Issue #11196 has been updated by Pieter Lexis.
If you don't mind me asking, what is the use of this fact at all?
$ sudo arp -en -i eth0 | sed -e 1d
172.29.96.252 ether 40:61:86:51:69:5f C
eth0
$ ping -c 1 172.29.96.31
PING 172.29.96.31 (172.29.96.31) 56(84) bytes of data.
64 bytes from 172.29.96.31: icmp_req=1 ttl=64 time=0.336 ms
--- 172.29.96.31 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.336/0.336/0.336/0.000 ms
$ sudo arp -en -i eth0 | sed -e 1d
172.29.96.31 ether bc:ae:c5:aa:52:1b C
eth0
172.29.96.252 ether 40:61:86:51:69:5f C
eth0
The fact would change from 172.29.96.252 to 172.29.96.31.....
The arp module creates a fact 'arp' if and only if the first entry in the
arptable is "fe:ff:ff:ff:ff:ff". Why is this anyway (the only module using this
fact is ec2)?
I could check the arp table in the ec2 module and filter for fe:ff:ff:ff:ff:ff
in that module... But it kind-of defeats the purpose of having access to facts
internally in the first place(would fix this issue though).
----------------------------------------
Bug #11196: EC2 facts do not get created when the arp table contains more than
1 entry (patch included)
https://projects.puppetlabs.com/issues/11196
Author: Pieter Lexis
Status: Investigating
Priority: Normal
Assignee:
Category: library
Target version:
Keywords: ec2 arp
Branch:
Affected Facter version: 1.6.3
We have an EC2 instance with a QEMU vm on it (don't ask, we cried as well when
this was the only solution). This means that we have a bridge interface on the
EC2 instance and that the arp table contains more than 1 entry (on EC2 the only
entry is the gateway). The code in the arp module does not take this into
account. Than the ec2 code infers that this isn't an ec2 instance (and doesn't
create the ec2 facts), but it is. If you would be running a VPN service on EC2,
this bug could hit you as well (as you have more than 1 interface).
This patch fixes that.
Pull request follows.
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