heat_template_version: 2013-05-23

description: |
  Multiple Linux servers running [MongoDB](http://www.mongodb.org/) version
  2.6 configured as a replica set.

parameter_groups:

- label: Server Settings
  parameters:
  - image
  - flavor
  - peer_server_count

- label: rax-dev-params
  # These are parameters that will not be displayed in the portal. The purpose
  # of these parameters are for users who are developing or testing newer or
  # different setups. If any of these parameters are changed, there is a good
  # chance this stack will fail to properly deploy.
  parameters:
  - kitchen
  - chef_version
  - child_template


parameters:
  server_hostname:
    label: Server Hostnames
    description: Defines how the server will be named.
    type: string
    default: 'mongodb'

  image:
    label: Operating System
    description: |
      Server image used for all servers that are created as a part of this
      deployment
    type: string
    default: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM)
    constraints:
    - allowed_values:
      - Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM)
      description: Must be a supported operating system.

  flavor:
    label: Server Size
    description: |
      Rackspace Cloud Server flavor to use. The size is based on the amount of
      RAM for the provisioned server.
    type: string
    default: 4 GB General Purpose v1
    constraints:
    - allowed_values:
      - 1 GB General Purpose v1
      - 2 GB General Purpose v1
      - 4 GB General Purpose v1
      - 8 GB General Purpose v1
      - 15 GB I/O v1
      - 30 GB I/O v1
      - 1GB Standard Instance
      - 2GB Standard Instance
      - 4GB Standard Instance
      - 8GB Standard Instance
      - 15GB Standard Instance
      - 30GB Standard Instance
      description: |
        Must be a valid Rackspace Cloud Server flavor for the region you have
        selected to deploy into.

  child_template:
    label: Child Template
    description: |
      Location of the child template to use for the MongoDB peers
    type: string
    default: https://raw.githubusercontent.com/rackspace-orchestration-templates/mongodb-replset/master/mongodb-replset-peers.yaml

  peer_server_count:
    label: number of nodes in the cluster
    description: The number of replica set members to build--preferably an odd number.
    type: number
    default: 3
    constraints:
      - range:
          min: 1
          max: 12

  kitchen:
    label: Kitchen URL
    description: URL for a git repo containing required cookbooks
    type: string
    default: https://github.com/rackspace-orchestration-templates/mongodb-replset

  chef_version:
    label: Chef Version
    description: Version of chef client to use
    type: string
    default: 12.3.0

resources:

  ssh_key:
    type: "OS::Nova::KeyPair"
    properties:
      name: { get_param: "OS::stack_id" }
      save_private_key: true

  mongodb_peer_servers:
    type: "OS::Heat::ResourceGroup"
    properties:
      count: { get_param: peer_server_count }
      resource_def:
        type: { get_param: child_template }
        properties:
          server_hostname:
            str_replace:
              template: '%name%-0%index%'
              params:
                '%name%': { get_param: server_hostname }
          image: { get_param: image }
          flavor: { get_param: flavor }
          ssh_key: { get_resource: ssh_key }
          ssh_private_key: { get_attr: [ssh_key, private_key] }
          kitchen: { get_param: kitchen }
          chef_version: { get_param: chef_version }

  server_setup:
    type: "OS::Heat::ChefSolo"
    depends_on:
    - mongodb_peer_servers
    properties:
      username: root
      private_key: { get_attr: [ssh_key, private_key] }
      host: { get_attr: [mongodb_peer_servers, accessIPv4, 0] }
      kitchen: { get_param: kitchen }
      chef_version: { get_param: chef_version }
      node:
        mongodb:
          ruby_gems:
            mongo: '2.0.5'
            bson_ext: '1.12.3'
          bind_ip: { get_attr: [mongodb_peer_servers, privateIPv4, 0] }
          use_fqdn: false
          replicaset_members: { get_attr: [mongodb_peer_servers, privateIPv4] }
          config:
            replset: myreplset
        rax:
          firewall:
            tcp: [22,27017]
        run_list: [ "recipe[config_replset]" ]

outputs:
  private_key:
    value: { get_attr: [ssh_key, private_key] }
    description: "SSH Private Key"

  server_public_ips:
    value: { get_attr: [mongodb_peer_servers, accessIPv4] }
    description: "Server IPs"