The operations journey never stops—pursuing excellence endlessly.
This guide explains what Grafana variables are, why they act like a dashboard control knob, and provides step‑by‑step instructions with screenshots and JSON examples for creating data‑source, business‑tag, and JSON‑file variables to build interactive monitoring dashboards.
This guide explains how to install and use the kubectl tail plugin—a krew‑based tool that streams logs from multiple Kubernetes Pods and containers in real time, covering prerequisites, offline manifest download, installation steps, and practical command examples for various selectors.
The article explains the new in‑place pod resizing feature in Kubernetes, detailing its transition from Alpha to Beta, the technical mechanisms, benefits like reduced disruption and better resource utilization, stability improvements, and future integration with vertical pod autoscaling.
Learn how to prevent virtual machine IP changes in KVM by using DHCP static MAC‑IP binding, covering prerequisite network knowledge, commands to view MAC addresses, editing libvirt XML, restarting the network, and verifying that each VM receives a fixed IP address.
This guide shows Kubernetes operators step‑by‑step how to locate the host process ID of a pod and, conversely, how to identify the pod name from a given PID using kubectl and crictl commands, helping troubleshoot resource spikes in complex clusters.
This article walks you through deploying the libvirt‑exporter, registering it with Nacos for service discovery, exposing it to Prometheus, and adding a ready‑made Grafana dashboard, providing a complete monitoring solution for virtualized environments.
This guide walks you through installing Alertmanager via the kube‑prometheus‑stack Helm chart, configuring SMTP proxy and email notifications, customizing alert templates, and upgrading the chart so you can achieve reliable, automated alerting for your Kubernetes clusters.
This article walks through the core code of a Nacos‑Prometheus adapter, explaining how it connects to Nacos, retrieves service and instance data, formats it into Prometheus http_sd JSON, and serves it via an HTTP endpoint, enabling dynamic service discovery for monitoring.
Learn how to replace static Prometheus target files with dynamic service discovery by integrating Alibaba’s open‑source Nacos registry, configuring a Go‑based adapter, adding HTTP‑SD configs to the Prometheus Operator, and validating the automated monitoring of large‑scale microservice deployments.
This guide walks you through deploying kube-state-metrics, configuring Prometheus to collect CPU, memory and other resource metrics per Kubernetes namespace, setting up ResourceQuota and LimitRange visualizations, and verifying data collection with Helm, Docker, and curl commands, enabling comprehensive cluster health monitoring.
