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DevOps & observability · #kubernetes
K3s ships with an embedded SQLite database that removes the need for an external etcd, but the single‑writer lock and lack of replication limit its use to single‑node or low‑write workloads.
Learn how to use Helm's test hook to run validation jobs after a chart install, write test templates, interpret results, and understand the limitations.
Talos has no SSH and a read-only root filesystem, so every node change goes through one YAML machine config over a gRPC API. This guide covers the safe apply-and-verify cycle, plus recovery when a change locks you out.
Avoid configuration drift in Gardener by moving from repetitive Shoot manifests to a centralized, template-driven deployment pattern using external configuration management.
Separate liveness and readiness signals in .NET Core using tagged health checks to prevent unnecessary container restarts during downstream outages.
Helm post-renderers let you rewrite any chart's fully rendered manifests with an external tool — no forking, no webhooks. Here's how the feature works, a working yq example, and the trade-offs.
Decide between Cluster API (CAPI) and Imported clusters in Rancher. Learn when to prioritize full infrastructure lifecycle automation versus a lightweight management overlay.
Stop managing static log paths in Kubernetes. Learn how to use Filebeat Autodiscover and pod hints to dynamically collect and format logs based on application needs.
Learn how to add a lightweight Dropwizard HealthCheck to monitor DB connectivity and expose it via the admin port for Kubernetes probes.
k3s
sqlite
helm
talos
gardener
rancher
beats
dropwizard