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Kubernetes DIY
#/* ****************Master.sh **************** */
#/* bash Master.sh | tee ~/master.out
#!/bin/bash -x
## Abril 2020
echo "Ubuntu 18.04"
sleep 3
echo
echo "Disable swap until next reboot"
echo
sudo swapoff -a
echo "Update the local node"
sudo apt-get update && sudo apt-get upgrade -y
echo
echo "Install Docker"
sleep 3
sudo apt-get install -y docker.io
echo
echo "Install kubeadm, kubelet, and kubectl"
sleep 3
sudo sh -c "echo 'deb http://apt.kubernetes.io/ kubernetes-xenial main' >> /etc/apt/sources.list.d/kubernetes.list"
sudo sh -c "curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -"
sudo apt-get update
sudo apt-get install -y kubeadm=1.17.1-00 kubelet=1.17.1-00 kubectl=1.17.1-00
sudo apt-mark hold kubelet kubeadm kubectl
echo
echo "Installed - now to get Calico Project network plugin"
## If you are going to use a different plugin you'll want
## to use a different IP address, found in that plugins
## readme file.
sleep 3
sudo kubeadm init --kubernetes-version 1.17.1 --pod-network-cidr 192.168.0.0/16
sleep 5
echo "Running the steps explained at the end of the init output for you"
mkdir -p $HOME/.kube
sleep 2
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sleep 2
sudo chown $(id -u):$(id -g) $HOME/.kube/config
echo "Download Calico plugin and RBAC YAML files and apply"
wget https://tinyurl.com/yb4xturm -O rbac-kdd.yaml
wget https://tinyurl.com/y2vqsobb -O calico.yaml
kubectl apply -f rbac-kdd.yaml
kubectl apply -f calico.yaml
echo
echo
sleep 3
echo "You should see this node in the output below"
echo "It can take up to a mintue for node to show Ready status"
echo
kubectl get node
echo
echo
echo "Script finished. Move to the next step"
#!/bin/bash
#/* **************** k8sSecond.sh **************** */
#/*
# *
# */
#!/bin/bash -x
## TxS abril 2020
##
echo " This script is written to work with Ubuntu 18.04"
echo
sleep 3
echo " Disable swap until next reboot"
echo
sudo swapoff -a
echo " Update the local node"
sleep 2
sudo apt-get update && sudo apt-get upgrade -y
echo
sleep 2
echo " Install Docker"
sleep 3
sudo apt-get install -y docker.io
echo
echo " Install kubeadm, kubelet, and kubectl"
sleep 2
sudo sh -c "echo 'deb http://apt.kubernetes.io/ kubernetes-xenial main' >> /etc/apt/sources.list.d/kubernetes.list"
sudo sh -c "curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -"
sudo apt-get update
sudo apt-get install -y kubeadm=1.17.1-00 kubelet=1.17.1-00 kubectl=1.17.1-00
sudo apt-mark hold kubelet kubeadm kubectl
echo
echo " Script finished. You now need the kubeadm join command"
echo " from the output on the master node"
echo
# */ student@ckad-2:~$ sudo kubeadm join --token 118c3e.83b49999dc5dc034 10.128.0.3:6443 --discovery-token-ca-cert-hash sha256:40aa946e3f53e38271bae24723866f5
# */ student@ckad-1:~$ source <(kubectl completion bash)
# */ student@ckad-1:~$ echo "source <(kubectl completion bash)" >> ~/.bashrc
# */ kubectl describe nodes | grep -i Taint
# */ kubectl taint nodes --all node-role.kubernetes.io/master-
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