I run checkmk in a Docker container. After updating to version 2.2, the checks on the network interfaces of the checkmk container no longer run, only “DOWN” is displayed. It turned out that “ethtool” has to be installed to make these checks run again. Is it possible to (re)integrate “ethtool” into the image?
ethtool is needed by the check_mk_agent to monitor NICs.
Why would that be relevant inside a Docker container?
If a check is perhaps generating a large network load, I have little other way of detecting this.
What check should this be?
I have single instances with over 1k switches and check interval 1 minute.
Network load only around 10 Mbit constant.