AWT is not properly configured on this server. Perhaps you need to run your container with "-Djava.awt.headless=true"? See also: https://www.jenkins.io/redirect/troubleshooting/java.awt.headless
Jenkins : Jenkins got java.awt.headless problem
sudo yum install fontconfig
WARNING [Finalizing set up] hudson.model.UpdateCenter.updateDefaultSite Upgrading Jenkins. Failed to update the default Update Site 'default'. Plugin upgrades may fail.
javax.net.ssl.SSLException: No PSK available. Unable to resume.
networking - javax.net.ssl.SSLException: No PSK available. Unable to resume - Stack Overflow
