Prometheus exporter for watching file content

How it works

You give a list to this exporter and it reads first line of the file if it exists.
If the first line can be converted to integer then it's exported.

How to install

pip3 install prometheus-file-content-exporter

This will give you prometheus-file-content-exporter command line that you can run.

How to run it

Exporter need yaml as configuration.
You can specify path to config via environment variable EXPORTER_CONFIG.
You can configure port on which it is exposed by environment variable EXPORTER_PORT

Configuration file

In configuration file you need a list of files. Those files will be watched.
Example:

# The list of file to get content from
files:
- /var/svn/main/db/current
- /tmp/test

Example exporter output

file_content_tmp_test{file="/tmp/test"} 1123.0

How to publish a new version

1. Release new version on GitHub
2. Update version in setup.py
3. Run python3 setup.py sdist upload -r pypi

License

This software is released under the MIT license.