Quick documentation on using CONF file external to a JAR

[igozali]

Hi guys,

I've been scratching my head and trying to find documentation on how to do this.

Basically, I have a standalone, executable JAR which contains a reference.conf in its src/main/resource folder.

I want to be able to pass in an application.conf that is external to this JAR and overrides the resource.conf.

Here's some examples of how I think I should be doing it:

$ ls
standalone.jar    application.conf

$ java -cp standalone.jar com.standalone.Main
Option 1. Running com.standalone.Main with reference.conf included inside the JAR.

$ java -cp standalone.jar:application.conf com.standalone.Main
Option 2. Running com.standalone.Main with application.conf inside the classpath

$ java -cp standalone.jar com.standalone.Main application.conf
Option 3. Running com.standalone.Main with application.conf passed in through command-line arguments

It would be great if you can help me with this, or provide documentation on how to do this, since this seems like something a lot of people might want to do?

Thanks in advance!

[havocp]

I think you just want -Dconfig.file=/wherever/application.conf or -Dconfig.resource=application.conf as described at https://github.com/typesafehub/config#standard-behavior ?

[igozali]

Thank you! That is it! :)

—

Regards,

Ivan Gozali

On Wed, Sep 11, 2013 at 5:54 AM, Havoc Pennington
[email protected] wrote:

I think you just want -Dconfig.file=/wherever/application.conf or -Dconfig.resource=application.conf as described at https://github.com/typesafehub/config#standard-behavior ?

Reply to this email directly or view it on GitHub:
#84 (comment)

[gratner]

@havocp - The above doesn't work for me. I have an app packaged with sbt-assembly. Is there a way to still pass in an external config?

[havocp]

Should be the same. Maybe ask on stackoverflow, that's a better place for support since it's easier for others to help and easier for future searches to find. I would include though what you are trying exactly, and exactly what goes wrong. The usual problem with sbt-assembly is that filename collisions cause some of the .conf files to be lost from the combined jar. There should be nothing different about an sbt-assembly app unless that has happened.

[gratner]

Thanks, posted this
http://stackoverflow.com/questions/31276537/command-line-arguments-not-working-for-sbt-assembly-jars

[raghu588]

I need to pass a bunch of configuration files in a folder. How do i pass all files at a time externally to a JAR.
Tried with java -Dconfig.file=home/resources/* but not worked.Please advise. @gratner @havocp

[havocp]

I don't think there's a feature for loading a directory; you'd have to do something like make a .conf file that includes everything in the directory