The article provides a comprehensive guide to automating Kubernetes log management using Kubernetes CronJobs, which facilitate log compression and uploading to AWS S3, thereby reducing storage costs and improving log retrieval efficiency. It outlines the necessary prerequisites, such as having a Kubernetes cluster, AWS S3 bucket, and DockerHub account, and provides a step-by-step process for setting up the environment, including creating a PostgreSQL StatefulSet and a service within Kubernetes. The guide also details scripting in Node.js to programmatically retrieve, compress, and upload logs using Kubernetes and AWS SDKs, followed by Dockerizing the script for deployment to DockerHub. Instructions for creating a CronJob to automate these tasks at regular intervals are provided, along with commands for deploying and monitoring the CronJob within the Kubernetes cluster. The article concludes by emphasizing the value of Kubernetes CronJobs in automating periodic tasks like log management and suggests exploring Earthly for further development workflow optimizations.