Failed to save resource

• Failed to save resource: the name of the object (grafana-prometheus) does not match the name on the URL (grafana)

• Failed to save resource: Ingress.extensions "grafana" is invalid: spec.rules[1].host: Invalid value: "prometheus.chart-example.local, prom.local": a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')