Re: [Puppet Users] macaddress fact

2010-04-30 Thread Michael DeHaan
On Fri, Apr 30, 2010 at 2:16 AM, Daniel Pittman  wrote:
> "Marcus, Allan B"  writes:
>
>> How does puppet determine the macaccess fact? For example, my MacPro has two
>> enternet ports.
>>
>> macaddress => 00:25:00:ef:fb:ce
>> macaddress_en0 => 00:25:00:ef:cf:a1
>> macaddress_en1 => 00:25:00:ef:fb:ce
>>
>> if I change the wire to the other port (and set the IP address appropriately
>> in network), I get the same factor results. It seems factor always report
>> en1 as the "macaddress". Is "macaddress" supposed to be the active mac
>> address? I suppose it would be difficult to determine 'active' if the
>> computer was plugged into two networks at the same time, but that is rarely
>> the case in my environment.
>>
>> Any ideas on how to get the 'active' mac address?
>
> Er, you noted that you "fixed" this elsewhere, but...
>
> The 'macaddress' "fact" is a load of random garbage with no meaningful
> connection to reality: it picks a random address from the output of ifconfig,
> rather than anything useful.
>
> The idea of an "active" MAC is meaningless: my laptop currently has two
> "active" MAC addresses:
>
> 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.45  metric 1
> 192.168.201.0/24 dev wlan0  proto kernel  scope link  src 192.168.201.109  
> metric 2
> 169.254.0.0/16 dev eth0  scope link  metric 1000
> default via 192.168.1.1 dev eth0  proto static
>
> macaddress_eth0 => 00:1c:25:1e:26:6f
> macaddress_wlan0 => 00:1d:e0:55:48:45
>
> There is no meaningful way to talk about one of those being "active" to the
> exclusion of the other: both are active, have real routes, and are interacting
> with external devices.  You can even fail-over traffic between the two.
>
>
> The right fix would be to put that poor, meaningless fact to sleep before
> someone mistakes it for something actually *significant*.
>

Yep.

The goal for Facter is to have these facts eventually namespaced,
though we probably will have to keep existing fact names
for backwards compatibility.   That is to say, I want to be able to
use:nic::wlan0::mac_address  and nic::eth0::ip_address, etc.

ipaddress itself is not so predictable either in a multi NIC setup, so
being explicit is good.Even virtual machines can be dual homed.

--Michael

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Re: [Puppet Users] macaddress fact

2010-04-29 Thread Daniel Pittman
"Marcus, Allan B"  writes:

> How does puppet determine the macaccess fact? For example, my MacPro has two
> enternet ports.
>
> macaddress => 00:25:00:ef:fb:ce
> macaddress_en0 => 00:25:00:ef:cf:a1
> macaddress_en1 => 00:25:00:ef:fb:ce
>
> if I change the wire to the other port (and set the IP address appropriately
> in network), I get the same factor results. It seems factor always report
> en1 as the "macaddress". Is "macaddress" supposed to be the active mac
> address? I suppose it would be difficult to determine 'active' if the
> computer was plugged into two networks at the same time, but that is rarely
> the case in my environment.
>
> Any ideas on how to get the 'active' mac address?

Er, you noted that you "fixed" this elsewhere, but...

The 'macaddress' "fact" is a load of random garbage with no meaningful
connection to reality: it picks a random address from the output of ifconfig,
rather than anything useful.

The idea of an "active" MAC is meaningless: my laptop currently has two
"active" MAC addresses:

192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.45  metric 1
192.168.201.0/24 dev wlan0  proto kernel  scope link  src 192.168.201.109  
metric 2
169.254.0.0/16 dev eth0  scope link  metric 1000
default via 192.168.1.1 dev eth0  proto static

macaddress_eth0 => 00:1c:25:1e:26:6f
macaddress_wlan0 => 00:1d:e0:55:48:45

There is no meaningful way to talk about one of those being "active" to the
exclusion of the other: both are active, have real routes, and are interacting
with external devices.  You can even fail-over traffic between the two.


The right fix would be to put that poor, meaningless fact to sleep before
someone mistakes it for something actually *significant*.

Daniel
-- 
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   ♽ made with 100 percent post-consumer electrons

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Re: [Puppet Users] macaddress fact

2010-04-29 Thread Marcus, Allan B
I figured it out. It is an oversight in the macaddress.rb file for facter. I've 
already fixed it on my computer and I will open a bug to have it fixed.

This only affects darwin nodes.

---
Thanks,

Allan Marcus
505-667-5666



On Apr 29, 2010, at 11:46 AM, Marcus, Allan B wrote:

> How does puppet determine the macaccess fact? For example, my MacPro has two 
> enternet ports.
> 
> macaddress => 00:25:00:ef:fb:ce
> macaddress_en0 => 00:25:00:ef:cf:a1
> macaddress_en1 => 00:25:00:ef:fb:ce
> 
> if I change the wire to the other port (and set the IP address appropriately 
> in network), I get the same factor results. It seems factor always report en1 
> as the "macaddress". Is "macaddress" supposed to be the active mac address? I 
> suppose it would be difficult to determine 'active' if the computer was 
> plugged into two networks at the same time, but that is rarely the case in my 
> environment.
> 
> Any ideas on how to get the 'active' mac address? 
> 
> 
> 
> 
> 
> ---
> Thanks,
> 
> Allan Marcus
> 505-667-5666
> 
> 
> 
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> 

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