2tier.yaml

heat_template_version: 2013-05-23

# heat stack-create -f heat_demo.yaml <stack_name_here>
description: |
  A template that deploys a multi-tier topology: 2 Web, 1 DB.

parameters:

  flavor:
    label: Server Size
    type: string
    description: |
      flavor to use.
    default: m1.small
    constraints:
      - allowed_values:
        - m1.tiny
        - m1.small
        - m1.medium
        - m1.large
        description: |
          Value must be one of 'm1.tiny', 'm1.small', 'm1.medium' or 'm1.large'.

  key_name:
    type: string
    description: SSH key pair
    default: VIO-SSH
    constraints:
      - custom_constraint: nova.keypair

  image:
    label: Name of image to use for servers
    type: string
    description: |
      Server image used for all servers that are created as a part of this
      deployment
    # Use lightweight image for testing.
    default: ubuntu-from-qcow

  public_net:
    label: Public Network ID for external connectivity
    type: string
    description: >
      ID or name of public network for which floating IP addresses will be allocated
    # Need to update this network UUID for each vPod.
    default: '71a4c635-b386-45cf-b9fc-de9dcd1a1b0f'

resources:

  web_net:
    type: OS::Neutron::Net
    properties:
      name: 'web-heat'

  web_subnet:
    type: OS::Neutron::Subnet
    properties:
      network_id: { get_resource: web_net }
      cidr: 192.168.210.0/24
      dns_nameservers: [ "10.34.35.11", "10.34.45.11" ]
      enable_dhcp: true
      gateway_ip: 192.168.210.1
      allocation_pools:
        - start: 192.168.210.100
          end: 192.168.210.199

  db_net:
    type: OS::Neutron::Net
    properties:
      name: 'db-heat'

  db_subnet:
    type: OS::Neutron::Subnet
    properties:
      network_id: { get_resource: db_net }
      cidr: 192.168.211.0/24
      dns_nameservers: [ "10.34.35.11", "10.34.45.11" ]
      enable_dhcp: true
      gateway_ip: 192.168.211.1
      allocation_pools:
        - start: 192.168.211.100
          end: 192.168.211.199

  router:
    type: OS::Neutron::Router
    properties:
      admin_state_up: true
      name: heat-router

  router_gw:
    type: OS::Neutron::RouterGateway
    properties:
      network_id: { get_param: public_net}
      router_id: { get_resource: router }

  router_interface_web:
    type: OS::Neutron::RouterInterface
    properties:
      router_id: { get_resource: router }
      subnet_id: { get_resource: web_subnet }

  router_interface_db:
    type: OS::Neutron::RouterInterface
    properties:
      router_id: { get_resource: router }
      subnet_id: { get_resource: db_subnet }

  db_security_group:
    type: OS::Neutron::SecurityGroup
    properties:
      description: Allow sql traffic from web tier
      name: db-security-group
      rules:
        - remote_ip_prefix: 192.168.211.0/24
          protocol: tcp
          port_range_min: 3306
          port_range_max: 3306
        - remote_ip_prefix: 0.0.0.0/0
          protocol: tcp
          port_range_min: 22
          port_range_max: 22

  web_security_group:
    type: OS::Neutron::SecurityGroup
    properties:
      description: Allow web traffic from anywhere
      name: web-security-group
      rules:
        - remote_ip_prefix: 0.0.0.0/0
          protocol: tcp
          port_range_min: 80
          port_range_max: 80
        - remote_ip_prefix: 0.0.0.0/0
          protocol: tcp
          port_range_min: 22
          port_range_max: 22

  web01:
    type: OS::Nova::Server      
    properties:
      flavor: { get_param: flavor }
      image: { get_param: image }
      key_name: { get_param: key_name }
      name: web01
      diskConfig: AUTO
      networks:
        - port: { get_resource: web01_port }

  web01_port:
    type: OS::Neutron::Port
    properties:
      network_id: { get_resource: web_net }
      fixed_ips:
        - subnet_id: { get_resource: web_subnet }
      security_groups: [{ get_resource: web_security_group }]

  web01_floating_ip:
    type: OS::Neutron::FloatingIP
    properties:
      floating_network_id: { get_param: public_net }
      port_id: { get_resource: web01_port }

  web02:
    type: OS::Nova::Server      
    properties:
      flavor: { get_param: flavor }
      image: { get_param: image }
      key_name: { get_param: key_name }
      name: web02
      diskConfig: AUTO
      networks:
        - port: { get_resource: web02_port }

  web02_port:
    type: OS::Neutron::Port
    properties:
      network_id: { get_resource: web_net }
      fixed_ips:
        - subnet_id: { get_resource: web_subnet }
      security_groups: [{ get_resource: web_security_group }]

  web02_floating_ip:
    type: OS::Neutron::FloatingIP
    properties:
      floating_network_id: { get_param: public_net }
      port_id: { get_resource: web02_port }

  db01:
    type: OS::Nova::Server      
    properties:
      flavor: { get_param: flavor }
      image: { get_param: image }
      key_name: { get_param: key_name }
      name: db01
      diskConfig: AUTO
      networks:
        - port: { get_resource: db01_port }

  db01_port:
    type: OS::Neutron::Port
    properties:
      network_id: { get_resource: db_net }
      fixed_ips:
        - subnet_id: { get_resource: db_subnet }
      security_groups: [{ get_resource: db_security_group }]

  db01_floating_ip:
    type: OS::Neutron::FloatingIP
    properties:
      floating_network_id: { get_param: public_net }
      port_id: { get_resource: db01_port }

outputs:

  web_url:
    value:
      str_replace:
        template: "http://%server_ip%:8080"
        params:
          "%server_ip%": { get_attr: [ web01_floating_ip, floating_ip_address ] }
    description: web01 floating ip