TL;DR 我在 Amazon Web Services（AWS）擔任雲端技術支援工程師六年，從 Cloud Support Associate 一路成長為容器服務的 Subject Matter Expert，期間支援來自全球的企業級客戶。這段旅程讓我學到紮實的 Linux、網路與容器相關技術能力，以及以客戶影響為優先、快速解決問題的有效問題排查方法論。 在 Amazon，我的重要收穫...

TL;DR I spent six years at Amazon Web Services (AWS) as a Cloud Support Engineer, advancing from an associate role to a subject matter expert in container services while supporting enterprise cust...

Introduction Monitoring Amazon ECS tasks and containers is critical for diagnosing performance bottlenecks, optimizing resource usage, and ensuring application reliability. Common methods, like de...

Introduction Deploying applications using the AWS Cloud Development Kit (CDK) provides a way to provision and manage cloud infrastructure as code. However, occasionally users may encounter errors ...

Introduction According to the Kubernetes documents, when a container in a pod consumes more memory than its limit, the pod is killed. A Pod killed by OOM (OOMKilled Pod) will be restarted if the r...

Introduction When deploying application on Kubernetes cluster, people may use NodePort service to make their application accessible. Encountering the error message failed to allocate a nodePort: r...

Introduction Depending on the use case, sometimes people would use hostPath to mount a file or directory from the host node’s filesystem into their Pods.1 An interesting observation is that when a...

Introduction Sometimes when containers running from the same image show different starting time in different Kubernetes cluster, we would normally first compare the different resources in the clus...

Introduction Sometimes you may wonder which process is responsible for sending the DNS request on your servers. While capturing DNS packets with tcpdump is possible, identifying the process ID(PID...

Introduction Amazon ECS has being supporting Amazon Elastic File System(EFS) over the years.1 AWS provides resources including tutorials and several Knowledge Center articles and video2 to guide c...