Sample Heat template that creates stack tiers, injects a simple BASH script through cloud-init that installs Chef-client and joins a Chef Server.

• A Heat provider that supports the following:
  • OS::Heat::ResourceGroup
  • OS::Nova::KeyPair
  • Rackspace::Cloud::LoadBalancer
• An OpenStack username, password, and tenant id.
• python-heatclient >= v0.2.8:

pip install python-heatclient

We recommend installing the client within a Python virtual environment.

Parameters can be replaced with your own values when standing up a stack. Use the -P flag to specify a custom parameter.

• t6_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t2_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t9_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t8_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t4_count: Number of Tier 4 nodes to create. (Default: 1)
• t4_name: Base name for Tier 4 (Default: tier4)
• t9_name: Base name for Tier 9 (Default: tier9)
• t5_count: Number of Tier 5 nodes to create. (Default: 1)
• t8_count: Number of Tier 8 nodes to create. (Default: 1)
• t3_count: Number of Tier 3 nodes to create. (Default: 1)
• chef_env: Required: Chef Environment (Default: _default)
• t7_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t4_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t2_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t5_name: Base name for Tier 5 (Default: tier5)
• t3_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t7_name: Base name for Tier 7 (Default: tier7)
• t3_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t2_name: Base name for Tier 2 (Default: tier2)
• t5_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t5_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t6_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• chef_version: Optional: Version of Chef Client to use (Default: 11.16.0)
• t2_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t8_name: Base name for Tier 8 (Default: tier8)
• t8_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t4_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t9_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t6_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• chef_server_url: Optional: Chef Server URL. Defaults to None, but the BASH script will infer the Managed Chef URL from the organization (Default: '')
• t9_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t7_role: Optional: Chef Role. Will default to "_default" (Default: _default)
• t2_count: Number of Tier 2 nodes to create. (Default: 1)
• t7_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t6_name: Base name for Tier 6 (Default: tier6)
• t3_name: Base name for Tier 3 (Default: tier3)
• t7_count: Number of Tier 7 nodes to create. (Default: 1)
• t6_count: Number of Tier 6 nodes to create. (Default: 1)
• validation_key: Required: chef-client will attempt to use the private key assigned to the chef-validator, located in /etc/chef/validation.pem. If, for any reason, the chef-validator is unable to make an authenticated request to the Chef server, the initial chef-client run will fail. Must be base64 encoded. (Default: None)
• t3_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• t8_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t9_count: Number of Tier 9 nodes to create. (Default: 1)
• organization: Required: Chef organization (Default: '')
• t4_flavor: Optional: Rackspace Cloud Server flavor to use. The size is based on the amount of RAM for the provisioned server. (Default: 1 GB Performance)
• t5_image: Optional: Server image used for the server created as a part of this deployment. (Default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM))
• child_template: (Default: https://raw.githubusercontent.com/rackops/heat-stack/master/stack_single.yaml)
• t1_load_balancer: Load Balancer that points to nodes in Tier 2. (Default: tier1LB)

Once a stack comes online, use heat output-list to see all available outputs. Use heat output-show <OUTPUT NAME> to get the value of a specific output.

• t5_public_ip: Tier 5 Public IP
• private_key: SSH Private Key
• t8_public_ip: Tier 8 Public IP
• t1_loadbalancer: Tier 1 Load Balancer IP
• t9_private_ip: Tier 9 Private IP
• t5_private_ip: Tier 5 Private IP
• t2_private_ip: Tier 2 Private IP
• t6_private_ip: Tier 6 Private IP
• t7_public_ip: Tier 7 Public IP
• t7_private_ip: Tier 7 Private IP
• t4_private_ip: Tier 4 Private IP
• t8_private_ip: Tier 8 Private IP
• t9_public_ip: Tier 9 Public IP
• t3_public_ip: Tier 3 Public IP
• t3_private_ip: Tier 3 Private IP
• t2_public_ip: Tier 2 Public IP
• t4_public_ip: Tier 4 Public IP
• t6_public_ip: Tier 6 Public IP

For multi-line values, the response will come in an escaped form. To get rid of the escapes, use echo -e '<STRING>' > file.txt. For vim users, a substitution can be done within a file using %s/\\n/\r/g.