Materials for Kubernetes Workshop

This workshop is based on:

• kubernetes-up-and-running/examples by Brendan Burns and Joe Beda
• Kubernetes: Up and Running book by Kelsey Hightower, Brendan Burns and Joe Beda

Table of Contents

1. Prerequirements
   • Technical Knowledge
   • Kubernetes Cluster
2. Materials
   • Books
   • Documentation
3. Cluster Preparation
   • Local Vagrant Environment
   • Google Kubernetes Engine

Prerequirements

Technical Knowledge

Workshop participants should have woring knowledge of:

• Linux environment (commands, editors, packages, etc.)
• Docker
• Vagrant
• VirtualBox

Kubernetes Cluster

Each participant should have access to a Kubernetes cluster (1 master + 2 worker nodes) prepared before the workshop.
We suggest to use one of the 2 options:

• Local environement based on Vagrant + VirtualBox
• Google Kubernetes Engine

Materials

Books

• Kubernetes: Up and Running book by Kelsey Hightower, Brendan Burns and Joe Beda

Documentation

• kubernetes > Documentation > Concepts

Cluster Preparation

Local Vagrant Environment

It requires:

• Laptop with min. 8GB RAM
• Preferably Linux environemnt on the laptop
• Vagrant and VirtualBox installed

Vagrant Environment setup:

1. Install VirtualBox: https://www.virtualbox.org/wiki/Downloads
2. Install Vagrant: https://www.vagrantup.com/docs/installation/
3. Verify correct Vagrant/VirtualBox versions and config

• the following versions are confirmed to be working OK:

# vagrant --version
  Vagrant 2.2.6
# VirtualBox --help
  Oracle VM VirtualBox VM Selector v6.0.14

• in case you have another hypervisor (like KVM) in use, you maight need to disable it, by following this instruction: Installing Vagrant > Running Multiple Hypervisors > Linux, VirtualBox, and KVM

4. Install kubectl on your system

• Follow these instructions: Install and Set Up kubectl
• or use Google Kubernetes yum/apt repos: instructions

5. Clone GIT repo:

$ git clone https://github.com/ttarczynski/kubernetes-101-workshop.git
$ cd kubernetes-101-workshop/

6. Run the initialization script:

$ ./01_initialize_kubernetes_cluster.sh

7. Verify:

$ kubectl get componentstatus
NAME                 STATUS    MESSAGE              ERROR
controller-manager   Healthy   ok
scheduler            Healthy   ok
etcd-0               Healthy   {"health": "true"}

$ kubectl get nodes
NAME      STATUS    ROLES     AGE       VERSION
ks101     Ready     master    3d        v1.15.5
ks102     Ready     <none>    3d        v1.15.5
ks103     Ready     <none>    3d        v1.15.5

Google Kubernetes Engine

Use this in case the Local Vagrant Environment option doesn't work for you.
It requires:

• Google Cloud account with enabled billing
  (there’s $300 credit for free trial)

GCP Environment setup:

1. Follow steps 1–3 from the Running a Container in Kubernetes with Container Engine Codelab
2. Scale the cluster to 2 worker nodes
3. Make sure to clean-up after you're done with the excercises (to save on cost).

$ gcloud container clusters delete hello-world