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Full-Stack DevOps & Kubernetes

Focused on sharing DevOps, Kubernetes, Linux, Docker, Istio, microservices, Spring Cloud, Python, Go, databases, Nginx, Tomcat, cloud computing, and related technologies.

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Latest from Full-Stack DevOps & Kubernetes

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Full-Stack DevOps & Kubernetes

Feb 7, 2022 · Cloud Native

How to Double Nginx‑Ingress Performance in Kubernetes: IPVS, Kernel Tweaks, and Keep‑Alive Optimizations

This guide explains why routing traffic through an Nginx Ingress controller can halve Kubernetes service QPS and provides step‑by‑step instructions—including switching to IPVS, tuning kernel and file‑descriptor limits, and configuring keep‑alive settings—to restore and even exceed the original performance.

Keep-Alivekube-proxynginx-ingress

0 likes · 9 min read

How to Double Nginx‑Ingress Performance in Kubernetes: IPVS, Kernel Tweaks, and Keep‑Alive Optimizations

Full-Stack DevOps & Kubernetes

Jan 28, 2022 · Cloud Native

Switch Kubernetes kube-proxy to IPVS Mode for Faster Service Scaling

This guide explains why IPVS outperforms iptables for large Kubernetes clusters, then walks through installing ipvsadm, loading kernel modules on master and worker nodes, configuring kube-proxy to use IPVS, cleaning iptables rules, and verifying network and DNS functionality with a BusyBox pod.

DevOpsIPVSKubernetes

0 likes · 5 min read

Switch Kubernetes kube-proxy to IPVS Mode for Faster Service Scaling

Full-Stack DevOps & Kubernetes

Jan 18, 2022 · Cloud Native

Understanding Pod Communication and Calico Networking Modes in Kubernetes

This article explains how containers communicate within a pod, between pods, and with services in Kubernetes, and compares Calico's IPIP and BGP networking modes, detailing their traffic handling, suitable scenarios, efficiency, and configuration steps.

BGPCloud NativeIPIP

0 likes · 4 min read

Understanding Pod Communication and Calico Networking Modes in Kubernetes

Full-Stack DevOps & Kubernetes

Jan 4, 2022 · Cloud Native

Managing Multiple Kubernetes Clusters on One Node with kubeconfig

This guide explains how to simulate and maintain two separate Kubernetes clusters on a single node by configuring kubeconfig files, adding clusters, users, and contexts, and switching between them to improve DevOps workflow efficiency.

Cloud NativeDevOpsKubernetes

0 likes · 4 min read

Managing Multiple Kubernetes Clusters on One Node with kubeconfig

Full-Stack DevOps & Kubernetes

Dec 6, 2021 · Cloud Native

How to Implement Canary Releases with Istio: Step‑by‑Step Guide

This guide explains the concept of gray (canary) releases and provides detailed Istio configuration files—including Deployments, Service, Gateway, VirtualService, and DestinationRule—to gradually shift traffic between version 1 and version 2 of a service.

DestinationRuleIstioKubernetes

0 likes · 6 min read

How to Implement Canary Releases with Istio: Step‑by‑Step Guide

Full-Stack DevOps & Kubernetes

Nov 25, 2021 · Cloud Native

Supercharge Jenkins Builds: Tune Pod Resources and Enable Parallel Stages

This guide explains why default Jenkins slave pods often suffer from slow builds or memory shortages, and provides concrete steps—adjusting CPU/memory limits, trimming plugins, using private artifact stores, disabling workspace cleanup, and configuring parallel stages—to dramatically improve Jenkins performance on Kubernetes.

JenkinsKubernetesParallel Stages

0 likes · 4 min read

Supercharge Jenkins Builds: Tune Pod Resources and Enable Parallel Stages

Full-Stack DevOps & Kubernetes

Nov 21, 2021 · Cloud Native

Boost Kubernetes Ingress Performance: Tuning Nginx Keep‑Alive for Double QPS

A Kubernetes‑deployed business app sees its QPS drop from over 100k with a NodePort service to about 50k when exposed via Ingress, but adjusting Nginx keep‑alive parameters in the ingress‑controller can restore and even exceed the original performance while also enabling high availability.

KubernetesPerformancehigh availability

0 likes · 4 min read

Boost Kubernetes Ingress Performance: Tuning Nginx Keep‑Alive for Double QPS

Full-Stack DevOps & Kubernetes

Nov 17, 2021 · Cloud Native

How to Implement Canary Deployments with Ingress‑Nginx Annotations in Kubernetes

This guide shows how to use Ingress‑Nginx annotations to perform canary releases in Kubernetes, covering header‑based, cookie‑based, and weight‑based traffic splitting with complete YAML manifests and curl commands for verification, providing step‑by‑step examples and demonstrating practical testing.

Cookie RoutingHeader RoutingKubernetes

0 likes · 11 min read

How to Implement Canary Deployments with Ingress‑Nginx Annotations in Kubernetes

Full-Stack DevOps & Kubernetes

Nov 15, 2021 · Cloud Native

How to Implement Canary Deployments on Kubernetes: Step‑by‑Step Guide

This article explains the concept of canary releases, outlines their advantages and drawbacks, and provides a detailed, command‑line tutorial for performing a canary deployment, monitoring, pausing, resuming, and rolling back a Kubernetes application using kubectl.

Blue‑GreenDevOpsKubernetes

0 likes · 7 min read

How to Implement Canary Deployments on Kubernetes: Step‑by‑Step Guide

Full-Stack DevOps & Kubernetes

Nov 8, 2021 · Cloud Native

How to Implement Blue‑Green Deployments on Kubernetes Without Downtime

This guide explains the blue‑green deployment concept, outlines its pros and cons, and provides a step‑by‑step Kubernetes tutorial—including image loading, namespace creation, deployment manifests, service configuration, and traffic switching—to achieve zero‑downtime releases.

Blue‑Green deploymentCloud NativeDevOps

0 likes · 8 min read

How to Implement Blue‑Green Deployments on Kubernetes Without Downtime