[Saas] Add ability to download kubeconfig to talk to vcluster

[moshloop]

As part of the tenant chart:

• Create a new service account with permissions only to the CRD's, Configmaps and Secrets

• Create a service-account secret: https://kubernetes.io/docs/reference/access-authn-authz/service-accounts-admin/#create-token

• Add an api endpoint /api/kubeconfig to retrieve the kubeconfig - generate it and fill in the token from the secret.

• Add an api endpoint /api/kube-proxy that forward traffic to kubernetes.default.svc stripping off the path

[yashmehrotra]

Approach: Support Whatever is supported by flux kustomize Start with basic git:// Strategic merge patches to delete/whitelist

Gitops data in a mission-control table Once added:

• Commit back to saas-prod, use playbooks repo
• Heart beat chart will create cm in workload mc instance
• Create virtual scraper, insert CI
• Add CI based events on playbook (on catalog.create update, run these, on delete remove files) see gitops playbook action template
• Dont create obj directly, create config items
• Using gitops playbook actions, push it saas prod