Finally finally, EKS is now generally available. It took roughly half year to arrive here since the announcement in last ReInvent. If you ever used kops before, then you will feel that the way how they build k8s cluster is very similar. Except that AWS manages the master nodes for you. I had quick look … Continue reading EKS is now generally available
I was working on a project called SpotOn last year. The basically idea is to use Spot fleet whenever possible. If the pool size is lower than the threshold, then CloudWatch will trigger a Lambda function to scale up the on-demand EC2 to pick up the workloads. Check this out if you want to know … Continue reading EC2 fleet at first glance
Have you read my previous post Install Kubernetes on AWS with kops? If yes, then kube-aws is an alternative to kops. If you have not, then kube-aws is an open source tool that simplifies the installation of Kubernetes on AWS. I have not tried kube-aws yet, but I will when I need to build another … Continue reading What is kube-aws?
Atlassian recently open sourced its in-house auto-scaling tool for Kubernetes - Escalator. I have not gotten a chance to try it yet, but according to this article, the tools is initially designed for the batch workloads which can not tolerate scaling-up delay. The idea behind it is to allow user to set up the percentage … Continue reading Escalator – auto-scaling tool for Kubernetes
Helm is the package manager for Kubernetes, you can think it as yum/apt/homebrew. It contains two parts: Server (tiller) and Client (helm). helm client can be installed on Linux/Mac/Windows, the package can be found here. Helm manages the Kubernetes charts which are pre-configured Kubernetes resources. In the following example, I will show you how to … Continue reading Use helm in Kubernetes
Before introducing how to use AWS EFS for Kubernetes, let me recap some terms of Persistent Volumes. PV (Persistent Volume): PV is a piece of storage, it can be NFS, iSCSI, EBS, EFS... The purpose of having PV is to decouple the storage from pod's lifecycle. PVC (Persistent Volume Claim): PVC provides the method for … Continue reading Use AWS EFS for Kubernetes
Simply speaking ingress is a collection of routing rules, and ingress controller is the component that implements those rules in Kubernetes cluster. It is not available in any Kubernetes releases prior to 1.1. I guess it is the reason that why OpenShift developed Router. This is a not so nice diagram, but I think it … Continue reading Understanding Ingress in Kubernetes