Gitlab-ci omnibus K8s helm3 CI CD

Gitlab-ci omnibus K8s helm3 CI CD

I’m looking for a tutorial, how to make CI/CD to K8s using helm3 without GitLab project Operations Kubernetes “Add Kubernetes Cluster” Wizard :
I have a Gitlab-ce + docker registry (latest) I made K8s Cluster (own kubeadm 1.19.2), install helm 3, install runner in K8s (with helm chart with pod in pod). I couldn’t find the tutorial of interest to me.

Anyone can recommend it?