Hi Rocki,
We are actively working on an implementation of ephemeral Gateway deployment on Kubernetes, which will be installed and updated with Helm Charts. Unfortunately, these Charts are not publicly available yet. My team and I will work on a blog post about our work and include a very basic Helm chart for the Gateway.
In the mean time, Helm charts are quite easy to develop for single image deployments, and there is very good documentation to get started:
https://docs.helm.sh/developing_charts
https://medium.com/google-cloud/kubernetes-and-helm-create-your-own-helm-chart-5f54aed894c2
Configuration for the Gateway container is documented here:
Using the Container Gateway - CA API Gateway - 9.4 - CA Technologies Documentation
Cheers,
Jamie Williams