CheckExclusive verifies that only a single instance of the provided flags was set by the user.

Fatalf formats a message to standard error and exits the program.

SplitAndTrim splits input separated by a comma and trims excessive white space from the substrings.

Metrics flags.

MetricsHTTPFlag defines the endpoint for a stand-alone metrics HTTP endpoint.

Tags are part of every measurement sent to InfluxDB.