Thanks Greg,

I’ve read that thread, and have been experimenting with rrdgraph.  The problem 
I've run into is figuring out the correct options, data definitions, calc data, 
and graphic elements needed to generate the standard smokeping graph.  I think 
that would work if I could sort all that out.  I got as much as I could from 
other rrd examples and combing through the Graph.pm module in Smokeping, but no 
joy yet.

If anybody has an example of the actual smokeping rrdgraph options and args, 
that would really help.

— Daniel Crandall
Savant - DevOps


From: Gregory Sloop <[email protected]<mailto:[email protected]>>
Reply-To: Greg Sloop <[email protected]<mailto:[email protected]>>
Date: Wednesday, March 23, 2016 at 11:40 AM
To: Daniel Crandall 
<[email protected]<mailto:[email protected]>>, Douglas 
Spindler <[email protected]<mailto:[email protected]>>, 
"[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: [smokeping-users] Automatically download fresh .png snapshot.

This thread might help.

https://www.mail-archive.com/smokeping-users%40lists.oetiker.ch/msg04777.html

-Greg


        That’s actually exactly what I’m trying to avoid. ;)
The keyword is automation.  I need to script this so that I can present static, 
7 day graphs to people outside my dept – without having to spend time manually 
taking screenshots of each graph.

— Daniel Crandall
Savant - DevOps


From: Douglas Spindler <[email protected]<mailto:[email protected]>>
Date: Wednesday, March 23, 2016 at 11:09 AM
To: Daniel Crandall 
<[email protected]<mailto:[email protected]>>, 
"[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: RE: [smokeping-users] Automatically download fresh .png snapshot.

Can’t you just take a screenshot?

From: smokeping-users 
[mailto:[email protected]] On 
Behalf Of Daniel Crandall
Sent: Wednesday, March 23, 2016 10:32 AM
To: [email protected]<mailto:[email protected]>
Subject: [smokeping-users] Automatically download fresh .png snapshot.

Hi,

I need to automatically download .png of 7 day snapshots of certain smokeping 
graphs to send to a group of concerned parties.  I’ve tried two techniques 
without success:

1)  Download the png using wget

I learned about setting the displaymode=a and adjusting the start and end URL 
chunks to get a URL like this:
https://smokeping.oursite.com/smokeping/smokeping.cgi?displaymode=a;start=now-7day;end=now;target=OurServers.HTTPSLatency.prd

This URL gives me a single graph with the snapshot interval I need.  But I 
can’t figure out how to download the actual graph png.  It’s weird because if I 
put the URL in a browser, right click on the graph and save it manually, it 
saves a file called smokeping.png that is the correct graph.  But when I try to 
do the same using wget like this:
`wget -nd -r -l 5 -A png 
https://smokeping.oursite.com/smokeping/smokeping.cgi?displaymode=a;start=now-7day;end=now;target=OurServers.HTTPSLatency.prd`<https://smokeping.oursite.com/smokeping/smokeping.cgi?displaymode=a;start=now-7day;end=now;target=OurServers.HTTPSLatency.prd%60>

It downloads smokeping.png – but instead of it being a graph, this version is 
simply the smokeping logo.  It also downloads the RRD logo, but no other png 
files.

2) Using rrdtool on the rrd files themselves to generate a png of the snapshot 
I’m looking for on my smokeping server, and then copying it to the web server 
dir where I can then download it using wget.
Unfortunately I haven’t been able to figure out the correct rrd parameters and 
DEF, CDEF, AREA..etc. settings to actually generate a smokeping graph.

If anyone can point me in the right direction with either of the above methods 
– or share another technique to achieve the same goal, I would be very grateful.

Thanks!

— Daniel Crandall
Savant - DevOps



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prohibited. If you are not the intended recipient, please immediately notify 
the sender by reply e-mail or at 508.683.2500 and delete this message and its 
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