Issues with IdP 5.0 upgrade

[Peter Schober]

Diego Figueroa via users <users at shibboleth.net> [2024-05-13 19:30 CEST]:
> I started Tomcat after copying the new war file to the webapps
> folder and I am getting no errors in catalina.out and only this
> warning:

Why copy the war file somewhere else? Just point Tomcat to it with a
Deployment Context Fragment e.g. /etc/tomcat10/Catalina/localhost/idp.xml

<Context docBase="/opt/shibboleth-idp/war/idp.war"
    privileged="true"
    antiResourceLocking="false"
    swallowOutput="true">
    <JarScanner>
      <JarScanFilter defaultTldScan="false" />
    </JarScanner>
</Context>

> However, all the IdP logs are empty and if I try to hit any of the
> known IdP URLs (e.g., idp/shibboleth) I get a 404 from Tomcat even
> though the IdP war file was expanded.

OS / distribution and version?
Tomcat distribution and version?
File system permissions? Account Tomcat / the JVM runs as?
SELinux?
Systemd protections?

-peter