Amazon Linux 2 to Amazon Linux 2023 Migration: Key Changes, Challenges, and Lessons Learned
I recently completed an end-to-end migration from Amazon Linux 2 to Amazon Linux 2023 across multiple AWS accounts within my current organization, Sysco. This hands-on experience covered workload discovery, AMI references, Launch Templates, ASGs, user-data scripts, package dependencies, runtime changes, and CI/CD agent updates. Please read my full Medium article, where I share the complete migration approach, real-world issues, challenges, lessons learned, and key technical considerations.
Amazon Linux 2 to Amazon Linux 2023 Migration
I recently published a detailed Medium article about my hands-on experience migrating from Amazon Linux 2 to Amazon Linux 2023 across multiple AWS accounts.
In this article, I have covered the migration approach, planning steps, technical considerations, real-world issues, challenges, and lessons learned during the migration process.
This migration was not just an AMI replacement. It required reviewing workloads, AMI references, Launch Templates, Auto Scaling Groups, user-data scripts, package dependencies, runtime changes, and CI/CD agent configurations.
Please read the full article using the Medium link attached to this post.
https://medium.com/@d.chamith.athukorala/amazon-linux-2-to-amazon-linux-2023-migration-key-changes-challenges-and-lessons-learned-5a76c521a8e4
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