prometheus/ssl_exporter
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Make the description in the README more succinct

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Rob Best 2020-11-15 22:28:36 +00:00
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README.md
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# SSL Certificate Exporter
The [blackbox_exporter](https://github.com/prometheus/blackbox_exporter) allows
you to test the expiry date of a certificate as part of its HTTP(S) probe -
which is great. It doesn't, however, tell you which certificate in the chain is
nearing expiry or give you any other information that might be useful when
sending alerts.
For instance, there's a definite value in knowing, upon first receiving an
alert, if it's a certificate you manage directly or one further up the chain.
It's also not always necessarily clear from the address you're polling what kind
of certificate renewal you're looking at. Is it a Let's Encrypt, in which case
it should be handled by automation? Or your organisation's wildcard? Maybe the
domain is managed by a third-party and you need to submit a ticket to get it
renewed.
Whatever it is, the SSL exporter gives you visibility over those dimensions at
the point at which you receive an alert. It also allows you to produce more
meaningful visualisations and consoles.
Exports metrics for certificates collected from TCP probes, local files or
Kubernetes secrets. The metrics are labelled with fields from the certificate,
which allows for informational dashboards and flexible alert routing.
## Table of Contents