DevOps & Cloud

GitOps with Flux v2: Production Setup with Multi-Tenant Workloads

Flux v2 is the mature production GitOps engine for Kubernetes in 2026, having stabilized into a CNCF graduated project with broad adoption. This is a practical guide for running it at scale: the right repository structure, multi-tenant isolation patterns that actually work, secret management with SOPS or sealed-secrets, image automation, drift detection, and the operational patterns that turn GitOps from a buzzword into a reliable deployment model....

May 22, 2026 10 min

Kubernetes 1.31 Upgrade Guide: Breaking Changes and a Safe Migration Path

Kubernetes 1.31 is one of the more disruptive recent releases — removed in-tree volume plugins, AppArmor going GA, structured authentication maturing, and several long-deprecated APIs finally going away. This is a battle-tested upgrade guide for production clusters: what breaks, what to test on staging, and a safe step-by-step migration path that does not page you at 2 AM....

May 10, 2026 10 min

GitOps Workflow: Managing Infrastructure with Git and ArgoCD

Implement GitOps with ArgoCD for declarative infrastructure management. Learn Git as single source of truth, automated deployment, sync strategies, and rollback procedures....

Apr 27, 2026 13 min

This Week in IT: Database Security Best Practices, Ansible Updates, and Training Deals

Week 3 of March 2026: database security vulnerabilities and fixes, Ansible community updates, free training resources, and infrastructure monitoring trends....

Apr 24, 2026 8 min

This Week in IT: Container Security Alerts, Python 3.14 Preview, and DevOps Salary Trends

Week 2 of March 2026 IT news: critical container security advisories, Python 3.14 feature preview, DevOps salary survey results, and open-source project highlights....

Apr 17, 2026 9 min

DNS Resolver Testing with Python: Compare Performance, Test DNSSEC, and Diagnose Issues (Free CLI Tool)

Test DNS resolver performance with a free Python CLI tool. Compare resolver speeds, verify DNSSEC validation, audit resolv.conf, and diagnose DNS resolution issues....

Apr 12, 2026 11 min

NFS Mount Health Monitoring with Python: Detect Stale Mounts, Measure Latency, and Audit Exports (Free CLI Tool)

Monitor NFS mount health with a free Python CLI tool. Detect stale mounts, measure latency, audit NFS exports, and run throughput tests — zero dependencies required....

Apr 12, 2026 11 min

PostgreSQL Health Monitoring with Python: Connections, Bloat, Vacuum, and Locks (Free CLI Tool)

Monitor PostgreSQL server health with Python. dargslan-postgres-health checks connections, table bloat, vacuum status, locks, replication lag, and long-running queries....

Apr 12, 2026 13 min

Redis Health Monitoring with Python: Check Memory, Persistence, and Replication (Free CLI Tool)

Monitor Redis server health with Python. dargslan-redis-health checks memory usage, RDB/AOF persistence, replication status, client connections, and provides alerts for common issues....

Apr 12, 2026 12 min