Kubectl expose deployment nginx-page2 -type=ClusterIP -port=9000 -target-port=80 Kubectl expose deployment nginx-page1 -type=ClusterIP -port=8000 -target-port=80 Kubectl delete service nginx-page1 nginx-page2Īnd create two new cluster IP services: – Now let’s have a look at using an ingress.įirst, let’s get rid of those load balanced services: – Great! So we’re using the external IP address (local host in this case) and a port number to connect to our applications. As we’ve used a load balanced service in k8s in Docker Desktop they’ll be available as localhost:PORT: – Ok, now let’s check that the nginx pages are working. Kubectl expose deployment nginx-page2 -type=LoadBalancer -port=9000 -target-port=80Ĭonfirm that the deployments and services have come up successfully: – ![]() Kubectl expose deployment nginx-page1 -type=LoadBalancer -port=8000 -target-port=80 Kubectl create deployment nginx-page2 -image=ghcr.io/dbafromthecold/nginx:page2Īnd expose those deployments with a load balanced service: – Kubectl create deployment nginx-page1 -image=ghcr.io/dbafromthecold/nginx:page1 So let’s create two nginx deployments from a custom image (available on the GHCR): – What we’re going to do is spin up two nginx pages that will serve as our applications and then firstly use load balanced services to access them, followed by an ingress. I’m a practical person by nature…so let’s run through examples of both (running everything in Kubernetes for Docker Desktop). Ok, that statement doesn’t really clear things up (for me anyway). Load balanced services operate at layer 4 (the transport layer) so can load balance arbitrary tcp/udp/sctp services. The key difference between the two is that ingress operates at networking layer 7 (the application layer) so routes connections based on http host header or url path. ![]() ![]() Being able to access an application that’s running in Kubernetes from outside of the cluster, but there are differences! ![]() What is the difference between using a load balanced service and an ingress to access applications in Kubernetes?īasically, they achieve the same thing.
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