[PATCH] auvirt: a new tool for reporting events related to virtual machines

[Steve Grubb]

Hello,

On Friday, January 13, 2012 12:25:05 PM Marcelo Cerri wrote:
> These are some output examples of auvirt. What do you think?

I think you are on the right track.


> I just added a "--full" option because libvirt can generate several
> resource events and this can make the output confusing.

Hmm. Why not call it --resource if its a resource specific report? Full to me 
implies everything for all guests.


> $ ./auvirt
> start guest-name-1    root    Tue Jan 10 11:05
> stop  guest-name-1    root    Tue Jan 10 11:39
> start guest-name-2    root    Wed Jan 11 15:23
> start guest-name-2    root    Wed Jan 11 16:28
> start guest-name-1    root    Wed Jan 12 19:47

Why not collapse these into 1 line like last that shows a duration?

start guest-name-1    root    Tue Jan 10 11:05 - 11:39 (00:34)

Do you have any samples for when a guest is paused and restarted? I would also 
collapse those into a line showing the duration of the pause.

pause guest-name-1    root    Tue Jan 10 11:15 - 11:30 (00:15)


> $ ./auvirt --show-uuid
> start guest-name-1 fb4149f5-9ff6-4095-f6d3-a1d03936fdfa root    Tue Jan
> 10 11:05
> stop  guest-name-1 fb4149f5-9ff6-4095-f6d3-a1d03936fdfa root    Tue Jan
> 10 11:39
> start guest-name-2 f937029b-93ca-4e13-b40b-663f46323503 root    Wed Jan
> 11 15:23
> start guest-name-2 f937029b-93ca-4e13-b40b-663f46323503 root    Wed Jan
> 11 16:28
> start guest-name-1 fb4149f5-9ff6-4095-f6d3-a1d03936fdfa root    Wed Jan
> 12 19:47
> 
> $ ./auvirt --summary # keep the same behaviour
> 
> $ ./auvirt --uuid fb4149f5-9ff6-4095-f6d3-a1d03936fdfa
> start guest-name-1    root    Tue Jan 10 11:05
> stop  guest-name-1    root    Tue Jan 10 11:39
> start guest-name-1    root    Wed Jan 12 19:47
> 
> $ ./auvirt --vm-name guest-name-2
> start guest-name-2    root    Wed Jan 11 15:23
> start guest-name-2    root    Wed Jan 11 16:28

Maybe it will be easier on admin's fingers to just call the above option --vm? I 
like shorter names if they make sense and are unambiguous.

 
> $ ./auvirt --full --uuid f937029b-93ca-4e13-b40b-663f46323503
> res   guest-name-2    root    Wed Jan 11 15:23    disk    "?"
> "/images/guest-2.img"
> res   guest-name-2    root    Wed Jan 11 15:23    vcpu    "0"    "4"
> res   guest-name-2    root    Wed Jan 11 15:23    net     "?"
> "52:54:00:DB:AE:B4"
> res   guest-name-2    root    Wed Jan 11 15:23    mem     "?"    "1048576"
> start guest-name-2    root    Wed Jan 11 15:23
> avc   guest-name-2    root    Wed Jan 11 19:49    read
> "/images/guest-2.img"    denied
> res   guest-name-2    root    Wed Jan 11 15:23    mem     "1048576"
> "2097152"
> stop  guest-name-2    root    Wed Jan 11 16:28

I would separate avcs and anomalies into a security report. Then for the 
resource section, I would rearrange the fields so the time is at the end and then 
show the duration so you collapse 2 lines (assignment and disposal) into 1 line.

For things that are disposed of at shutdown, you can just put "down" like last 
does when users are logged out by the system shutdown.

Overall, I think this is heading in the right direction.

Thanks,
 -Steve