Is there a way to keep the same external IP that current load balancer has even when I make a new deployment?
When I delete the deployment connected to the load balancer, load balancer still stays so is it possible to connect a new deployment to that existing load balancer?
yes, you can pass the externalIP in the service object's yaml file.
Try following this -
apiVersion: v1
kind: Service
metadata:
name: my-service
spec:
selector:
app: MyApp
ports:
- protocol: TCP
port: 80
targetPort: 9376
loadBalancerIP: 78.11.24.19
type: LoadBalancerPlease refer to https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer for more info on this