Kun-Hung TsaiAWS Certified Solutions Architect — Professional Certification 準備心得(2024)這個月趁著找新工作的空擋,去考了 AWS Certified Solutions Architect — Professional 的認證,比起 associate 的考試,難度真得提升不少。即使是幾乎全力準備,也讀了將近三週的時間,如果是要邊工作邊準備,痛苦程度可能會三級跳。6 min read·Feb 7, 2024----
Kun-Hung TsaiDomain resolve error (“Name or service not known”) forAzure OpenAI Service domainRecently, our company subscribed to the Azure OpenAI service. According to the official documentation, we were supposed to replace the…3 min read·Aug 3, 2023----
Kun-Hung TsaiAWS Cloudwatch insight query to parse AWS Opensearch search logRecently, I wanted to analyze our OpenSearch cluster using AWS CloudWatch Logs Insights. However, I was unable to find any official…1 min read·May 15, 2023----
Kun-Hung TsaiVault-agent-injector fetches secret twice when using dynamic secret with environment variable on…Recently, I was trying to integrate Hashicorp Vault into our Kubernetes environment. Since our applications use environment variable to…2 min read·Jun 20, 2022----
Kun-Hung TsaiAchieve auto-restart mechanism for Nifi with DockerBackground2 min read·Mar 21, 2022----
Kun-Hung TsaiInstall K8S v1.22.2 on Ubuntu 18.04 with KubeadmHost environment3 min read·Mar 15, 2022----
Kun-Hung TsaiConfigure query base routing in AWS ALB ingress controllerAWS Application Load Balancer provides user with the ability to do advanced request routing using query parameter.1 min read·Mar 14, 2022----
Kun-Hung TsaiUpgrade EKS cluster from v1.18 to v1.19Managing cluster on EKS with managed nodes relieves lots of SRE engineers’ maintenance work when doing K8S version upgrade. However, it…4 min read·Sep 29, 2021----
Kun-Hung TsaiThe connection to the server localhost 8080 was refused — did you specify the right host or port…I was trying to copy a kubectl config from other machine by hand yesterday to set up my new environment. However, I kept getting “The…1 min read·Jul 24, 2021----