Issue with project name and k8s namespace

Created by: gpkc

The regex for project name is not the same that is allowed for k8s namespaces

Error from server (Invalid): error when creating "deploy/kube/namespace.yml": Namespace "tmp_test" is invalid: metadata.name: Invalid value: "tmp_test": a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name',  or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?')