11. Kubernetes setup

You can use the tools/k8s-helper.sh script to install kubectl. Just call

$ ./tools/minikube-helper download-kubectl

and then the kubectl will get downloaded

Example for OSX

$ curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl
$ chmod +x ./kubectl
$ sudo mv ./kubectl /usr/local/bin/kubectl

Example for Linux

$ curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
$ chmod +x ./kubectl
$ sudo mv ./kubectl /usr/local/bin/kubectl

Check out this page for more information.

You can use the tools/k8s-helper.sh script to install Minikube. Just call

$ ./tools/minikube-helper download-minikube

and then the Minikube cluster will get downloaded

Example for OSX

$ curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.20.0/minikube-darwin-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/

Feel free to leave off the sudo mv minikube /usr/local/bin if you would like to add minikube to your path manually.

Example for Linux

$ curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.20.0/minikube-linux-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/

Feel free to leave off the sudo mv minikube /usr/local/bin if you would like to add minikube to your path manually. Check out this page for more info on the installation.

By default if you install Minikube all the certificates get installed in your ~/.minikube folder. Your kubectl configuration under ~/.kube/config will also get updated to use Minikube.

	Important
	If you just want to run the default, demo setup you can skip this section

To target a given Kubernetes instance one needs to pass around Certificate Authority key and also user keys.

You can read more about the instructions on how to generate those keys here. Generally speaking if you have a Kubernetes installation (e.g. minikube) this step has already been done for you. Time to reuse those keys on the workers.

Extracted from the official docs.

Configure kubectl to connect to the target cluster using the following commands, replacing several values as indicated:

$ kubectl config set-cluster default-cluster --server=https://${MASTER_HOST} --certificate-authority=${CA_CERT}
$ kubectl config set-credentials default-admin --certificate-authority=${CA_CERT} --client-key=${ADMIN_KEY} --client-certificate=${ADMIN_CERT}
$ kubectl config set-context default-system --cluster=default-cluster --user=default-admin
$ kubectl config use-context default-system