@ahmetcantryk
8 min read
GitOps Explained: Principles and Tools
What is GitOps? A practitioner's deep dive into the four OpenGitOps principles, the reconciliation loop, and 2026 tooling: Argo CD 3.4, Flux 2.8, and where each fits.
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What is GitOps? A practitioner's deep dive into the four OpenGitOps principles, the reconciliation loop, and 2026 tooling: Argo CD 3.4, Flux 2.8, and where each fits.
What is platform engineering? A 2026 deep dive into internal developer platforms, golden paths, platform-as-product, and how it differs from DevOps and SRE.
Build a CI/CD pipeline from scratch in 2026: stages, a working GitHub Actions config on Node 24, testing gates, deployment, and the failures to avoid.
The 10 Kubernetes mistakes we still see wreck production clusters in 2026, from missing resource requests to plaintext secrets, each with the exact manifest that fixes it.
A 2026 FinOps playbook to reduce cloud costs: tag everything, kill idle resources, right-size, commit to savings plans, and govern fast-growing GPU spend.
Ten field-tested Kubernetes cost optimization tactics for 2026: in-place VPA resize, spot nodes, Karpenter 1.13, HPA, bin packing, and idle cleanup with real commands.
Terraform vs Pulumi in mid-2026: how HCL and real languages actually differ on state, testing, licensing, and team fit — with current versions, code, and a decision guide.
What is observability? A practical guide to the three pillars of logs, metrics, and traces, how it differs from monitoring, and how to build it with OpenTelemetry in 2026.
A practitioner's guide to zero downtime deployment in 2026: blue-green vs canary vs rolling, health checks, connection draining, and safe database migrations.