How to install Ingress Nginx Controller on K8S

Install Nginx Ingress Controller in Kubernetes

• Download Nginx controller deployment for Baremetal:
  controller_tag=$(curl -s https://api.github.com/repos/kubernetes/ingress-nginx/releases/latest | grep tag_name | cut -d '"' -f 4) wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/${controller_tag}/deploy/static/provider/baremetal/deploy.yaml

• Rename deployment file:
  mv deploy.yaml nginx-ingress-controller-deploy.yaml

• Apply Nginx ingress controller manifest deployment file:
  kubectl apply -f nginx-ingress-controller-deploy.yaml

Setting Nginx Ingress to use MetalLB

• Patch ingress-nginx-controller service by setting service type to LoadBalancer.
  kubectl -n ingress-nginx patch svc ingress-nginx-controller --type='json' -p '[{"op":"replace","path":"/spec/type","value":"LoadBalancer"}]'
• Edit ingress-nginx-controller service and set externalIPs
  vim external-ips.yaml
    spec:
      externalIPs:
       - Your Node IP
   
• Now let's apply the patch to the service.
  kubectl -n ingress-nginx patch svc ingress-nginx-controller --patch "$(cat external-ips.yaml)"