Kubernetes introduction workshop

Before we begin, please prepare your workstation:

1. Open https://github.com/cbalan/k101
2. Open https://www.katacoda.com/courses/kubernetes/playground and click "Start Scenario".
3. On the master node, clone this repository. All code samples paths are relative to this repository root.

git clone https://github.com/cbalan/k101 && cd k101

4. Confirm that the cluster is ready using the following command:

kubectl cluster-info

At any moment during the workshop, if you have any questions, please let the organizers know.

Agenda

• Kubernetes overview
• Deep dive into
  • Pods
  • Deployments
  • Services
• From Git to Kubernetes exercise

Workstation setup

All samples assume that the audience already has access to a kubernetes cluster.

To keep things simple, the following browser based Katacoda playground can be used: https://www.katacoda.com/courses/kubernetes/playground

Alternatively, the following tools can be used:

• Git
• Your favorite text editor
• Docker: https://www.docker.com
• Kind-0.7.0: https://kind.sigs.k8s.io/docs/user/quick-start
• Kubectl-1.17.0: https://kubernetes.io/docs/tasks/tools/install-kubectl

Terminology

Some of these may or may not be obvious:

• manifests - All Kubernetes api objects are defined via YAML format
• k8s, kube - shortcuts, references to the Kubernetes project
• kube control, kube C T L, "kube cuddle" - reference to kubectl command line
• SIG - Special Interest Group. Kubernetes SIG list available here: https://github.com/kubernetes/community/blob/master/sig-list.md

I'm done! What's next?

This workshop is barely scratching the surface. Please refer to https://kubernetes.io/docs/concepts/ for advanced topics like security, storage, networking and cluster administration.

Check out how other projects are deployed on Kubernetes via helm charts. https://github.com/helm/charts/tree/master/stable/

Probably check out first what helm is at https://helm.sh/

Check out https://landscape.cncf.io/

Check out https://operatorhub.io/

Learn how to use managed Kubernetes powered by a cloud provider:

• GKE - https://cloud.google.com/kubernetes-engine/docs/quickstart
• EKS - https://docs.aws.amazon.com/eks/latest/userguide/getting-started.html
• AKS - https://docs.microsoft.com/en-us/azure/aks/kubernetes-walkthrough
• https://www.digitalocean.com/resources/kubernetes/
• google for others :)

Or build a Kubernetes cluster from scratch: https://github.com/kelseyhightower/kubernetes-the-hard-way

Resources

• https://12factor.net/
• https://kubernetes.io/docs/tutorials/
• https://github.com/microservices-demo/microservices-demo
• https://www.katacoda.com/courses/kubernetes
• https://www.oreilly.com/library/view/kubernetes-up-and/9781491935668/
• https://www.oreilly.com/library/view/kubernetes-patterns/9781492050278/
• https://www.manning.com/books/kubernetes-in-action