Kubernetes Installation

• 1. kubernetes-installation-using-kubeadm
• 2. Installing Kubernetes the Hardway
  • 2.1. Install virtualbox and vagarnt
  • 2.2. then….
• 3. Kubernetes Installation using Ansible

1. kubernetes-installation-using-kubeadm

• https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#before-you-begin
• https://medium.com/containerum/4-ways-to-bootstrap-a-kubernetes-cluster-de0d5150a1e4

Upgrade the version of kubeadm on the master and node01 to 1.16.0 For easier installation, use apt-get install instead of upgrade

sudo apt-get update && sudo apt-get install -qy kubeadm=1.16.0-00

Initialize Control Plane Node (Master)

$ kubeadm init

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 172.17.0.17:6443 --token baawxx.9ez921jerna2rb6f \
    --discovery-token-ca-cert-hash sha256:98cb7e30b0361da3e3eb689cd74af9288dfcc99d36c9b5541b1765f9a9f0bd20

If you do not have the token, you can get it by running the following command on the control-plane node:

kubeadm token list

By default, tokens expire after 24 hours. If you are joining a node to the cluster after the current token has expired, you can create a new token by running the following command on the control-plane node:

on node01

kubeadm join 172.17.0.17:6443 --token baawxx.9ez921jerna2rb6f \
    --discovery-token-ca-cert-hash sha256:98cb7e30b0361da3e3eb689cd74af9288dfcc99d36c9b5541b1765f9a9f0bd20

Install a Network Plugin. As a default, we will go with weave

kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"

2. Installing Kubernetes the Hardway

• GCP
• VirtualBox

2.1. Install virtualbox and vagarnt

2.2. then….

3. Kubernetes Installation using Ansible

• https://www.youtube.com/watch?v=kMKkpgB6IwM
• https://kubernetes.io/blog/2019/03/15/kubernetes-setup-using-ansible-and-vagrant/
• https://medium.com/faun/how-to-create-your-own-kubernetes-cluster-using-ansible-7c6b5c031a5d
• https://www.azavea.com/blog/2014/10/30/running-vagrant-with-ansible-provisioning-on-windows/