Kubernetes

• VMs Configuration
• Kubernetes Cluster with Kubeadm
  • Initialization
  • Join
  • Verification
• Deployment
  • Kubernetes Dashboard
  • MetalLB
  • Kubernetes Ingress Ingix
  • Publisher/Subscriber

VMs Configuration

• VMs configuration

Kubernetes Cluster with Kubeadm

• Creating a cluster with kubeadm

Initialization

Master Node

kubeadm init

Mitsuke

Join

Worker Node(s)

kubeadm join 192.168.1.4:6443 --token vp8i2t.lzbba9edmkk6yb5t \
        --discovery-token-ca-cert-hash sha256:10e669de8d4518be18a2efb641237f58c97e966d8843398d578048c277f5aeac

Icetea

Covid

Verification

$ kubectl get nodes -o wide

NAME      STATUS   ROLES                  AGE    VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION     CONTAINER-RUNTIME
covid     Ready    <none>                 4d6h   v1.22.2   192.168.1.6   <none>        Ubuntu 20.04.3 LTS   5.4.0-86-generic   docker://20.10.8
ice-tea   Ready    <none>                 4d6h   v1.22.2   192.168.1.5   <none>        Ubuntu 20.04.3 LTS   5.4.0-86-generic   docker://20.10.8
mitsuke   Ready    control-plane,master   4d6h   v1.22.2   192.168.1.4   <none>        Ubuntu 20.04.3 LTS   5.4.0-86-generic   docker://20.10.8