Docker, Kubernetes and Gravity Trainings by Gravitational
Warning
The Gravitational Workshops were archived 2023-07-01, as Gravitational no longer offers Kubernetes or Gravity training.
Please see our Gravitational is Teleport blog post for more information.
Open source series of workshops delivered by the Gravitational team.
You will need a Linux or macOS box with at least 7GB
of RAM and 20GB
of free disk space available.
For Linux: follow instructions provided here.
If you have macOS (Yosemite or newer), please download Docker for Mac here.
Older docker package for OSes older than Yosemite -- Docker Toolbox located here.
HyperKit is a lightweight macOS hypervisor which minikube supports out of the box and which should be already installed on your machine if you have Docker for Desktop installed.
More information: https://minikube.sigs.k8s.io/docs/reference/drivers/hyperkit/.
Alternatively, install VirtualBox like described below.
Follow the instructions here: https://minikube.sigs.k8s.io/docs/reference/drivers/kvm2/.
Alternatively, install VirtualBox like described below.
Let’s install VirtualBox.
Get latest stable version from https://www.virtualbox.org/wiki/Downloads.
Note: When using Ubuntu you may need to disable Secure Boot. For an alternative approach to installing with Secure Boot enabled, follow the guide here.
For macOS:
curl -O https://storage.googleapis.com/kubernetes-release/release/v1.16.2/bin/darwin/amd64/kubectl \
&& chmod +x kubectl && sudo mv kubectl /usr/local/bin/
For Linux:
curl -O https://storage.googleapis.com/kubernetes-release/release/v1.16.2/bin/linux/amd64/kubectl \
&& chmod +x kubectl && sudo mv kubectl /usr/local/bin/
For macOS:
curl -Lo minikube https://storage.googleapis.com/minikube/releases/v1.5.1/minikube-darwin-amd64 \
&& chmod +x minikube && sudo mv minikube /usr/local/bin/
For Linux:
curl -Lo minikube https://storage.googleapis.com/minikube/releases/v1.5.1/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 will install essential console utilities for us. You can install it from the App Store.
To run cluster:
macOS
# starts minikube
$ minikube start --kubernetes-version=v1.16.2
# 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=v1.16.2 --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
$ git clone https://github.com/gravitational/workshop.git
$ cd workshop
$ kubectl create -f registry.yaml