The upgrade from Tomcat 8 to Tomcat 9 is part of the upgrade to Abiquo 5.2.x and environments using HTTPS-SSL between the Tomcat servers. ( See Configure Abiquo Tomcat with HTTPS for Remote RS).
As part of the upgrade when using HTTPS-SSL between Tomcat servers:
- The Catalina connector for HTTPS will be lost on upgrade
- The new secretRequired option is not present
- AJP Connector on Tomcat9 in Tomcat 9 won't allow external connections by default.
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Before you start the upgrade, do these steps.
On each tomcat Tomcat server, from the /opt/abiquo/tomcat/conf folder, back up the server.xml files. For example, for the API server
Code Block # cd /opt/abiquo/tomcat/conf # cp server.xml ~/server.api.backup.xml
You will need to restore and modify these files after the upgrade.
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