I am following the guide https://rancher.com/blog/2019/connecting-gitlab-autodevops-authorized-cluster-endpoints/ to integrate rancher cluster in my GitLab instance (11.10.8 CE). Unfortunately, I am not successful to do that. The authentication looks ok but when I try to install Helm Tiller, I get the following error:
Something went wrong while installing Helm Tiller
- Kubernetes error: 400
I also see other people have a very similar error.