Kubectl expose deployment

kubectl expose deployment
kubectl expose deployment nginxapp --name=nginxclusterip --port=80 --target-port=8080

kubectl expose deployment kubernetes-dashboard -n kube-system --type=NodePort

Create a external LB, in AWS AWS LB, to provide external access to your application:

kubectl expose deployment hello-world --type=LoadBalancer --name=my-service 

Verify:

kubectl get services my-service
NAME                   TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE
my-service    ClusterIP   172.20.251.125   <none>        80/TCP    3d5h

if EXTERNAL-IP address is not assigned verify that aws-load-balancer-controller is installed. 

Activities

• Understand the differences between: kubectl create service loadbalancer and kubectl expose deployment

Related

• DNS-1035
• kind: Ingress

See also

• kubectl expose [ deployment | pod ]
• Kubernetes networking: network policies, Network Policy Providers, CNI, Calico, flannel, Service mesh, Istio, kube-proxy, coredns, AWS VPC CNI: vpc-cni, Kubernetes: Ingress controllers, IPVS, ServiceTypes: LoadBalancer, ClusterIP, NodePort, ExternalName, Endpoints, EndpointSlices, Kubernetes DNS, svc.cluster.local, Weave Net

https://kubernetes.io/docs/tutorials/stateless-application/expose-external-ip-address/