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

See also

• kubectl expose [ deployment | pod ]

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