Add Keystore field to CRD to support HTTPS

[jhunzik]

About

Adds the ability to mount a keystore.jks file for setting up routes that host an HTTP server over TLS.

Hero Instructions

1. Start with a fresh Minikube cluster or equivalent
2. From the operator/webhook directory: make build && minikube image load ghcr.io/octoconsulting/keip/route-webhook:0.6.0
3. In the operator directory, run make all to deploy the integration route controller.
4. Install CertManager kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.15.0/cert-manager.yaml
5. Create the JKS keystore secret: k create secret generic --from-literal=password=password jks-password
6. Deploy the example route: kubectl apply -k operator/example
7. Port forward the pod and verify it can be hit in the browser: kubectl port-forward testroute-74d574bf85-tbv9m 8443:8443

[mcalcote]

Hero'd on b2faec5 👍