Readiness probes help Kubernetes determine when a container is ready to start accepting traffic.

Ensure each container has a configured readiness probe Perform the upgrade using the helm upgrade command mentioned in the “Upgrading Chart” section. Review the release notes for any breaking changes or required manual actions when upgrading to a new major version of the Kube-Prometheus-Stack Helm chart. Upgrading an existing Release to a new major version Monitor and audit: Monitor your cluster for suspicious activity and perform regular audits to ensure compliance with security policies.

Use network policies: Implement network policies to isolate and secure communication between pods.

Limit the scope of RBAC permissions: Restrict access to ConfigMaps and avoid granting users or service accounts unnecessary privileges. To mitigate the security vulnerability CVE-2021-25742, which affects ConfigMap usage in Kubernetes, follow these best practices: Prevent ConfigMap security vulnerability (CVE-2021-25742) Replace with the desired value, such as 256Mi for 256 MB of memory. Set memory requests in the resources section of the container specification: resources: requests: memory: Ensure each container has a configured memory requestĬonfiguring memory requests helps Kubernetes efficiently schedule and allocate resources for your workloads. Replace with the name of your release and with the namespace in which the release is deployed. To upgrade the Kube-Prometheus-Stack Helm chart to the latest version, use the following command: helm upgrade prometheus-community/kube-prometheus-stack -n Replace with the desired value, such as 500m for 0.5 CPU cores. You can configure CPU limits in the resources section of the container specification in your Kubernetes deployment: resources: limits: cpu: It is crucial to set CPU limits for each container to prevent resource contention and ensure optimal cluster performance. Ensure each container has a configured CPU limit You can also set up custom dashboards tailored to your specific needs. Helm history command and keeping up with the versions installed and updated.Īfter deploying the Kube-Prometheus-Stack, you can access the Grafana UI to explore and analyze your cluster’s performance metrics. You can track major chart version change using the: This allows companies that depend on Prometheus to limit the risks associated with upgrading while still being able to rely on a community-maintained Prometheus server. The build toolchain is also kept up-to-date. Prometheus LTS releases, on the other hand, receive bug, security, and documentation fixes for a period of one year. However, there is always a risk that new features and enhancements could lead to regressions, which may require another upgrade. Upgrading Prometheus is typically straightforward due to the API stability guarantees in place. If a user encounters a bug in a minor release, they typically need to upgrade to the latest Prometheus release. After this period, minor releases generally no longer receive bug fixes. Prometheus LTS refers to specific releases of Prometheus that receive bug fixes for an extended period, providing long-term support.Įvery six weeks, a new cycle of minor Prometheus releases begins.

Kubernetes node exporter prometheus