Installation

Installing K8s¶

Vagrant Setup¶

Install Dev Setup Publish a web app Deployment Pattern Terraform App Deployment

Kubeadm¶

Kops¶

Verification¶

• Networking

  vagrant ssh k8s-m-1
  # Check Routing within the master node
  sudo apt-get install net-tools
  route           # Displays the routing network
  # Check syslog errors
  tail -f /var/log/syslog     # Ctrl + Z to exit
  # Copy file from Master Node to Host machine
  mkdir -p ~/.kube
  vagrant port k8s-m-1        # Find the SSH port of the k8s-m-1 server
  # Copy the file using scp (ssh password is vagrant)
  scp -P 2222 vagrant@127.0.0.1:/home/vagrant/.kube/config ~/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config
  # Get Cluster Information
  kubectl cluster-info
  # Get Master Node Component health
  kubectl get componentstatus
  
  # In case Scheduler or Controller Manager is showing as Unhealthy or Connection refused.
  # Modify the following files on all master nodes:
  sudo vi /etc/kubernetes/manifests/kube-scheduler.yaml
  # Clear the line (spec->containers->command) containing this phrase: - --port=0
  sudo vi /etc/kubernetes/manifests/kube-controller-manager.yaml
  # Clear the line (spec->containers->command) containing this phrase: - --port=0
  sudo systemctl restart kubelet.service