k8s-on-premise

1. Create the environment using vagrant

   vagrant up
   

2. Set up machines for kubernetes cluster

   ansible-playbook cluster.yaml -i inventory
   

3. On the first master node init the cluster

   sudo kubeadm init --apiserver-advertise-address=10.0.0.10 \
     --pod-network-cidr=192.168.0.0/16 --control-plane-endpoint 10.0.0.9:8443 \
     --upload-certs
   

4. Set up kubectl

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

5. Set up networking plugin

   kubectl create -f https://projectcalico.docs.tigera.io/manifests/tigera-operator.yaml
   kubectl create -f https://projectcalico.docs.tigera.io/manifests/custom-resources.yaml
   

6. Join second master node

   sudo kubeadm join 10.0.0.9:8443 --token TOKEN \
     --apiserver-advertise-address=10.0.0.11 \
     --discovery-token-ca-cert-hash DISCOVERY_TOKEN \
     --control-plane --certificate-key CERTIFICATE_KEY
   

7. Join third master node

   sudo kubeadm join 10.0.0.9:8443 --token TOKEN \
     --apiserver-advertise-address=10.0.0.12 \
     --discovery-token-ca-cert-hash DISCOVERY_TOKEN \
     --control-plane --certificate-key CERTIFICATE_KEY
   

8. Join worker nodes, run it on both nodes

   sudo kubeadm join 10.0.0.9:8443 --token TOKEN \
     --discovery-token-ca-cert-hash DISCOVERY_TOKEN
   

9. Run demo app

   kubectl apply -f https://k8s.io/examples/application/deployment.yaml