journald parser and Prometheus exporter
Export Prometheus metrics from journald events using Prometheus Go client library. For demonstration purposes, journald is filtered for the sudo syslog identifier and a basic Prometheus counter metric is incremented.
Build
go get github.com/msgarbossa/prom-journald-exporter
cd $GOPATH/src/github.com/msgarbossa/prom-journald-exporter
go build
Download
The linux-amd64 build can be downloaded from releases
Example
When started with the -debug option, matching journald entries are printed to stdout.
$ ./prom_journald_exporter -h
Usage of ./prom_journald_exporter:
-debug
Enable debug
-listenHTTP string
ip:port to listen for http requests (default ":9101")
$ ./prom_journald_exporter -debug
listening on :9101 /metrics
Run a sudo command from another session and verify metric counts.
$ curl -s http://localhost:9101/metrics | grep sudo
# HELP sudo_count_total The total number of sudo events
# TYPE sudo_count_total counter
sudo_count_total 0
$ sudo ls > /dev/null
$ curl -s http://localhost:9101/metrics | grep sudo
# HELP sudo_count_total The total number of sudo events
# TYPE sudo_count_total counter
sudo_count_total 3
