A common use-case for any Kubernetes web UI is to deploy it in-cluster and set up an ingress server for having it available to users.
The easiest way to install headlamp in your existing cluster is to use our helm chart .
# first add our custom repo to your local helm repositories helm repo add headlamp https://headlamp-k8s.github.io/headlamp/ # now you should be able to install headlamp via helm helm install my-headlamp headlamp/headlamp --namespace kube-system
As usual it is possible to configure the helm release via the values file or setting your preferred values directly.
# install headlamp with your own values.yaml helm install my-headlamp headlamp/headlamp --namespace kube-system -f values.yaml # install headlamp by setting your values directly helm install my-headlamp headlamp/headlamp --namespace kube-system --set replicaCount=2
We also maintain a simple/vanilla file for setting up a Headlamp deployment and service. Be sure to review it and change anything you need.
If you’re happy with the options in this deployment file, and assuming
you have a running Kubernetes cluster and your
kubeconfig pointing to it,
you can run:
kubectl apply -f https://raw.githubusercontent.com/kinvolk/headlamp/main/kubernetes-headlamp.yaml
Exposing Headlamp with an ingress server
With the instructions in the previous section, the Headlamp service should be running, but you still need the ingress server as mentioned. We provide an example sample ingress yaml file for this purpose, but you have to manually replace the URL placeholder with the desired URL (the ingress file also assumes that you have contour and a cert-manager set up, but if you don’t then you’ll just not have TLS).
Assuming your URL is
headlamp.mydeployment.io, getting the sample ingress
file and changing the URL can quickly be done by:
curl -s https://raw.githubusercontent.com/kinvolk/headlamp/main/kubernetes-headlamp-ingress-sample.yaml | sed -e s/__URL__/headlamp.mydeployment.io/ > headlamp-ingress.yaml
and with that, you’ll have a configured ingress file, so verify it and apply it:
kubectl apply -f ./headlamp-ingress.yaml
Exposing Headlamp with port-forwarding
If you want to quickly access Headlamp (after having its service running) and don’t want to set up an ingress for it, you can run use port-forwarding as follows:
kubectl port-forward -n kube-system service/headlamp 8080:80
and then you can access
localhost:8080 in your browser.