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+heat_template_version: 2015-10-15
+
+description: >
+ Configure os-net-config mappings for specific nodes
+ Your environment file needs to look like:
+ parameter_defaults:
+ NetConfigDataLookup:
+ node1:
+ nic1: "00:c8:7c:e6:f0:2e"
+ node2:
+ nic1: "00:18:7d:99:0c:b6"
+ This will result in the first nodeN entry where a mac matches a
+ local device being written as a mapping file for os-net-config in
+ /etc/os-net-config/mapping.yaml
+
+parameters:
+ # Note this requires a liberty heat or newer in the undercloud due to
+ # the 2015-10-15 (which is required to enable str_replace serializing
+ # the json parameter to json, another approch with a string parameter
+ # will be required for older heat versions)
+ NetConfigDataLookup:
+ type: json
+ default: {}
+ description: per-node configuration map
+
+resources:
+ userdata:
+ type: OS::Heat::MultipartMime
+ properties:
+ parts:
+ - config: {get_resource: OsNetConfigMappings}
+
+ OsNetConfigMappings:
+ type: OS::Heat::SoftwareConfig
+ properties:
+ group: ungrouped
+ config:
+ str_replace:
+ template: |
+ #!/bin/sh
+ eth_addr=$(/sbin/ifconfig eth0 | grep ether | awk '{print $2}')
+ mkdir -p /etc/os-net-config
+
+ # Create an os-net-config mapping file, note this defaults to
+ # /etc/os-net-config/mapping.yaml, so we use that name despite
+ # rendering the result as json
+ echo '$node_lookup' | python -c "
+ import json
+ import sys
+ import yaml
+ input = sys.stdin.readline() or '{}'
+ data = json.loads(input)
+ for node in data:
+ if '${eth_addr}' in data[node].values():
+ interface_mapping = {'interface_mapping': data[node]}
+ with open('/etc/os-net-config/mapping.yaml', 'w') as f:
+ yaml.safe_dump(interface_mapping, f, default_flow_style=False)
+ break
+ "
+ params:
+ $node_lookup: {get_param: NetConfigDataLookup}
+
+outputs:
+ OS::stack_id:
+ value: {get_resource: userdata}