Infrastructure¶

February 20, 2026
in Infrastructure, Kubernetes
10 min read

Migrating EKS Nodes to Bottlerocket: Architecture, Operations, and Lessons Learned

After migrating multiple EKS clusters from Amazon Linux 2 to Bottlerocket, I want to share the architecture differences, what changed operationally, the EBS snapshot workflow we built for image caching, and the production challenges we hit along the way.

February 20, 2026
in Infrastructure, Redis
7 min read

Redis Sentinel on Kubernetes: Architecture, Failover, and Cache Invalidation

Running Redis in production demands more than a single instance. After implementing Redis Sentinel on Kubernetes for caching across several services, I want to share the architecture decisions, failover mechanics, persistence strategies, and cache invalidation patterns I learned along the way.