Setup k3s VMs

setupk3svms.sh

# Install multipass
sudo snap install multipass --classic

# Launch nodes
multipass launch -n master & multipass launch -n node1 & multipass launch -n node2

# Download, transfer and run master install script
curl -sfL https://get.k3s.io > k3s.sh
multipass transfer k3s.sh master:
multipass exec master bash k3s.sh

# Get k8s joining token from master
multipass exec master sudo cat /var/lib/rancher/k3s/server/node-token > token

# Get master ip
multipass ls | grep master | awk '{print $3}' > masterip

# Create script to join to master node
echo 'curl -sfL https://get.k3s.io | K3S_URL=https://'$(cat masterip):6443' K3S_TOKEN='$(cat token) sh - > node_join.sh

# Trasnfer scripts to node vms
multipass transfer node_join.sh node1: 
multipass transfer node_join.sh node2:

# Run script on node vms
multipass exec node1 bash node_join.sh & multipass exec node2 bash node_join.sh

# Get kubectl configuration file
multipass exec master sudo cat /etc/rancher/k3s/k3s.yaml > k3s.yaml
# Use ip of master in config
cat k3s.yaml | sed "s/127.0.0.1/$(cat masterip)/" >> k3s.yaml

# Confirm that we can see nodes
kubectl get nodes --kubeconfig k3s.yaml -w