Mechanism to mount secrets in kubernetes from Vault KMS

1. Need to add secrets configs since sensitive info can't be used in configmaps, will look at how to have this injected from Vault. Likely solution i will use is https://github.com/kubernetes-sigs/secrets-store-csi-driver which gets the secrets from vault and mounts it as a CSI volume.

2. Then i will add the secrets config to the statefulset manifests