A Prometheus exporter for certificates focusing on expiration monitoring, written in Java.
certificate-exporter
will parse SSL certificates in a number of directories recursively and expose their expiry as a Prometheus metric.
It also can fetch remote endpoint certificate and parse it.
docker image build -t certificate-exporter:1.1.0 .
docker run -d -p 1234:1234 certificate-exporter:1.1.0