ACME Plugin doesn't renew certificates

[yaser-aibees]

Is there an existing issue for this?

• I have searched the existing issues

Kong version ($ kong version)

Kong Enterprise 3.8.0.0

Current Behavior

I have enabled ACME plugin on Global mode. It has issued the certificates for the first time but cannot re-issue them again.

Expected Behavior

Certificates should be re-issued in the expected time before expiring.(14 days)

Steps To Reproduce

No response

Anything else?

I am using single node Kong instance to control my APIs. Traffics from Cloudflare come directly to this server on port 443 and then proxies to a gateway which sits in front of a Kubernetes cluster.
Here are the port definitions on Kong:

Kong Manager Port 8002
Kong Manager SSL Port 8445
Proxy Port 80
Proxy SSL Port 443

Since ACME plugin only supports http-01 challenge, I was wondering if this behavior has anything to do with my port mappings.

[Oyami-Srk]

Could you please tell us your configurations and the results of endpoint /acme/certificates? Is there any error log for Kong?