GCE + docker + minikube + kubectl

README.md

Create a GCE Image with VM enabled

source: https://cloud.google.com/compute/docs/instances/enable-nested-virtualization-vm-instances

$ gcloud compute disks create ubuntu-vm-disk --image-project ubuntu-os-cloud --image-family ubuntu-1604-lts --zone us-central1-a

$ gcloud compute images create ubuntu-nested-vm-image \
  --source-disk ubuntu-vm-disk --source-disk-zone us-central1-a \
  --licenses "https://www.googleapis.com/compute/v1/projects/vm-options/global/licenses/enable-vmx"

# simple instance
$ gcloud compute instances create ubuntu-nested-vm --zone us-central1-a \
          --min-cpu-platform "Intel Haswell" \
          --image ubuntu-nested-vm-image

# improved instance
$ gcloud compute instances create ubuntu-nested-vm-4cpus --zone us-central1-a \
          --min-cpu-platform "Intel Haswell" \
          --custom-cpu=4 \
          --custom-memory=18GB \
          --image ubuntu-nested-vm-image

$ gcloud compute ssh ubuntu-nested-vm

duh@ubuntu-nested-vm:~$ grep -cw vmx /proc/cpuinfo
> 1

Installing docker

source: https://docs.docker.com/install/linux/docker-ce/ubuntu/

# remove older versions
# $ sudo apt-get remove docker docker-engine docker.io containerd runc
$ sudo apt-get update
$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
$ sudo apt-key fingerprint 0EBFCD88
$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"
$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io
$ sudo docker run hello-world

Installing kubectl

source: https://kubernetes.io/docs/tasks/tools/install-kubectl/#install-using-native-package-management

$ sudo apt-get update && sudo apt-get install -y apt-transport-https
$ curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
$ echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list
$ sudo apt-get update
$ sudo apt-get install -y kubectl

Installing minikube

source: https://kubernetes.io/docs/tasks/tools/install-minikube/

# you can verify that virtualization is enabled if the output is non-empty
# $ egrep 'vmx|svm' /proc/cpuinfo
$ curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
  && chmod +x minikube
$ sudo cp minikube /usr/local/bin && rm minikube
# vm-driver = none : will use docker instead of virtualbox
$ sudo minikube start --vm-driver=none

Hello World with minikube

$ sudo kubectl run hello-minikube --image=k8s.gcr.io/echoserver:1.10 --port=8080
$ sudo kubectl expose deployment hello-minikube --type=NodePort
$ curl $(sudo minikube service hello-minikube --url)