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Tommie Gannert 82fa993361
Splits the log source handling with a pluggable interface.
Provides a cleaner split between log sources, specifically for not
compiling with systemd libraries.

This is in preparation for a new log source to read from Docker.
2021-03-16 15:36:56 +01:00
mock Adding some test for the showq part. Found a minor bug. 2020-02-24 15:42:20 +01:00
testdata Adding some test for the showq part. Found a minor bug. 2020-02-24 15:42:20 +01:00
.dockerignore Cleaning up the Dockerfile 2020-02-18 13:33:30 +01:00
.gitignore Ignoring more files 2020-02-12 13:38:03 +01:00
.travis.yml Better config for travis 2020-02-25 11:04:53 +01:00
build_static.sh Build binary with official golang image 2019-03-07 15:08:50 -08:00
CHANGELOG.md Update readme and changelog for release. 2018-05-04 12:22:34 +02:00
Dockerfile Merge remote-tracking branch 'digineo/gomod' into digineo-updates 2020-02-19 18:16:20 +01:00
go.mod Revert "Adds a Docker log source." 2021-03-16 15:19:10 +01:00
go.sum Revert "Adds a Docker log source." 2021-03-16 15:19:10 +01:00
LICENSE Check in an initial copy of our Postfix metrics exporter. 2017-02-17 15:29:37 +01:00
logsource_file_test.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
logsource_file.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
logsource_systemd_test.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
logsource_systemd.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
logsource.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
main.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
postfix_exporter_test.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
postfix_exporter.go Splits the log source handling with a pluggable interface. 2021-03-16 15:36:56 +01:00
README.md Revert "Adds a Docker log source." 2021-03-16 15:19:10 +01:00
showq_test.go Adding some test for the showq part. Found a minor bug. 2020-02-24 15:42:20 +01:00

Prometheus Postfix exporter

Prometheus metrics exporter for the Postfix mail server. This exporter provides histogram metrics for the size and age of messages stored in the mail queue. It extracts these metrics from Postfix by connecting to a UNIX socket under /var/spool. It also counts events by parsing Postfix's log entries, using regular expression matching. The log entries are retrieved from the systemd journal or from a log file.

Options

These options can be used when starting the postfix_exporter

Flag Description Default
--web.listen-address Address to listen on for web interface and telemetry 9154
--web.telemetry-path Path under which to expose metrics /metrics
--postfix.showq_path Path at which Postfix places its showq socket /var/spool/postfix/public/showq
--postfix.logfile_path Path where Postfix writes log entries /var/log/maillog
--log.unsupported Log all unsupported lines false
--systemd.enable Read from the systemd journal instead of log false
--systemd.unit Name of the Postfix systemd unit postfix.service
--systemd.slice Name of the Postfix systemd slice. ""
--systemd.journal_path Path to the systemd journal ""

Events from log file

The log file is tailed when processed. Rotating the log files while the exporter is running is OK. The path to the log file is specified with the --postfix.logfile_path flag.

Events from systemd

Retrieval from the systemd journal is enabled with the --systemd.enable flag. This overrides the log file setting. It is possible to specify the unit (with --systemd.unit) or slice (with --systemd.slice). Additionally, it is possible to read the journal from a directory with the --systemd.journal_path flag.

Build options

Default the exporter is build with systemd journal functionality (but it is disabled at default). Because the systemd headers are required for building with systemd, there is an option to build the exporter without systemd. Use the build tag nosystemd.

go build -tags nosystemd