plugin.yaml

plugins:

  healer: &utilities_plugin
    executor: central_deployment_agent
    package_name: cloudify-healer-plugin
    source: https://github.com/dfilppi/cloudify-healer-plugin/archive/master.zip
    package_version: '0.1'


node_types:

  cloudify.nodes.Healer:
    derived_from: cloudify.nodes.Root
    properties:
      cfy_creds:
        description: |
          Cloudify credentials needed to call heal workflow.  
          Comma separated list of the form: username, password, tenant
        type: string
        default: "admin,admin,default_tenant"
  
      type:      
        description: |
          Enum: "ping", "port", "http", or "custom"
        type: string

      debug:
        description: |
          Boolean.  If true, debug logging will be turned on in healer log files
        type: boolean
        default: false

      config:
        description: |
          Healer configuration, specific to a specific healer:

          "ping" - Pings a compute node (assumes node has healer_connected_to
          relationship with a compute node with 'ip' runtime property, and
          ICMP traffic allowed between manager and node):
          {
             count: <number of failed pings before failure>
             frequency: <number of seconds between pings>
          }

          "port" - Tests a TCP connection on specified port (assumes node
          has healer_connected_to relationship with a compute node with
          'ip' runtime property, and traffic allowed between manager and
          port on that node):
          {
             port: <the port to access>
             count: <number of port connection errors before failure>
             frequency: <number of seconds between connections>
          }

          "http" - Performs an HTTP(s) get on specific host and port (assumes
          node has healer_connected_to relationship with a compute node with
          'ip' runtime property, and traffic allowed between manager and 
          port on that node).  Constructed URL will have form
          http(s)://<ip>:<port>/<path>:
          {
             path: the target path 
             port: the target port
             secure: boolean, if true 'https' URL will be constructed
             count: <number of HTTP GET non-2xx responses before failure>
             frequency: <number of seconds between connections>
          }

          "custom" - Calls specified Python script periodically in a subprocess.
          Exit value of 1 implies error.
          {
             count: <number of HTTP GET non-2xx responses before failure>
             frequency: <number of seconds between connections>
             script: <path to a Python script> has access to context proxy
          }
          
        default: {}    
          
relationships:

  cloudify.relationships.healer_connected_to:
    derived_from: cloudify.relationships.connected_to
    source_interfaces:
      cloudify.interfaces.relationship_lifecycle:
        establish:
          implementation: healer.cloudify_healer.launcher.launch
        unlink:
          implementation: healer.cloudify_healer.stopper.stop