README
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Passenger Exporter
Export Passenger metrics to Prometheus.
To run it:
make
./passenger_exporter [flags]
Exported Metrics
| Metric | Meaning | Type |
|---|---|---|
| passenger_up | Passenger state. | Gauge |
| passenger_version | Phusion Passenger version. | Gauge |
| passenger_top_level_queue | Number of requests in the top-level queue. | Gauge |
| passenger_max_processes | Configured maximum number of processes. | Gauge |
| passenger_current_processes | Current number of processes. | Gauge |
| passenger_app_count | Number of apps. | Gauge |
| passenger_app_queue | Number of requests in app process queues. | Gauge |
| passenger_app_group_queue | Number of requests in app group process queues. | Gauge |
| passenger_app_procs_spawning | Number of processes spawning. | Gauge |
| passenger_requests_processed_total | Number of processes served by a process. | Counter |
| passenger_current_sessions | Number of sessions currently being handled by a process. | Gauge |
| passenger_proc_start_time_seconds | Number of seconds since processor started. | Gauge |
| passenger_proc_memory | Memory consumed by a process. | Gauge |
Flags
./passenger_exporter --help
passenger.instance-registry: Path to the instance registry directory. (default: /tmp)passenger.pid-file: Optional path to a file containing the passenger/nginx PID for additional metrics.log.format: Output format of log messages. One of: [logfmt, json] (default:logfmt).log.level: Only log messages with the given severity or above. One of: [debug, info, warn, error] (default:info).web.listen-address: Addresses on which to expose metrics and web interface. Repeatable for multiple addresses (default::9144).web.telemetry-path: Path under which to expose metrics (default:/metrics).version: Show application version.
Using Containers
You can run this exporter using the ghcr.io/nex-health/passenger-exporter container image.
docker run -d \
-p 9149:9149 \
-v /path/to/passenger-inst-reg-dir:/var/run/passenger-instreg:ro \
-v /path/to/passenger.pid:/tmp/passenger.pid:ro \
ghcr.io/nex-health/passenger-exporter \
--passenger.pid-file /tmp/passenger.pid \
--passenger.instance-registry /var/run/passenger-instreg
Directories
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