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heat_template_version: 2014-10-16

description: >
  Example extra config for cluster config
  this example collects the hostname and MAC addresses for each node in
  the deployment, then distributes that info to all Controller nodes.

# Parameters passed from the parent template - note if you maintain
# out-of-tree templates they may require additional parameters if the
# in-tree templates add a new role.
parameters:
  servers:
    type: json
# Note extra parameters can be defined, then passed data via the
# environment parameter_defaults, without modifying the parent template

resources:

  CollectMacConfig:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      config: |
        #!/bin/sh
        MACS=$(ifconfig  | grep ether | awk '{print $2}' | tr "\n" " ")
        HOSTNAME=$(hostname -s)
        echo "$HOSTNAME $MACS"

  # FIXME(shardy): Long term it'd be better if Heat SoftwareDeployments accepted
  # list instead of a map, then we could join the lists of servers into one
  # deployment instead of requiring one deployment per-role.
{% for role in roles %}
  CollectMacDeployments{{role.name}}:
    type: OS::Heat::SoftwareDeployments
    properties:
      name: CollectMacDeploymentsController
      servers:  {get_param: [servers, {{role.name}}]}
      config: {get_resource: CollectMacConfig}
      actions: ['CREATE'] # Only do this on CREATE
{% endfor %}

  # Now we distribute all-the-macs to all Controller nodes
  DistributeMacConfig:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      inputs:
      - name: controller_mappings
      - name: compute_mappings
      - name: blockstorage_mappings
      - name: objectstorage_mappings
      - name: cephstorage_mappings
      config: |
        #!/bin/sh
        echo $controller_mappings > /root/controller_mappings
        echo $compute_mappings > /root/compute_mappings
        echo $blockstorage_mappings > /root/blockstorage_mappings
        echo $objectstorage_mappings > /root/objectstorage_mappings
        echo $cephstorage_mappings > /root/cephstorage_mappings
        echo "mappings = $(cat /root/*_mappings)"

  DistributeMacDeploymentsController:
    type: OS::Heat::SoftwareDeployments
    properties:
      name: DistributeMacDeploymentsController
      servers:  {get_param: [servers, Controller]}
      config: {get_resource: DistributeMacConfig}
      input_values:
        # FIXME(shardy): It'd be more convenient if we could join these
        # items together but because the returned format is a map (not a list)
        # we can't use list_join or str_replace.  Possible Heat TODO.
        controller_mappings: {get_attr: [CollectMacDeploymentsController, deploy_stdouts]}
        compute_mappings: {get_attr: [CollectMacDeploymentsCompute, deploy_stdouts]}
        blockstorage_mappings: {get_attr: [CollectMacDeploymentsBlockStorage, deploy_stdouts]}
        objectstorage_mappings: {get_attr: [CollectMacDeploymentsObjectStorage, deploy_stdouts]}
        cephstorage_mappings: {get_attr: [CollectMacDeploymentsCephStorage, deploy_stdouts]}
      actions: ['CREATE'] # Only do this on CREATE