kubernetes Archives

Kubernetes Smart Alerting: Using Robusta to Automate Diagnostics and Slash MTTR

July 21, 2026

Slash your Kubernetes MTTR by automating alert enrichment. This guide explains how to use Robusta to turn vague notifications into diagnostic reports with logs and one-click remediation.

DevOps

Kube-green: Automatically Suspend Kubernetes Workloads After Hours to Cut Dev/Staging Cloud Costs

July 20, 2026

After watching a $847/month dev cluster bill for workloads idle 65% of the time, I set up kube-green — a Kubernetes operator that suspends Deployments and StatefulSets outside working hours. Six months later, monthly costs dropped to $290 with zero operational issues.

DevOps

Kubeshark Tutorial: Real-time Kubernetes API Traffic Analysis and Microservices Debugging

July 18, 2026

Struggling with Kubernetes network errors? Learn how to use Kubeshark for agentless, real-time API traffic analysis and gRPC debugging.

DevOps

Deploying KubeVela on Kubernetes: Modern Application Delivery with Open Application Model (OAM)

July 17, 2026

After a painful 2 AM production incident caused by environment drift between staging and production Kubernetes clusters, I adopted KubeVela with the Open Application Model (OAM) to define applications once and deploy them consistently everywhere. This guide covers installation, OAM-based configuration with multi-environment policies and approval gates, and monitoring your deployments with CLI commands and Prometheus metrics.

DevOps

Argo CD ApplicationSet: Automate Multi-Cluster Kubernetes App Deployments at Scale

July 14, 2026

Argo CD ApplicationSet solves the multi-cluster app management problem by automatically generating Application resources from generators — turning hundreds of manual manifests into a single declarative spec. This guide walks through installation, List/Git/Matrix generator configuration, and monitoring your generated applications at scale.

DevOps

K9s Tutorial: Manage and Monitor Your Kubernetes Cluster Like a Pro from the Terminal

July 14, 2026

K9s is a terminal-based UI that transforms how you interact with Kubernetes clusters — real-time resource views, one-key log access, inline editing, and instant pod exec, all from your terminal. This guide covers installation, core navigation, and real debugging workflows to help you move faster in production.

DevOps

ExternalDNS on Kubernetes: Automatically Sync DNS Records to Cloudflare and Route53

July 13, 2026

Manually updating DNS records every time you deploy a Kubernetes service does not scale. ExternalDNS watches your Ingress and LoadBalancer resources and automatically keeps Cloudflare or Route53 in sync — no human intervention needed. This guide walks through installation, configuration for both providers, and how to verify and monitor the setup in production.

DevOps

Managing Kubernetes Cluster Lifecycle Across Environments with Cluster API (CAPI)

July 6, 2026

Cluster API (CAPI) lets you manage the full lifecycle of Kubernetes clusters — creation, upgrades, and deletion — using declarative YAML and GitOps workflows across AWS, GCP, and bare-metal. This guide walks a junior DevOps engineer through setting up a management cluster, provisioning workload clusters, and performing rolling version upgrades without manual SSH or cloud console access.

DevOps

Kubernetes Cost Monitoring with OpenCost: A Practical FinOps Guide for Cloud-Native Teams

June 23, 2026

OpenCost is a free, open-source CNCF tool that shows you exactly what each namespace and workload costs in your Kubernetes cluster — no vendor lock-in, no data leaving your infrastructure. This guide covers Helm installation, Prometheus integration, Grafana dashboards, and hands-on tips from real production use that help you find and cut cost waste fast.