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DevOps & observability · #kubernetes
Implement a minimal, secure health‑check endpoint in ASP.NET Core microservices. Learn the smallest architecture, protect the endpoint, differentiate liveness and readiness, and know when to redesign.
ClusterClass lets you define a single, immutable cluster template in Gardener, enforcing governance and reducing drift. Learn how to create, validate, and instantiate a ClusterClass with a concrete example and trade‑offs.
Learn how Helm 3's three-way strategic merge prevents the loss of manual cluster changes during upgrades by comparing live state, old manifests, and new charts.
A diagnostic guide to resolving Kubernetes CrashLoopBackOff errors, covering OOMKilled events, liveness probe failures, and log retrieval strategies.
Use minAvailable or maxUnavailable to protect replicated workloads during node drains and cluster maintenance.
Stop facing 'no matches for kind' errors in Helm. Learn how to use the crds/ directory and pre-install hooks to ensure Custom Resource Definitions are ready before your app deploys.
Learn when and how to use Helm Chart Hooks safely, what permissions they need, how to verify success, and which design changes would alter their behavior.
Guide to choosing between SQLite, etcd, and external SQL for K3s. Compare quorum requirements, failure domains, and implementation steps for high-availability state management.
Guide to selecting the right Dynatrace OneAgent mode on Kubernetes: full‑stack DaemonSet, application‑only injection, or infrastructure‑only, with a comparison table, trade‑offs, and a step‑by‑step full‑stack deployment example.
gardener
helm
k3s
dynatrace