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heat_template_version: pike
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
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