Support SSL certificate validation when using https pagerduty_proxy

[kexin-zhai]

When we tried to trigger a pagerduty alert by hitting https://<hostname>:<port> pagerduty_proxy, we ran into SSLCertVerificationError.

elastalert Error while running alert pagerduty: Error posting to pagerduty: HTTPSConnectionPool(host='events.pagerduty.com', port=443): Max retries exceeded with url: /v2/enqueue (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:992)')))

When we pass a CA cert bundle to slack_ca_certs to trigger slack alerts hitting the same proxy URL, elastalert works as expected.
I was wondering if we may have a plan to add a pagerduty_ca_certs option to validate the SSL certificate when using pagerduty proxy.

Thanks!

[jertel]

Are you interested in submitting a PR?

[kexin-zhai]

Yeah, we will plan on contributing a PR for it.

[kexin-zhai]

PR is created and ready for review for this discussion 🙏 : #1418