Support for SNMPv1

[Chaz6]

I would like to use dckr-mrtg with a HP LaserJet P2015 printer which requires SNMPv1. When I try to add the device, it reports Timeout: No Response from [host].

[fboaventura]

Let me see what I can do :)

[fboaventura]

Hi @Chaz6!

Can you, please, give a run to fboaventura/dckr-mrtg:mrtg-rrd and see if it will work for you?

I was already working on a change, to implement rrdtool so I sized the opportunity to make it live. Please, read the README.md and verify the changes, if there is anything that you may have to change on your side.

If everything works on your side, I'll merge into master and make a proper release.

Thanks!

[Chaz6]

Thanks! I will give it a try this afternoon.

[Chaz6]

The device picked up correctly, but it did not show up on the main page.

mrtg_1  | --base: Get Device Info on public@PRINTER:::::1
mrtg_1  | --base: Vendor Id: hp
mrtg_1  | --base: Populating confcache
mrtg_1  | --base: Get Interface Info
mrtg_1  | --base: Walking ifIndex
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifIndex = 1
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifIndex = 2
mrtg_1  | --base: Walking ifType
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifType = 24
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifType = 6
mrtg_1  | --base: Walking ifAdminStatus
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifAdminStatus = 1
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifAdminStatus = 1
mrtg_1  | --base: Walking ifOperStatus
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifOperStatus = 1
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifOperStatus = 1
mrtg_1  | --base: Walking ifMtu
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifMtu = 1500
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifMtu = 1500
mrtg_1  | --base: Walking ifAlias
mrtg_1  | --base: Walking ifSpeed
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 1 -> ifSpeed = 0
mrtg_1  | --snpd:   public@PRINTER:::::1 -> 2 -> ifSpeed = 10000000
mrtg_1  | --base: Writing /etc/mrtg/conf.d/PRINTER.cfg

I also noticed there appears to be a bit of corruption in the charts:-

Finally, some resources seem to be missing:-

[fboaventura]

Hi @Chaz6!

I couldn't reproduce the missing graphic on the main page. I've only seen this on my first run of this instance, before the first MRTG execution. But if you are mounting the volumes for persistency, please, make sure that you are pointing the volumes to the right place:

    volumes:
      - "./conf.d:/etc/mrtg/conf.d"
      - "./html:/mrtg/html"

As for the graphic corruption, here they are showing like this, with the nan before it pools the devices for the second time and has actual data do plot:

After the second pooling, everything gets back to normal:

I've fixed the missing resources and changed the graphic font to something more readable.

[fboaventura]

@Chaz6 did you have the opportunity to validate? Can I close the issue? :)