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  • Issue #214 - AWS Glue to Airflow, Terralith (again), Orchestrating AI, EKS Auto Mode, SSH with AWS Session Manager, Terraform Git Backend

Issue #214 - AWS Glue to Airflow, Terralith (again), Orchestrating AI, EKS Auto Mode, SSH with AWS Session Manager, Terraform Git Backend

February 26, 2025

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Articles 📚

How I reduced $10000 Monthly AWS Glue bill to $400 using Airflow

Akash Singh shares a cost-saving journey of reducing a $10,000 AWS Glue bill to $400 by switching to Apache Airflow. The article explains the migration process, cost optimization strategies, and performance improvements achieved with the new workflow.

dev.to/skysingh04/how-i-reduced-10000-monthly-aws-glue-bill-to-400-using-airflow-147k

Terralith: The Terraform and OpenTofu Boogieman

Malcolm Matalka introduces Terralith, a PoC of a tool designed to simplify Terraform workflows by automating module discovery and dependency management. The article demonstrates how Terralith improves infrastructure code organization and collaboration.

pid1.dev/posts/terralith

Orchestrating AI: Dynamic LLM Routing based on AWS Step Functions

Volodymyr Marynychev describes implementing dynamic LLM routing on AWS to reduce costs while maintaining response quality. The article covers using services like Bedrock, Lambda, and CloudWatch to route requests based on performance and cost metrics.

dev.to/aws-builders/aws-powered-dynamic-llm-routing-reducing-costs-maintaining-quality-52ab

Amazon EKS Auto Mode with Terraform

Marcin Cuber explains how to set up Amazon EKS Auto Mode using Terraform for simplified Kubernetes cluster management. The article details resource provisioning, autoscaling configuration, and best practices for optimizing costs and performance.

marcincuber.medium.com/amazon-eks-auto-mode-with-terraform-8b15c2f1aa62

How to Substitute SSH with AWS Session Manager

Jurijs Ivolga demonstrates using AWS Systems Manager Session Manager for secure, auditable, and browser-based SSH access to EC2 instances without opening inbound ports. The guide covers setup, IAM permissions, and session management best practices.

cyberpunk.tools/jekyll/update/2025/01/07/aws-systems-manager-session-manager.html

Open-source projects

plumber-cd/terraform-backend-git

Terraform HTTP Backend implementation uses the Git repository as storage. AB: This is not a terrible idea, as you’ve been told before! Check it out 😃 

github.com/plumber-cd/terraform-backend-git

zapier/tfbuddy

Terraform Cloud pull request alternate workflow.

github.com/zapier/tfbuddy

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