Gitlab tokens prometheus exporter

Exports the number of days before expiration of gitlab tokens as Prometheus metrics

Getting Started

Provide the following environment variables (locally you can use a .env file) :

GITLAB_BASEURL=<gitlab hostname>
GITLAB_TOKEN=<gitlab authentication token>
DATA_REFRESH_HOURS=6 (should be > 0 and <= 24 or else, it will be set to the default value: 6)

Run the following commands :

if you have cargo already installed:

cargo build --release

if you want to build a OCI image with docker:

docker build . -t gitlab-tokens-exporter

Known limitations

When launching the exporter, it will first get infos on all the gitlab tokens, so it can take some time depending on the number of projects to scan.
The exporter returns 204 No Content until the first scan is done.