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authorSteven Hardy <shardy@redhat.com>2016-01-07 22:26:28 +0000
committerSteven Hardy <shardy@redhat.com>2016-07-01 14:34:39 +0100
commit8a0f5efc1aaff8b3904b73b9b0606bbc4c049815 (patch)
treeddc1cfbafc38c416c3314ba7284238463612ed64 /firstboot
parent30a11c81b16b6dde9dc80800f8c807421ae1f3fa (diff)
Add example of creating per-node os-net-config mappings
Adds an example of proving a mapping file for all nodes, then extracting the data for each node based on a lookup of the mac address. Some assumptions are made (e.g the hard-coded reference to eth0), but it should be easily modified to suit specific environments. Usage via an enviroment file will look like: resource_registry: OS::TripleO::NodeUserData: os-net-config-mappings.yaml parameter_defaults: NetConfigDataLookup: host1: nic1: "00:c8:7c:e6:f0:2e" host2: nic1: "00:18:7d:99:0c:b6" Note this version requires liberty heat in the undercloud due to the use of a new str_replace feature to serialize the json parameter. Change-Id: I7da9c9d8805e676a383e888a7d77f05d3432ab12
Diffstat (limited to 'firstboot')
-rw-r--r--firstboot/os-net-config-mappings.yaml65
1 files changed, 65 insertions, 0 deletions
diff --git a/firstboot/os-net-config-mappings.yaml b/firstboot/os-net-config-mappings.yaml
new file mode 100644
index 0000000..833c3bc
--- /dev/null
+++ b/firstboot/os-net-config-mappings.yaml
@@ -0,0 +1,65 @@
+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}