
+ create a single Dockerfile for different Ubuntu versions + upgrade prometheus-client to a compatible version Change-Id: I121ee0e174b8cbc5f52c371a9b56a8dc6b981d15
+ create a single Dockerfile for different Ubuntu versions + upgrade prometheus-client to a compatible version Change-Id: I121ee0e174b8cbc5f52c371a9b56a8dc6b981d15