tosca_definitions_version: tosca_simple_yaml_1_0

description: >
  Template for deploying servers based on policies.

imports:
  - custom_definitions.yaml

topology_template:
  node_templates:
    my_server_1:
      type: tosca.nodes.Compute
      capabilities:
        # Host container properties
        host:
         properties:
           num_cpus: 2
           disk_size: 10 GB
           mem_size: 512 MB
        # Guest Operating System properties
        os:
          properties:
            # host Operating System image properties
            architecture: x86_64
            type: Linux
            distribution: RHEL
            version: 6.5

    my_server_2:
      type: tosca.nodes.Compute
      capabilities:
        host:
          properties:
            disk_size: 10 GB
            num_cpus: 2
            mem_size: 4096 MB
        os:
          properties:
            architecture: x86_64
            type: Linux
            distribution: Ubuntu
            version: 14.04

  groups:
    webserver_group:
      members: [ my_server_1, my_server_2 ]
      type: tosca.groups.Root
      metadata: { user1: 1008, user2: 1002 }


  policies:
    - my_compute_placement_policy:
        type: tosca.policies.Placement
        description: Apply placement policy to servers
        metadata: { user1: 1001, user2: 1002 }
        targets: [ my_server_1, my_server_2 ]
        triggers:
           resize_compute:
             description: trigger
             event_type: tosca.events.resource.utilization
             schedule:
               start_time: "2015-05-07T07:00:00Z"
               end_time: "2015-06-07T07:00:00Z"
             target_filter:
               node: master-container
               requirement: host
               capability: Container
             condition:
               constraint: utilization greater_than 50%
               period: 60
               evaluations: 1
               method: average
             action:
               resize: # Operation name
                inputs:
                 strategy: LEAST_USED
                 implementation: Senlin.webhook()
    - my_groups_placement:
        type: mycompany.mytypes.myScalingPolicy
        targets: [ webserver_group ]
        description: my company scaling policy
        metadata:
          user1: 1001
          user2: 1003