Drone build failing on clone step with Kubernetes runner

Trying to setup a pipeline that simply builds and pushes docker container but it fails with the following error on the clone step. Any idea what might cause this. I’m running drone in a KIND provisioned on premise cluster.
Error: fatal: unable to access ‘https://bitbucket.org/organization/app-repo.git/’: Failed to connect to bitbucket.org port 443: Connection refused

This looks like a networking or firewall issue. See https://community.atlassian.com/t5/Bitbucket-questions/Bitbucket-Connection-Refused-443/qaq-p/721488