Version 1.4.0 of PromEx has been published to Hex.

Changelog for this version:

Changed

• The Phoenix plugin now requires an :endpoint configuration option to be passed to it containing the module
  for which metrics will be captured.

Added

• Plug.Router plugin and dashboard.
• PlugCowboy plugin and dashboard.
• Phoenix plugin now supports multiple routers and multiple endpoints.
• Phoenix plugin and dashboards now contains endpoint configuration data.
• Phoenix plugin now captures socket metrics (dashboard not yet updated though).
• Ecto plugin captures total_time metrics (dashboard not yet updated though).
• Add an optional configuration to dashboard renderer and each plugin so that the metrics_prefix can be altered.

Fixed

• Oban dashboard overview stat panels.

Version 1.0.1 of PromEx has been published to Hex

This release includes mostly documentation fixes and a minor bug fix to the Oban plugin. Give it a whirl!

Great question! The metrics plug that comes with PromEx has no authorization configuration available since I have another library that I maintain that deals with things like that. I will probably pull in authorization into the builtin plug since it is a common request in the near future. But for now I recommend people use Unplug which can unhook plugs from your plug pipeline.

PromEx is currently capturing metrics for The Changelog and you can look at how they secure the metrics endpoint using Unplug:

https://github.com/thechangelog/changelog.com/blob/master/lib/changelog_web/endpoint.ex#L53-L55
https://github.com/thechangelog/changelog.com/blob/master/lib/changelog_web/plugs/metrics_predicate.ex