1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
# frozen_string_literal: true
def mysql_id_get
# Convert the existing mac to an integer
macval = Facter.value(:macaddress).delete(':').to_i(16)
# Valid range is from 1 - 4294967295 for replication hosts.
# We can not guarantee a fully unique value, this reduces the
# full mac value down to into that number space.
#
# The -1/+1 ensures that we keep above 1 if we get unlucky
# enough to hit a mac address that evenly divides.
(macval % (4_294_967_295 - 1)) + 1
end
Facter.add('mysql_server_id') do
setcode do
mysql_id_get
rescue StandardError
nil
end
end
|
