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author | Steven Hardy <shardy@redhat.com> | 2016-01-07 22:26:28 +0000 |
---|---|---|
committer | Steven Hardy <shardy@redhat.com> | 2016-07-01 14:34:39 +0100 |
commit | 8a0f5efc1aaff8b3904b73b9b0606bbc4c049815 (patch) | |
tree | ddc1cfbafc38c416c3314ba7284238463612ed64 /firstboot | |
parent | 30a11c81b16b6dde9dc80800f8c807421ae1f3fa (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.yaml | 65 |
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 00000000..833c3bc2 --- /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} |