Podman vs Docker (2026): Rootless, Daemonless & Compose Tested
Podman vs Docker in 2026: rootless and daemonless architecture, pods, systemd/Quadlet, compose compatibility, security and CI. A practical decision guide.
Kubernetes Secrets Management with External Secrets Operator (2026)
Kubernetes secrets management done right: External Secrets Operator vs the Secrets Store CSI Driver, Vault and cloud secret managers, rotation, sync patterns and failure modes.
Kafka KRaft in Production: Migrating Off ZooKeeper — A Hands-On Guide (2026)
A hands-on Kafka KRaft tutorial: the metadata quorum, migrating a ZooKeeper cluster to KRaft, controller sizing, rollback, and operating KRaft in production in 2026.
Grafana Alloy: An OpenTelemetry Collector Tutorial
A 2026 Grafana Alloy tutorial: build an OpenTelemetry collector pipeline for metrics, logs, and traces, with working config, components, and deployment tips.
OpenBao Secrets Management: A Production Tutorial (2026)
A 2026 production tutorial for OpenBao secrets management: sealing, auth methods, dynamic secrets, Kubernetes injection, and high-availability deployment.
Edge Observability ADR: OpenTelemetry vs Prometheus+Loki
An ADR-style 2026 decision on edge-fleet observability: OpenTelemetry vs Prometheus+Loki, collector topology, cost at the edge, and the consequences of each.
KubeEdge vs K3s vs MicroK8s: Edge Kubernetes (2026)
A 2026 deep-dive comparing KubeEdge, K3s, and MicroK8s for edge Kubernetes: architecture, offline autonomy, footprint, and a production setup walkthrough.
Argo Rollouts: Progressive Delivery for Edge Fleets
A 2026 tutorial on Argo Rollouts for edge fleets — canary and blue-green strategies, analysis templates, metric gates, and rollback for constrained sites.
Kubernetes vs Nomad for Edge Workloads: Decision Matrix (2026)
Kubernetes vs Nomad for edge workloads — weighted decision matrix across footprint, scheduling, multi-cloud, ecosystem, and operational realities.
OpenTofu in Production: Migrating from Terraform (2026)
Migrate from Terraform to OpenTofu in production — drop-in compatibility, state encryption, CI changes, and a safe step-by-step cutover plan.