Version 1.0.0

Breaking Changes

• Rename app_count metric to app_group_count.
• Update proc_start_time_seconds metric to correctly be in unix seconds.
• Update default value for -passenger.command.timeout-seconds flag to 5s.
• Remove process metrics collector.
• Remomve / endpoint showing link to metrics path.

Bug Fixes

• Prevent index out of range panics when the number of passenger processes surges past the max pool size temporarily when replacing an existing process.

Improvements

• Upgrade to Go v1.20.1.
• Switch Go modules.
• Upgrade Go dependencies.
• Upgrade bundled Passenger to v6.0.17.
• Switch container image from Alpine Linux to Debian Bullseye.
• Use builder pattern to build binary and copy it into runner image.
• Run container as exporter user instead of nobody.
• Add new fields parsed from passenger status command.
• Use expected types in structs instead of parsing afterwards.
• Configure promu to use netgo instead of installsuffix.
• Switch to sirupsen/logrus logger as prometheus/common no longer includes it.
• Add launch configuration for debugging in Visual Studio Code.
• Add GitHub Actions workflow for testing and linting.
• Simplify Makefile for single command builds.

Version 0.7.1

Bug Fixes

• Prevent index out of range panics when passenger processes are killed.

Version 0.7.0

• Change group to nobody instead of nogroup.

Version 0.6.0

• Run as user nobody and group nogroup instead of root.
• Update Go to v1.9.4.

Version 0.5.1

Bug Fixes

• Include correct files in the docker build.

Version 0.5.0

Improvements

• Added home page with link to metrics.
• Added new fields to output parsed from passenger status command.
• Removed mentions of nginx as this exporter can support other integration modes.

Breaking Changes

• Changed metrics prefix from passenger_nginx to passenger. This affects all passenger metrics.
• Renamed metrics:
  • Changed passenger_top_level_queue to passenger_top_level_request_queue.
  • Changed passenger_app_queue to passenger_app_request_queue.
• Changed unit of passenger command timeout duration to seconds.
• Removed deprecated code_revision field from output parsed from passenger status command.

Version 0.4.1

• Use correct value for app queue.

Version 0.4.0

• Initial attempt at dockerization.