DevOps Chronicles

Last week we encountered a peculiar issue where services in different namespaces couldn't communicate despite network policies being seemingly correct. After hours of debugging, I discovered the subtle interaction between CNI plugins and iptables rules that wasn't documented clearly anywhere...

When your infrastructure grows beyond a few hundred resources, Terraform state management becomes critical. In this post, I'll share how we restructured our monolithic state files into workspace-separated configurations, reducing plan times from 15 minutes to under 2 minutes...

Security scanning shouldn't be an afterthought in your deployment pipeline. I recently migrated our Java microservices pipeline from a basic SonarQube setup to a comprehensive Snyk integration, catching 47 vulnerabilities that had been sitting in production for months...

Commercial monitoring solutions can cost thousands per month at scale. Here's how we built a robust monitoring infrastructure using Prometheus, Grafana, and AlertManager for under $200/month, handling 50,000+ active time series with 99.9% availability...

Everyone knows to run containers as non-root, but what about seccomp profiles, AppArmor configurations, and read-only root filesystems? This comprehensive guide covers advanced hardening techniques that actually stopped a container escape attempt in our environment...