Aged machines pruner

This repo contains Openshift specific helm chart for automating the deletion of worker machines that did hit a certain age.

Description

For some reasons, it might be needed to recreate Machines upon reaching a certain age, 7 days for example

This task might be performed by setting up a cron-job which will run a program checking machines' age and asking openshift to delete machines that reached a certain age.

To simplify such cron job deployment and its further life cycle management it's reasonable to use a helm chart there.

The main logic of this program lives within the helm chart and passes to the container as a config map for further execution. This program requires oc(openshift-cli) binary presence in PATH and Python 3.6+.

Usage

Prerequisites

• Helm 3 is installed. Installation guide: https://helm.sh/docs/intro/install/
• Administrative access to OpenShift cluster for being able to add additional roles into the openhsift-machine-api namespace.

Installation:

• Clone this repo
• Run make install for install helm chart

Note: By default, the chart is installed in DRY_RUN mode, machines will not be deleted. To enable actual machines deletion run make disable-dry-run