Kubernetes DIY

Instalando Kubernetes DIY -Master

#/* ****************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"

worker node

#!/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-