Thanks for all the debugging Christian! Very useful :)
I also did some investigation and this behavior is expected by the
Debian maintainers. According to the maintainers the current
implementation does not support using copyXML=true, because in this case
when the app is deployed the context file in APP/META-INF/context.xml is
copied into /etc/tomcat8/Catalina/localhost. The Debian maintainers
believe the copyXML=true option is not that useful and they would accept
a good use case to justify making /etc/tomcat8/Catalina/localhost
writable by tomcat. They also acknowledged that tomcat should not create
files in /etc during runtime, so they changed the way it works in
tomcat9.
The use case Arnaud presented in the bug description was very well
defined and it is reproducible (thanks!). However, there is a simple
workaround for this in Bionic if you do not use the admin web interface
to deploy it. You can edit the hello.xml file in the root of the
attached zip file and leave it like this:
<?xml version="1.0" encoding="UTF-8"?>
<Context docBase="/tmp/hello.war">
<Parameter name="helloMessage" value="Everything is ok" override="1" />
</Context>
Note I added docBase="/tmp/hello.war" in the Context tag. After that you
copy it to /etc/tomcat8/Catalina/localhost/ and restart tomcat. Then you
can access https://IP_ADDRESS:8080/hello/hello and see "Everything is
ok".
Feel free to engage with the Debian maintainers on this discussion. If
you come up with a solution we can discuss about a SRU.
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https://bugs.launchpad.net/bugs/1820288
Title:
Tomcat Web Application Manager does not copy context configuration
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