Above is my simple version of CICD workflow that I use as a guidance in day to day work. A bit explanations on how to use it. The workflow has six stages and seven scenarios. Six Stages: Commit Change: When user commit changes to code repository. Build Binary: When CI server builds the binary to … Continue reading Simple version of CICD Workflow
I did a quick test of the HPA (Horizontal Pod Autoscaling) on OpenShift, here are some key findings: Heapster metric is not near realtime, it is about 2 minutes delay in my test. HPA only has one threshold to decide when to scale up or scale down. I think it makes sense, as pods normally … Continue reading Horizontal Pod Autoscaling
If you are seeing such error when doing build in OpenShift - 'error: build error: fatal: git fetch-pack: expected shallow list', then you probably have missed the ref in your build configuration, ref can be tag or branch name. spec: triggers: - type: ConfigChange source: type: Git git: uri: 'http://github.com.au/jc1518/dilbert.git' ref: master
I still remember that more than two years ago, I spent a couple of days to setup a Kubernetes cluster in vSphere (refer this article ' Install Kubernetes' that I wrote in 2015). During that time not many people understood what container is not mention Kubertnetes, but nowadays everyone in the industry talks about container and … Continue reading Kubernetes as a Service
There used to be lots of debates on what is the best container orchestration platform? Is it ECS or Mesos or Nomad or swarm or Kubernetes ? With some moves in the industry recently, I think the answer is obvious now - Kubernetes is the winner! What happened in the past a few weeks? Docker announced 'Adding Kubernetes … Continue reading Kubernetes is the winner
Jackie Chen's IT Workshop 