locationlabs/docker_aws-cloudwatch-metrics

Provides the docker image for aws cloudwatch metrics

docker_aws-cloudwatch-metrics

Introduction:

AWS cloud watch does not provide memory usage and swap usage stats out of box. In order to obtain these stats, a set of scripts are to be installed and run on the box. This repo provides the docker image for containing the scripts.

Note:

Most of the Linux tools providing system resource metrics were created before cgroups even existed (e.g.: free and top, both from procps). They usually read memory metrics from the proc filesystem: /proc/meminfo, /proc/vmstat, /proc/PID/smaps and others.

Unfortunately /proc/meminfo, /proc/vmstat and friends are not containerized. Meaning that they are not cgroup-aware. They will always display memory numbers from the host system (physical or virtual machine) as a whole, which is the reason why this docker image exists.