https://duyne.me/ Posts by Do Van Duy on AWS, Kubernetes, Terraform, and GitOps. en Do Van Duy Thu, 27 Aug 2026 14:25:29 GMT https://duyne.me/blog/auto-pull-request-when-using-fluxcd-on-bitbucket https://duyne.me/blog/auto-pull-request-when-using-fluxcd-on-bitbucket Wed, 01 Apr 2026 00:00:00 GMT Auto-create a Pull Request when FluxCD updates an image (Bitbucket Pipelines) https://duyne.me/blog/running-2025 https://duyne.me/blog/running-2025 Tue, 30 Dec 2025 00:00:00 GMT A Year Without a Finish Line, But Full of Lessons https://duyne.me/blog/eks-nodelocal-dnscache https://duyne.me/blog/eks-nodelocal-dnscache Thu, 18 Dec 2025 00:00:00 GMT NodeLocal DNSCache improves Cluster DNS performance by running a DNS caching agent on cluster nodes as a DaemonSet. https://duyne.me/blog/aws-iam-role-to-role-assumerole https://duyne.me/blog/aws-iam-role-to-role-assumerole Mon, 27 Oct 2025 00:00:00 GMT A comprehensive guide on configuring IAM roles to assume other IAM roles, covering both same-account and cross-account scenarios. https://duyne.me/blog/eks-module-v20-to-v21 https://duyne.me/blog/eks-module-v20-to-v21 Mon, 20 Oct 2025 00:00:00 GMT This document provides a guide on how to upgrade the EKS Terraform module from v20.37.2 to v21.9.0. https://duyne.me/blog/ec2-node-exporter https://duyne.me/blog/ec2-node-exporter Mon, 01 Sep 2025 00:00:00 GMT How to install Node Exporter on a standalone EC2 instance and configure VictoriaMetrics scraping. https://duyne.me/blog/kubernetes-1-33-octarine https://duyne.me/blog/kubernetes-1-33-octarine Thu, 24 Apr 2025 00:00:00 GMT Stay tuned for more Kubernetes updates and best practices! Kubernetes 1.33 "Octarine" has arrived, bringing exciting enhancements to improve performance,… https://duyne.me/blog/fixing-git-commit https://duyne.me/blog/fixing-git-commit Tue, 25 Mar 2025 00:00:00 GMT Overview When I started working at my current company, I was given a company email and GitHub account. However, one day I accidentally committed and… https://duyne.me/blog/s3-native-state-locking-terraform https://duyne.me/blog/s3-native-state-locking-terraform Mon, 17 Mar 2025 00:00:00 GMT Overview Starting from Terraform 1.10.0, you can now manage state file (.tfstate) locking using only an S3 bucket as your backend storage, without… https://duyne.me/blog/ingress-nginx-controller-nlb https://duyne.me/blog/ingress-nginx-controller-nlb Tue, 11 Mar 2025 00:00:00 GMT Overview This guide demonstrates how to configure network architecture using ingress-nginx controller in combination with Internal Network Load Balancer… https://duyne.me/blog/terraform-aws-sso-setup https://duyne.me/blog/terraform-aws-sso-setup Mon, 17 Feb 2025 00:00:00 GMT Small world. Big idea! Overview This guide explains how to set up and use Terraform with AWS IAM Identity Center (SSO). It demonstrates how to configure… https://duyne.me/blog/goodbye-2024-what-i-learned-in-2024 https://duyne.me/blog/goodbye-2024-what-i-learned-in-2024 Sun, 29 Dec 2024 00:00:00 GMT Welcome 2025! As 2024 comes to a close, it's time to reflect on the amazing experiences and accomplishments of the past year. Love: First and foremost, I… https://duyne.me/blog/enforcing-rbac-on-kubernetes https://duyne.me/blog/enforcing-rbac-on-kubernetes Fri, 17 May 2024 00:00:00 GMT Small world. Big idea! Control your role! For example, you might want to restrict access to production systems to a handful of individuals. Or you might… https://duyne.me/blog/gcp-resources-naming-convention https://duyne.me/blog/gcp-resources-naming-convention Sun, 28 Jan 2024 00:00:00 GMT Small world. Big idea! Consistent naming strategy is important and should be an essential part my working. It is often overlooked at the beginning of a… https://duyne.me/blog/goodbye-2023-may-2024-be-fabulous https://duyne.me/blog/goodbye-2023-may-2024-be-fabulous Mon, 01 Jan 2024 00:00:00 GMT Welcome 2024! On Going :computer: Learning Go Achievements: :runner: Finisher half marathon :runner: Running 1000km(include trail,hiking) :airplane: Ha… https://duyne.me/blog/ssh-tunnels https://duyne.me/blog/ssh-tunnels Tue, 26 Dec 2023 00:00:00 GMT Small world. Big idea! Port forwarding Forwards a port from one system (local or remote) to another Local port forwarding Local port forwarding allows you… https://duyne.me/blog/kubernetes-deprecated-apis https://duyne.me/blog/kubernetes-deprecated-apis Tue, 31 Oct 2023 00:00:00 GMT Small world. Big idea! API deprecation - what is that? As Kubernetes feature set evolves, APIs have to evolve too in order to support this change. There… https://duyne.me/blog/favourite-quotes https://duyne.me/blog/favourite-quotes Fri, 22 Sep 2023 00:00:00 GMT Small world. Big idea! Quotes Favourite https://duyne.me/blog/tweet-two-hard-things https://duyne.me/blog/tweet-two-hard-things Sat, 01 Jul 2023 00:00:00 GMT Small world. Big idea! TwoHardThings https://duyne.me/blog/tip-fix-sed-i-issue-On-mac-os https://duyne.me/blog/tip-fix-sed-i-issue-On-mac-os Tue, 27 Jun 2023 00:00:00 GMT Small world. Big idea! The Problem When I working with sed to write a file script for work. I get an error when I use sed -i to replace a word in a script… https://duyne.me/blog/tip-managing-multiple-github-gccounts-with-ssh-keys https://duyne.me/blog/tip-managing-multiple-github-gccounts-with-ssh-keys Tue, 23 May 2023 00:00:00 GMT Small world. Big idea! Problem I have two Github accounts: duyhenryer (personal) and duydo (for work). I want to use both accounts on same computer… https://duyne.me/blog/tip-a-command-to-estimate-kafka-topic-disk-usage https://duyne.me/blog/tip-a-command-to-estimate-kafka-topic-disk-usage Wed, 03 May 2023 00:00:00 GMT A small tip If you're using Kafka to manage your data, it's important to keep track of the disk usage of your topics to ensure that you have enough… https://duyne.me/blog/end-of-q1 https://duyne.me/blog/end-of-q1 Fri, 31 Mar 2023 00:00:00 GMT Today I see my eyes crying like that. After the new year ended, everyone went back to work, and so did my team. We all have an advance plan for what to do… https://duyne.me/blog/documents-documents-everywhere https://duyne.me/blog/documents-documents-everywhere Wed, 22 Mar 2023 00:00:00 GMT How will we create effective documents that will improve and not harm it? I often review the documents when working because when I review them and… https://duyne.me/blog/why-i-create-a-new-blog https://duyne.me/blog/why-i-create-a-new-blog Thu, 05 Jan 2023 00:00:00 GMT New home, new start. My old blog build by Wordpress. It has been 6 years with no post. It's very bad. I started blogging when I was in my 2nd year at a… https://duyne.me/blog/2022-stories https://duyne.me/blog/2022-stories Sat, 31 Dec 2022 00:00:00 GMT A new year has come. I want to sit down and write some happened last year. General. I want to write something and publish it. Just to feel that happy. In… https://duyne.me/blog/hello-world https://duyne.me/blog/hello-world Thu, 22 Dec 2022 00:00:00 GMT