Chart 1.5.5: Add debugging/metrics options
New values options:
registry.log.level can be used to set the log level (e.g., to
"debug"). The default is level is "info".
registry.http.debug.addr, registry.http.debug.prometheus.enabled, and
registry.http.debug.prometheus.path can be set to enabling debugging
and metrics. See
https://distribution.github.io/distribution/about/configuration/#debug
for more information.