NagVis is a visualization addon for the well known network managment system Nagios.
NagVis can be used to visualize Nagios Data, e.g. to display IT processes like a mail system or a network infrastructure.
Add own Iconsets
Example
Your Chief is comming in and tells you, that a technician needs a clear map with more than 250 hosts. You think now: “Hey, that’s not possible, with a full description for every host!” The font in the background image is not the problem, but the std_small-iconset from NagVis is too big for such a request.
Solution
Build your own iconset.
What is an iconset?
A complete iconset consists of 11 files. These files are png images which are named like this:
| Filename | Description |
|---|---|
| <set>_ack.png | Acknowledged problem |
| <set>_downtime.png | Downtime (Host) |
| <set>_error.png | Error while fetching status |
| <set>_unknown.png | Unkown state |
| <set>_critical.png | Critical state |
| <set>_ok.png | Ok state |
| <set>_up.png | Up state (Host) |
| <set>_down.png | Down state (Host) |
| <set>_sdowntime.png | Downtime (Service) |
| <set>_sack.png | Acknowledged problem (Service) |
| <set>_warning.png | Warning state |
NagVis checks for the <set>_ok.png image to list the iconsets, means there have to be an <set>_ok.png image to have a complete iconset which can be choosen in WUI.
Which programm shall I use to create an iconset?
Almost every graphic art software has the possibility to build PNG-files. On this example Photoshop is used to create a smaller version of the std_small iconset called std_mini.
| Iconset | Icon size | icon map |
|---|---|---|
| std_small | 16×16 pixel |
|
| mini | 9×9 pixel |  |
The following images should be created to get a complete iconset.
| mini_ack.png |
| mini_downtime.png |
| mini_error.png |
| mini_unknown.png |
| mini_critical.png |
| mini_ok.png |
| mini_up.png |
| mini_down.png |
| mini_sack.png |
| mini_sdowntime.png |
| mini_warning.png |
Implementing the iconset
To implement the set to your NagVis installation, copy all files to the iconset folder. In version 0.9.x it is nagvis/iconsets, since version 1.x it is nagvis/nagvis/images/iconsets.
The test
Open one of your maps and add a new host-icon. You should now be able to select std_mini as iconset.
