JFrog Pipelines services will not allow a SSL/TLS connection with an external service without a validation of the trusted CA certificate.
With TLS enabled, every JFrog Pipelines service must trust Access as a Certificate Authority. Access shares the CA certificate with all the Pipelines nodes. However additional services in Pipelines need to trust Access as well. The trust between a Pipelines service and Access is created by copying the ca.crt from the Artifactory server under $JFROG_HOME/artifactory/var/etc/access/keys to any Pipelines service node you would like to set trust with under $JFROG_HOME/<product>/var/etc/security/keys/trusted.
Enable TLS in Artifactory. For more information, see Managing TLS Certificates.
Restart Artifactory after enabling TLS.