siddurep/kubernetes-installation

KUBERNETES INSTALLATION STEPS

STEP 1: MASTER NODE INSTALLATION

• Create EC2 Instance from UBUNTU AMI with type t2.medium (2 core CPU and 4GB Ram)
• Github URL: https://github.com/artisantek/kubernetes-installation [use installk8s-1.23.8.sh - stable]

COMMANDS:

git clone https://github.com/artisantek/kubernetes-installation
cd kubernetes-installation
sudo sh installk8s-1.23.8.sh

STEP 2: Kubernetes node template is now ready create an AMI from this instance to create worker nodes

To create an AMI from an instance

1. Right-click on the instance you want to use as the basis for your AMI or Click-on Actions button.
2. Action --> Image --> Create Image

Once the Ami is available (usually it takes 2-8 minutes to get ready), create 2 instances with t2.micro to create worker nodes.

STEP 3: Login back to Master instance created in STEP 1

Initializing Master Server [root user]

sudo su
kubeadm init

Note: Copy the command along with token generated and keep it in a separate file, we need to run this command on worker nodes

Configuring Kube [ubuntu user]

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

Installing a CNI network on master node [ubuntu user]

sudo sysctl net.bridge.bridge-nf-call-iptables=1
kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml
kubectl get nodes

STEP 4: Initialize WORKER NODES [ssh to worker nodes created from STEP 2]

sudo su --> To goto root user
kubeadm join <TOKEN> [Command from STEP 3] --> To connect worker node to Master

STEP 5: Login back to Master instance created in STEP 1

kubectl get nodes