image:

    type: string

    description: A Linux image with the apt-get or yum commands available

    constraints:

      - custom_constraint: glance.image

  key_name:

    type: string

    description: SSH public key used by the server

    constraints:

      - custom_constraint: nova.keypair

  flavor:

    type: string

    description: flavor used by the server

    constraints:

      - custom_constraint: nova.flavor

  network:

    type: string

    description: Network used by the server

    constraints:

      - custom_constraint: nova.network

resources:

  apache_http_server:

    type: OS::Nova::Server

    properties:

      flavor: { get_param: flavor }

      image: { get_param: image }

      key_name: { get_param: key_name }

      networks:

        - network: { get_param: network }

      config_drive: true

      user_data_format: RAW

      user_data: |

        #!/bin/bash

​

        echo "Starting cloud-init Apache installation"

        apt-get update

        apt-get -y install apache2

​

outputs:

  name:

    description: Name of the apache http server instance

    value: { get_attr: [apache_http_server, name] }

  first_address:

    description: First IP address of the instance

    value: { get_attr: [apache_http_server, first_address] }