collectd-tls-expiry-monitoring

Minimal collectd module to report expiry time of a HTTPS TLS certificate.

Usage

See collectd.conf for an example (minimal) config.

Example

<Plugin python>
    ModulePath "/path/to/modules/"
    Import "tls_cert_monitor"
    <Module tls_cert_monitor>
        hosts "github.com" "google.com"
    </Module>
</Plugin>

demoserver1.tls-cert-monitor.gauge-github.aaakk.us.kg 7848249 1518710150
demoserver1.tls-cert-monitor.gauge-google_com 5848449 1518710151

Test config using collectd -T -C collectd.conf.

Resources

• https://collectd.org/documentation/manpages/collectd-python.5.shtml
• https://collectd.org/documentation/manpages/collectd-python.5.shtml#dispatch
• https://serverlesscode.com/post/ssl-expiration-alerts-with-lambda/