927495fe3d
The new master branch should point now to queens instead of pike. So, HOT templates should specify that they might contain features for queens release [1] [1]: https://docs.openstack.org/heat/latest/template_guide/hot_spec.html#queens Change-Id: I7654d1c59db0c4508a9d7045f452612d22493004
115 lines
4.0 KiB
YAML
115 lines
4.0 KiB
YAML
heat_template_version: queens
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description: >
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Configure os-net-config mappings for specific nodes
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Your environment file needs to look like:
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parameter_defaults:
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NetConfigDataLookup:
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node1:
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nic1: "00:c8:7c:e6:f0:2e"
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node2:
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nic1: "00:18:7d:99:0c:b6"
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node3:
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dmiString: 'system-uuid'
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id: 'A8C85861-1B16-4803-8689-AFC62984F8F6'
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nic1: em3
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# Dell PowerEdge
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nodegroup1:
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dmiString: "system-product-name"
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id: "PowerEdge R630"
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nic1: em3
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nic2: em1
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nic3: em2
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# Cisco UCS B200-M4"
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nodegroup2:
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dmiString: "system-product-name"
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id: "UCSB-B200-M4"
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nic1: enp7s0
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nic2: enp6s0
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This will result in the first node* entry where either:
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a) a mac matches a local device
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or b) a DMI String matches the specified id
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being written as a mapping file for os-net-config in
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/etc/os-net-config/mapping.yaml
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parameters:
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# Note this requires a liberty heat or newer in the undercloud due to
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# the 2015-10-15 (which is required to enable str_replace serializing
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# the json parameter to json, another approch with a string parameter
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# will be required for older heat versions)
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NetConfigDataLookup:
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type: json
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default: {}
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description: per-node configuration map
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resources:
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userdata:
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type: OS::Heat::MultipartMime
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properties:
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parts:
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- config: {get_resource: OsNetConfigMappings}
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OsNetConfigMappings:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config:
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str_replace:
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template: |
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#!/bin/sh
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eth_addr=$(cat /sys/class/net/*/address | tr '\n' ',')
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mkdir -p /etc/os-net-config
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# Create an os-net-config mapping file, note this defaults to
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# /etc/os-net-config/mapping.yaml, so we use that name despite
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# rendering the result as json
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echo '$node_lookup' | python -c "
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import json
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import sys
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import copy
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from subprocess import PIPE, Popen
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import yaml
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def write_mapping_file(interface_mapping):
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with open('/etc/os-net-config/mapping.yaml', 'w') as f:
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yaml.safe_dump(interface_mapping, f, default_flow_style=False)
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# cast to lower case for MAC address match
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eth_addr='$eth_addr'.lower()
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input = sys.stdin.readline() or '{}'
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data = json.loads(input)
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for node in data:
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interface_mapping = {'interface_mapping':
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copy.deepcopy(data[node])}
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if 'dmiString' in interface_mapping['interface_mapping']:
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del interface_mapping['interface_mapping']['dmiString']
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if 'id' in interface_mapping['interface_mapping']:
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del interface_mapping['interface_mapping']['id']
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# Match on mac addresses first - cast all to lower case
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lc_interface_mapping = copy.deepcopy(interface_mapping)
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for key,x in lc_interface_mapping['interface_mapping'].items():
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lc_interface_mapping['interface_mapping'][key] = x.lower()
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if any(x in eth_addr.split(',') for x in lc_interface_mapping['interface_mapping'].values()):
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write_mapping_file(lc_interface_mapping)
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break
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# If data contain dmiString and id keys, try to match node(group)
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if 'dmiString' in data[node] and 'id' in data[node]:
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ps = Popen([ 'dmidecode',
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'--string', data[node].get('dmiString') ],
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stdout=PIPE)
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out, err = ps.communicate()
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if data[node].get('id') == out.rstrip():
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write_mapping_file(lc_interface_mapping)
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break
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"
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params:
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$node_lookup: {get_param: NetConfigDataLookup}
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outputs:
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OS::stack_id:
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value: {get_resource: userdata}
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