Except if you call java -jar catalina_home/lib/prdtartup.jar which creates
a temp file used instead of setenv (just a generator) so you can read it in
plain java and launch tomcat only later to ensure it respects all props.
This small main would do anything except suceed or fail.


Le ven. 28 déc. 2018 19:41, Christopher Schultz <
ch...@christopherschultz.net> a écrit :

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> Romain,
>
> On 12/28/18 10:10, Romain Manni-Bucau wrote:
> > Hi
> >
> > As a user it is nicer to be able to set all system properties in
> > the same place and catalina code is too late for some of them like
> > log manager. Why not having a conf/system.properties handled by
> > scripts and in fallback by Tomcat (embedded case)? Would just be a
> > more natural way to write it than setenv.
>
> Shell-script processing of .properties files will likely be hairy.
>
> I have seen systems like install4j which use "vmoptions" files which
> essentially allow you to set system properties without actually typing
> a huge line of text with "-Dkey=value" but instead have "key=value" on
> separate lines. I suspect they do not adhere to the full "properties"
> specification (e.g. ignorable whitespace, line-continuation, \u
> character processing, etc.).
>
> It we defined something that "wasn't a properties file, but looks like
> a properties file", then maybe it would be okay. It could be processed
> easily like this on systems with proper scripting capabilities:
>
> sysprops=$( echo $( sed -e 's/^/"-D/' -e 's/$/"/'
> conf/system.not-properties $) $)
>
> ...
>
> java [script properties] $sysprops
>
> You still have the awful problem of quoting, though.
>
> - -chris
>
> > Le 28 déc. 2018 16:07, "Christopher Schultz"
> > <ch...@christopherschultz.net> a écrit :
> >
> > All,
> >
> > Someone asked this question on SO recently:
> > https://stackoverflow.com/questions/53921375/tomcat-overriding-catalin
> a-
> >
> >
> properties-from-commandline/53952396#53952396
> > <https://stackoverflow.com/questions/53921375/tomcat-overriding-catali
> na-properties-from-commandline/53952396#53952396
> <https://stackoverflow.com/questions/53921375/tomcat-overriding-catalina-properties-from-commandline/53952396#53952396>
> >
> >
> >  TLDR: this person wants to set system properties in
> > catalina.properties but be able to "override" those from the
> > command-lin e.
> >
> > The fix would be trivial: just don't clobber the value of any
> > existing system property in CatalinaProperties when copying the
> > properties from the file to the live system properties.
> >
> > I'm wondering if anyone can think of any security issues with
> > doing that. Presumably, if a user can launch Tomcat, they can set
> > system properties. However, it's possible that a user might have
> > the right to *launch* Tomcat, but not reconfigure it (e.g.
> > read-only catalina.properties).
> >
> > That could easily be solved by using a catalina.properties-only
> > setting like "catalina.properties.noclobber.system.properties=true"
> > or something like that.
> >
> > What does everyone think?
> >
> > Thanks, -chris
> >
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> >
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