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Gravitational Workshops

Open source series of workshops delivered by Gravitational services team.

Installation

Requirements

You will need Mac OSX with at least 7GB RAM and 8GB free disk space available.

  • docker 17.03.2-ce
  • VirtualBox
  • kubectl 1.9.0
  • minikube 0.25.0

Docker

For Linux: follow instructions provided here.

If you have Mac OS X (Yosemite or newer), please download Docker for Mac here.

Older docker package for OSes older than Yosemite -- Docker Toolbox located here.

VirtualBox

Let’s install VirtualBox first.

Get latest stable version from https://www.virtualbox.org/wiki/Downloads

Linux: KVM2

Follow the instructions here: https://github.com/kubernetes/minikube/blob/master/docs/drivers.md#kvm2-driver

Kubectl

For Mac OS X:

curl -O https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/darwin/amd64/kubectl \
    && chmod +x kubectl && sudo mv kubectl /usr/local/bin/

For Linux:

curl -O https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/linux/amd64/kubectl \
    && chmod +x kubectl && sudo mv kubectl /usr/local/bin/

Minikube

For Mac OS X:

curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.25.0/minikube-darwin-amd64 \
    && chmod +x minikube && sudo mv minikube /usr/local/bin/

For Linux:

curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.25.0/minikube-linux-amd64 \
    && chmod +x minikube && sudo mv minikube /usr/local/bin/

Also, you can install drivers for various VM providers to optimize your minikube VM performance. Instructions can be found here: https://github.com/kubernetes/minikube/blob/master/docs/drivers.md.

Xcode and local tools

Xcode will install essential console utilities for us. You can install it from AppStore.

Set up cluster using minikube

To run cluster:

Mac OS

# starts minikube
minikube start --kubernetes-version=v1.9.0
# this command should work
kubectl get nodes
# use docker from minikube
eval $(minikube docker-env)
# this command to check connectivity
docker ps

Linux

# starts minikube
minikube start --kubernetes-version=v1.9.0 --vm-driver=kvm2
# this command should work
kubectl get nodes
# use docker from minikube
eval $(minikube docker-env)
# this command to check connectivity
docker ps