Check Commander - Curses interface for Checkmk

Sat, 24 Oct 2020 00:00:00 +0000

A curses interface for checkmk. I named it Checkmk Commander, but Check Commander is easier to say.

I use Checkmk daily. A few common tasks are acknowledging, downtiming and reinventorizing hosts and services. In the web UI this takes lots of clicks and time. So I wrote this client to optimize my workflow.

Example workflow in web UI:

A new service has been detected on host1, thus I have to reinventorize it.
Click on host name.
Click WATO
Click services
Click “fix all missing/vanished”, wait.
Click “1 change”
Click “Activate affected”, wait.

The same in Check Commander:

A new service has been detected on host1, thus I have to reinventorize it.
Navigate up/down to target the host
Hit “r” and enter to confirm. Reinventorize happens in background, and one does not have to wait for it.

There are hotkeys for opening web pages (or run other commands) linked with the selected host. I use “w” to open the host’s wiki page, “b” to open the checkmk web UI in browser and “t” for opening a new terminal with ssh to the host.

Since this is in curses, one can also run it in tmux or on a terminal server. Browser commands can then open in elinks, w3c, or other suitable CLI software.

Easy install from pip. See screenshots and read more at gitlab.

Checkmk Plugins, part 1

Sat, 11 Apr 2020 00:00:00 +0000

Some of my checkmk plugins, Webchecks, Blacklist and SQL Dump. Easy deployments.

# Blacklist

If you have a server which is sending mail, drop this check in place. It will check the host it’s running from against a bunch of blacklists. No configuration needed.

checkmk-blacklist:

# Webchecks

Easy and expansive check of web services. It will:

Follow redirects
Check (configurable) status code
If ssl, check cert and chain. Check remaining time.
Configurable string check.
If URL contains dev, stage or such, complain if the site isn’t robots-blocked. Else, complain if the site is robots-blocked.
Find URLs to check from apache or nginx config.

checkmk-webchecks:

# SQL dumps

This one is of less general use, and is published more as an example for further development. It’s written for an inhouse SQL dumper, somewhat similar to automysqlbackup. It will check for a running database server, and if found check for recent database dumps.

checkmk-stasissqldump:

Surveillance on falkp.no/blog

Check Commander - Curses interface for Checkmk

Checkmk Plugins, part 1

# Blacklist

# Webchecks

# SQL dumps