Hi,
I've got a custom fact called is_internal that produces a Boolean value:
# puppet apply -e 'notice(type($is_internal))'
Notice: Scope(Class[main]): Boolean
I'm using it in my puppet.conf template like this:
server=<%if @is_internal == true -%>puppetmaster-internal<% else
-%>puppetmaster<% end -%>
The fact is relatively simple, it checks to see if any interface matches
the regexp 10.0.1, and if so, it sets is_internal to true (I'm including
the fact below).
Strangely, two machines with the same node definition are producing
different results. On machine A if I run puppet, is_internal is evaluated
to be false, and the template is set to have 'puppetmaster-internal', but
on machine B it somehow evaluates to be 'true' and sets the value to the
non-internal one in the template.
As you can see from the interfaces configuration, neither machine has
10.0.1.x configured for their interface (they use 10.0.2.x), see below for
the output of 'ip addr ls'.
Both machines respond with 'false' when I do `facter -p is_internal`, yet,
when Machine B has puppet run, for some reason it is evaluated to be true
via puppet:
Machine A:
# facter -p is_internal
false
# puppet apply -e 'notice($is_internal)'
Notice: Scope(Class[main]): false
Machine B:
# facter -p is_internal
false
# puppet apply -e 'notice($is_internal)'
Notice: Scope(Class[main]): true
Both run 4.8.2 puppet version and facter 2.4.6. What could possibly make
Machine B change this value when it is run through puppet?!
Thanks for any ideas, I'm going absolutely insane with this.
Machine A:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-public state UP group default qlen 1000
link/ether 00:30:48:7c:d7:78 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-private state UP group default qlen 1000
link/ether 00:30:48:7c:d7:79 brd ff:ff:ff:ff:ff:ff
5: br-private: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default
link/ether 00:30:48:7c:d7:79 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.11/24 brd 10.0.2.255 scope global br-private
valid_lft forever preferred_lft forever
inet6 fe80::230:48ff:fe7c:d779/64 scope link
valid_lft forever preferred_lft forever
6: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-public state UNKNOWN group default qlen 500
link/ether fe:0a:cf:dd:a8:b2 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc0a:cfff:fedd:a8b2/64 scope link
valid_lft forever preferred_lft forever
10: tap1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master br-public state UNKNOWN group default qlen 500
link/ether fe:1e:ec:4c:ac:6c brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc1e:ecff:fe4c:ac6c/64 scope link
valid_lft forever preferred_lft forever
Machine B:
root@mesange-pn:/var/lib/puppet/lib/facter# ip a ls
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-public state UP group default qlen 1000
link/ether 00:30:48:7e:52:18 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-private state UP group default qlen 1000
link/ether 00:30:48:7e:52:19 brd ff:ff:ff:ff:ff:ff
5: br-private: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default
link/ether 00:30:48:7e:52:19 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.10/24 brd 10.0.2.255 scope global br-private
valid_lft forever preferred_lft forever
inet 10.0.2.1/32 scope global br-private:0
valid_lft forever preferred_lft forever
inet6 fe80::230:48ff:fe7e:5219/64 scope link
valid_lft forever preferred_lft forever
9: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
br-public state UNKNOWN group default qlen 500
link/ether fe:2d:b0:c6:2b:58 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc2d:b0ff:fec6:2b58/64 scope link
valid_lft forever preferred_lft forever
10: tap1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master br-public state UNKNOWN group default qlen 500
link/ether fe:69:06:4b:83:19 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc69:6ff:fe4b:8319/64 scope link
valid_lft forever preferred_lft forever
require 'facter/util/ip'
def has_address(interface)
ip = Facter::Util::IP.get_interface_value(interface, 'ipaddress')
if ip.nil?
false
else
true
end
end
def is_internal(interface)
rfc1918 = Regexp.new('^10\.0\.1\.')
ip = Facter::Util::IP.get_interface_value(interface, 'ipaddress')
if rfc1918.match(ip)
true
else
false
end
end
def find_networks
found_public = found_internal = false
Facter::Util::IP.get_interfaces.each do |interface|
if has_address(interface)
if is_internal(interface)
found_internal = true
else
found_public = true
end
end
end
[found_public, found_internal]
end
# these facts check if any interface is on a public or internal network
# they return the string true or false
# this fact will always be present
Facter.add(:is_internal) do
confine :kernel => Facter::Util::IP.supported_platforms
setcode do
found_public, found_internal = find_networks
found_internal
end
end
Facter.add(:interfaces_internal) do
confine :kernel => Facter::Util::IP.supported_platforms
setcode do
iface=""
Facter::Util::IP.get_interfaces.each do |interface|
if has_address(interface)
if is_internal(interface)
iface += "," unless iface.empty?
iface = iface + Facter::Util::IP.alphafy(interface)
end
end
end
iface
end
end
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