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March 28, 2022 04:07
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sudo apt-get update && sudo apt-get upgrade -y | |
--------- INSTALL DOCKER --------- | |
sudo apt install docker.io -y | |
sudo systemctl start docker | |
sudo systemctl enable docker | |
sudo usermod -aG docker $USER | |
--------- Adding Kubernetese Repository ----- | |
sudo curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - | |
sudo vim /etc/apt/sources.list.d/kubernetes.list | |
deb http://apt.kubernetes.io/ kubernetes-xenial main | |
sudo apt-get update | |
----- Installing Kubeadm ---- | |
sudo apt-get install -y kubelet=1.20.2-00 kubeadm=1.20.2-00 kubectl=1.20.2-00 | |
# The kubelet is now restarting every few seconds, as it waits in a crashloop for kubeadm to tell it what to do. | |
sudo apt-mark hold kubelet kubeadm kubectl | |
# because it swap mem can degrade K8s orchestration performance | |
sudo swapoff -a | |
------- on MASTER Node --------- | |
sudo kubeadm init | |
# if success, you will get a join command to bind the worker nodes with the master's api-server listening on port 6443 | |
# ::WARN:: make sure your worker nodes can connect to the api-server on port 6443 | |
# Check if the Control Plane Containers are started or not | |
sudo docker ps | |
------ on WORKER Node ----- | |
# Run the example command bellow according to your inputs | |
# sudo kubeadm join <master-node-ip>:6443 --token <token_id> \ | |
# --discovery-token-ca-cert-hash sha256:<fingerprint> | |
------ on Master Node ----- | |
#get all worker nodes and check the state. | |
kubectl get nodes | |
# you will see the master and workers are in notReady state. Means they have no internal overlay networking enabled. | |
# To achieve Overlay Network inside the K8s Cluster, we are going to install WeaveNet on Master node. | |
kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')" | |
#get all worker nodes | |
kubectl get nodes | |
#get all pods | |
kubectl get pods -A |
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