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Category: Kubernetes

[Rancher/EKS] Rancher from v2.12.x can not work on eks cluster.

Posted on April 15, 2026April 15, 2026 By nim No Comments on [Rancher/EKS] Rancher from v2.12.x can not work on eks cluster.
[Rancher/EKS] Rancher from v2.12.x can not work on eks cluster.

Rancher v2.12 giới thiệu một endpoint /ext mới được phục vụ thông qua một Extension API Server nội bộ, chỉ lắng nghe trên localhost:6666 trên cụm quản lý/cục bộ. Cổng này được chọn để phù hợp với Imperative API RFC được định nghĩa bởi nhóm kỹ thuật Rancher. Nó được đăng ký trong Kubernetes như…

Read More “[Rancher/EKS] Rancher from v2.12.x can not work on eks cluster.” »

Kubernetes

Tutorial: Gateway API + Traefik + oauth2-proxy (Microsoft Entra ID)

Posted on March 30, 2026April 1, 2026 By nim No Comments on Tutorial: Gateway API + Traefik + oauth2-proxy (Microsoft Entra ID)
Tutorial: Gateway API + Traefik + oauth2-proxy (Microsoft Entra ID)

This is a practical setup guide to protect an app behind Traefik Gateway API using oauth2-proxy withMicrosoft (Entra ID / Azure AD) login. 1) Target Architecture • gateway-api namespace: Traefik Gateway• oauth2-proxy namespace: oauth2-proxy deployment/service• your-app namespace: your app service + auth middleware + app route• Same hostname for app + oauth callbacks, for example:•…

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Gateway API

Compare Instance mode (NodePort) và IP mode (Pod IP) in EKS Application Load Balancer (ALB)

Posted on March 14, 2026March 20, 2026 By nim No Comments on Compare Instance mode (NodePort) và IP mode (Pod IP) in EKS Application Load Balancer (ALB)
Compare Instance mode (NodePort) và IP mode (Pod IP) in EKS Application Load Balancer (ALB)

Trong môi trường Amazon EKS (Elastic Kubernetes Service) kết hợp với AWS Load Balancer Controller, Ingress có hai chế độ (mode) chính để định tuyến (route) traffic từ Application Load Balancer (ALB) vào trong cluster: Instance mode (NodePort) và IP mode (Pod IP). Dưới đây là so sánh chi tiết giữa hai cách tiếp cận…

Read More “Compare Instance mode (NodePort) và IP mode (Pod IP) in EKS Application Load Balancer (ALB)” »

AWS - Amazon Web Service, Kubernetes

[Gateway API] Migrate from NGINX Ingress to Gateway API

Posted on February 13, 2026March 4, 2026 By nim No Comments on [Gateway API] Migrate from NGINX Ingress to Gateway API
[Gateway API] Migrate from NGINX Ingress to Gateway API

Bối cảnh: NGINX Ingress Controller sẽ ngừng hỗ trợ (End-of-Life) vào tháng 3/2026. Hướng dẫn này sử dụng Traefik làm Gateway Controller ví dụ để thay thế. Giai đoạn 1: Khảo sát & Chuẩn bị (Audit) Trước khi cài đặt cái mới, bạn phải hiểu rõ cái cũ đang chạy như thế nào. Bước 1:…

Read More “[Gateway API] Migrate from NGINX Ingress to Gateway API” »

Kubernetes

[kubewatch] Track all changes to Kubernetes Resource.

Posted on January 5, 2026January 7, 2026 By nim No Comments on [kubewatch] Track all changes to Kubernetes Resource.

Làm thể nào để chúng ta kiểm tra hay các nhận thông báo nếu ai đó change secret trên K8S không? Đâu tiên chúng ta tìm hiểu kubewatch https://github.com/robusta-dev/kubewatch/tree/master repo: https://robusta-charts.storage.googleapis.comChart: kubewatch:3.5.0 Helm value: Cấu hình này yêu cầu Kubewatch chỉ giám sát các thay đổi liên quan đến Secret nằm trong namespace mdaas-engines-dev và gửi thông báo về Microsoft…

Read More “[kubewatch] Track all changes to Kubernetes Resource.” »

Kubernetes, Kubernetes & Container

[K8S] Windows pod disk size is insufficient.

Posted on November 20, 2025November 20, 2025 By nim No Comments on [K8S] Windows pod disk size is insufficient.
[K8S] Windows pod disk size is insufficient.

Nguyên nhân khiến pod Windows của bạn báo cáo kích thước ổ đĩa nhỏ (thường là 20GB) bất kể kích thước ổ đĩa thực tế của nút—là do cách Windows xử lý hệ thống tệp vùng chứa The Key Difference Feature Linux Pods Windows Pods Root Filesystem OverlayFS (Shared) Virtual Disk (Isolated) Disk Visibility Usually…

Read More “[K8S] Windows pod disk size is insufficient.” »

AWS - Amazon Web Service, Kubernetes, Pod

[Ingress-Nginx] How to configure basic authentication for a website using Ingress Nginx.

Posted on August 11, 2025January 21, 2026 By nim No Comments on [Ingress-Nginx] How to configure basic authentication for a website using Ingress Nginx.
[Ingress-Nginx] How to configure basic authentication for a website using Ingress Nginx.

Nếu website của bạn đang public ra internet và bạn cần tạo cho nó 1 password đơn giản và không cần edit Fontend thì có thể làm cách sau: Bạn dùng câu lệnh này để tạo ra 1 file auth: Sau khi bạn gõ xong nó sẽ tạo ra 1 file auth: Khúc này khá…

Read More “[Ingress-Nginx] How to configure basic authentication for a website using Ingress Nginx.” »

Ingress

Deploying Web-Based File Managers: File Browser and KubeFileBrowser with Docker and Kubernetes

Posted on June 3, 2025June 3, 2025 By nim No Comments on Deploying Web-Based File Managers: File Browser and KubeFileBrowser with Docker and Kubernetes
Deploying Web-Based File Managers: File Browser and KubeFileBrowser with Docker and Kubernetes

1. File Browser 2. KubeFileBrowser

Docker, Kubernetes

[K8s/ActiveMQ] Install ActiveMQ in K8s

Posted on March 26, 2025March 26, 2025 By nim No Comments on [K8s/ActiveMQ] Install ActiveMQ in K8s
[K8s/ActiveMQ] Install ActiveMQ in K8s

Install ActiveMQ Artemis on Kubernetes. Bạn tham khảo helm chart sau:https://artifacthub.io/packages/helm/activemq-helm-chart/active-mq Add repository Install chart Edit Heap Size in ActiveMQ Container https://activemq.apache.org/components/artemis/documentation/latest/perf-tuning.html?q=#tuning-the-vm When Artemis is under heavy load, it creates and destroys many objects quickly. Without enough memory, this leads to frequent garbage collection, causing pauses and performance degradation. Proper memory settings ensure smooth operation even during peak loads….

Read More “[K8s/ActiveMQ] Install ActiveMQ in K8s” »

Kubernetes

EKS Crossplane

Posted on March 10, 2025March 10, 2025 By nim No Comments on EKS Crossplane
EKS Crossplane

Creator: https://github.com/trungvo11 Crossplane is an open-source project in the Cloud Native Computing Foundation (CNCF) that transforms your Kubernetes cluster into a universal control plane. It enables platform teams to assemble infrastructure from multiple vendors and expose higher-level self-service APIs for application teams to consume, without writing any code. Crossplane extends your Kubernetes cluster to support…

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AWS - Amazon Web Service, Kubernetes

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  • Tutorial: Gateway API + Traefik + oauth2-proxy (Microsoft Entra ID) March 30, 2026
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