tripleo-heat-templates/firstboot/os-net-config-mappings.yaml
Alex Schultz b87f6a257c Handle upper and lower case system uuids
We need to be able to handle when system uuids are upper or lower case
because newer versions of dmidecode have normalized to lower case. Users
who were on CentOS/RHEL 7.5 and older may have per-node customizations
with upper case which turn lowercase with an update to 7.6. This affects
hieradata customizations as well as os-net-config mapping files. This
change outputs both an upper and lowercase hieradata uuid file to handle
the both versions of the UUID. Additionally this change normalizes the
id comparison for os-net-config mappings to lower case.

Conflicts:
	puppet/extraconfig/pre_deploy/per_node.yaml

Change-Id: I65f46056f8a908c60c99d1cee3738344a0bce6b7
Closes-Bug: #1816652
(cherry picked from commit e2a8a494c5)
2019-02-21 12:29:16 -07:00

116 lines
4.1 KiB
YAML

heat_template_version: queens
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"
node3:
dmiString: 'system-uuid'
id: 'A8C85861-1B16-4803-8689-AFC62984F8F6'
nic1: em3
# Dell PowerEdge
nodegroup1:
dmiString: "system-product-name"
id: "PowerEdge R630"
nic1: em3
nic2: em1
nic3: em2
# Cisco UCS B200-M4"
nodegroup2:
dmiString: "system-product-name"
id: "UCSB-B200-M4"
nic1: enp7s0
nic2: enp6s0
This will result in the first node* entry where either:
a) a mac matches a local device
or b) a DMI String matches the specified id
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=$(cat /sys/class/net/*/address | tr '\n' ',')
mkdir -p /etc/os-net-config
# Create an os-net-config mapping file, note this defaults to
# /etc/os-net-config/mapping.yaml, so we use that name despite
# rendering the result as json
echo '$node_lookup' | python -c "
import json
import sys
import copy
from subprocess import PIPE, Popen
import yaml
def write_mapping_file(interface_mapping):
with open('/etc/os-net-config/mapping.yaml', 'w') as f:
yaml.safe_dump(interface_mapping, f, default_flow_style=False)
# cast to lower case for MAC address match
eth_addr='$eth_addr'.lower()
input = sys.stdin.readline() or '{}'
data = json.loads(input)
for node in data:
interface_mapping = {'interface_mapping':
copy.deepcopy(data[node])}
if 'dmiString' in interface_mapping['interface_mapping']:
del interface_mapping['interface_mapping']['dmiString']
if 'id' in interface_mapping['interface_mapping']:
del interface_mapping['interface_mapping']['id']
# Match on mac addresses first - cast all to lower case
lc_interface_mapping = copy.deepcopy(interface_mapping)
for key,x in lc_interface_mapping['interface_mapping'].items():
lc_interface_mapping['interface_mapping'][key] = x.lower()
if any(x in eth_addr.split(',') for x in lc_interface_mapping['interface_mapping'].values()):
write_mapping_file(lc_interface_mapping)
break
# If data contain dmiString and id keys, try to match node(group)
if 'dmiString' in data[node] and 'id' in data[node]:
ps = Popen([ 'dmidecode',
'--string', data[node].get('dmiString') ],
stdout=PIPE, universal_newlines=True)
out, err = ps.communicate()
# See LP#1816652
if data[node].get('id').lower() == out.rstrip().lower():
write_mapping_file(lc_interface_mapping)
break
"
params:
$node_lookup: {get_param: NetConfigDataLookup}
outputs:
OS::stack_id:
value: {get_resource: userdata}