Persistent Storage & Metric Retention in Kube-Prometheus-Stack (2026)
Configure persistent volumes for Prometheus and Grafana in kube-prometheus-stack, tune retention size versus retention time, and reuse an existing PVC safely.
Read Article Topic
Running Kube-Prometheus-Stack in Production
The default values.yaml gets kube-prometheus-stack running, but it is not a production configuration on its own. Persistent volumes, resource requests and limits, multiple Prometheus replicas for high availability, and a tested upgrade process all need to be in place before this stack is monitoring anything that matters.
This category brings together production-readiness guidance: configuring durable storage so metrics and dashboards survive pod restarts, running Prometheus and Alertmanager with pod anti-affinity across failure domains, and safely upgrading the chart without losing historical data or alert configuration.
How to Upgrade Kube-Prometheus-Stack: Versions, CRDs, and Release Notes (2026)
A safe, step-by-step process for upgrading kube-prometheus-stack — checking versions, updating CRDs before Helm does, and reading release notes without breaking your cluster.
Read ArticleKube-Prometheus-Stack with Thanos: Long-Term Metric Storage and Multi-Cluster Monitoring (2026)
Integrate Thanos with kube-prometheus-stack for unlimited metric retention and multi-cluster Kubernetes monitoring. Complete setup guide with S3, GCS, and production architecture.
Read ArticleFrequently Asked Questions
Is the default kube-prometheus-stack install production-ready?
Not quite — persistent storage, resource limits, and Alertmanager routing to a real notification channel all need to be configured first; the defaults are tuned for fast setup, not production safety.
How many Prometheus replicas should run in production?
At least two, with pod anti-affinity across nodes, for high availability — a single replica means a node failure takes monitoring down along with whatever it was watching.