Dong NguyenKarpenter Just-In-Time Nodes Scale for EKSKarpenter is an open-source node provisioning project built for Kubernetes. Adding Karpenter to a Kubernetes cluster can dramatically…6 min read·Mar 8, 2023----
Dong NguyenSetup Jenkins worker node that support building Docker Image.Usually when we setup a Jenkins server, we usually use the master to build jobs. The master node is in charge of scheduling jobs, assigning…5 min read·Mar 8, 2023----
Dong NguyenAccess to Bastion host using AWS SSM.Usually when developer need to access to the bastion host, we will give them the private key or they give us the public key then we will…4 min read·Mar 8, 2023----
Dong NguyenGrant access to EKS cluster for Bastion Host.When you create an Amazon EKS cluster, the AWS Identity and Access Management (IAM) entity user or role, such as a federated user that…4 min read·Mar 8, 2023----
Dong NguyenSetup GitHub Action Runner on K8S.In this post, i will guide you to install self-hosted github action runner, then setup a simple workflow to run some command on that…4 min read·Feb 8, 2023----
Dong NguyenSync Secret from Vault to K8S using External Secrets OperatorWhen doing work on many micro services, i have to find a way to manage environment variable for them, previously i used AWS Secret Manager…6 min read·Jan 10, 2023----
Dong NguyenGet a free TLS certificate with acme.shWhen i’m using Azure Cloud, they do not provide a free certificate that can be used with their service, unlike AWS, so we need to find a…6 min read·Dec 23, 2022----
Dong NguyenSelf-managed K8S cluster for development environment using AWS EC2Use Amazon Elastic Kubernetes Service for development environment is not a good choice if the customer or we have not enough credit. The…11 min read·Nov 28, 2022----
Dong NguyenCreate a Kafka cluster for development with Docker ComposeThis article assume that you have basic knowledge about Kafka, and Docker Compose, for development environment, there is no strict…7 min read·Nov 15, 2022--1--1
Dong NguyenHow to grant enough permission for developer on Bastion HostIn production environment, the access is private by default, developer usually have not permission to access to the database, search…4 min read·Nov 13, 2022----