Cron for Kubernetes

by MuchLearning

Introduction

This container can be used to run periodic tasks in Kubernetes.

Configuration

To add tasks to run, add a /bin/sh script to /etc/periodic/{15min|hourly|daily|weekly|monthly}. One way to do this in Kubernetes is to mount a ConfigMap onto these directories. The cron.yaml file gives an example of doing this. It creates 5 ConfigMaps, one for each of the supported periods.

This container includes kubectl, which can be used to run commands in other pods. See the cron-daily ConfigMap for an example of using this.