check_container_cpu

Project Notes

This plugin checks the docker container internal CPU usage, it retrieves the values using docker stats. The plugin outputs also the performance data.

Requirements
- Docker 1.5.0 or higher
- The script requires sudo permissions due docker (this can be prevented if nrpe user is added to docker group)

Usage
sudo ./check_container_cpu.sh <container name> -w <warning threshold> -c <critical threshold>

Output
OK - if the CPU usage is under the warning and critical thresholds
WARNING - if the CPU usage is equal or over the warning threshold and it is under the critical threshold
CRITICAL - if the CPU usage is equal or over the critical threshold
UNKNOWN - if the container does not exist

Examples
$ sudo ./check_container_cpu.sh container -w 80 -c 95
OK - CPU Usage = 7% | CPU Usage=7%;80;95;0;100

$ sudo ./check_container_cpu.sh container -w 80 -c 95
CRITICAL - CPU Usage = 97% | CPU Usage=97%;80;95;0;100

$ sudo ./check_container_cpu.sh notexist -w 80 -c 95
UNKNOWN - notexist does not exist.

For more info visit: https://github.com/ninoabbate/nrpe-plugins#check_container_cpu