Bamboo: Promoting a plan variable as metadata
Asked by Dieter Bogdoll:

Hi all,

I would like to use the maven version number during a maven release to be displayed in the metadata tab of bamboo. How do I do that?

On the metadata tab it says "You can specify your own metadata in the build process via add-ons.". But with this URL [https://marketplace.atlassian.com/search?product=bamboo\&query=metadata](https://marketplace.atlassian.com/search?product=bamboo&query=metadata) I can't find anything related to that.

Also I couldn't imagine that is that hard it is to specify own metadata within a Bamboo job.

Best regards,  
Dieter


Answers:
author: Jeremy Owen
body: Hey Dieter,

You can write out the maven variable number to a properties file during the build and use the **Inject Bamboo variables** task to read it back in:

* [Configuring a variables task](https://confluence.atlassian.com/bamboo/configuring-a-variables-task-687213475.html)

Setting the scope of the variables to **Result**will ensure that anything is injected is available on the metadata tab of the job (also accessible by other stages in the plan, and releases created from that build result).

Hope this helps. :)

comments: author: Dieter Bogdoll
body: Hi Jeremy,

thanks for your response, that would help indeed. But I could not confirm that this is working for me. I am using the "Maven POM Value Extractor configuration" for fetching the GAV values and are storing them as Variable Type "Result".

On my metadata tab I don't see any such bamboo.maven.\* variable.

Since which Bamboo version is this supported? I'm currently using 6.2.5 build 60212.

Here are the logs with respect to the POM Extractor:

```
simple 09-Jul-2018 07:21:17 Starting task 'Maven POM Value Extractor' of type 'com.davidehringer.atlassian.bamboo.maven.maven-pom-parser-plugin:maven-pom-parser-plugin'simple 09-Jul-2018 07:21:17 Extracted groupId from POM. Setting RESULT variable maven.groupId to [XXXXXXXXXX]simple 09-Jul-2018 07:21:17 Extracted artifactId from POM. Setting RESULT variable maven.artifactId to [XXXXXXXXXX]simple 09-Jul-2018 07:21:17 Extracted version from POM. Setting RESULT variable maven.version to 0.0.2-SNAPSHOTsimple 09-Jul-2018 07:21:17 Finished task 'Maven POM Value Extractor' with result: Success
```

And here is the metadata tab of my build:

![metadata.png](https://community.atlassian.com/t5/image/serverpage/image-id/26397i9BF0BF5C0D16255A/image-size/large?v=v2&px=999 "metadata.png")


author: Jeremy Owen
body: I think that's the Metadata tab for the plan. It *should* be in the metadata tab for the Job. :)

To do that, from the same screen; click the expander on the left hand side of the UI (it looks like a little \>) to expand all the Jobs in the Build Result and then select the Job which has the POM Value Extractor \> Metadata. Make sure to then scroll all the way down the page to the Variables section.


author: Dieter Bogdoll
body: Hi Jeremy,

thanks for this tipp. I always have overseen that arrow.

(For me the arrow is on the left side though.)

Thanks a lot,  
Dieter


author: Jeremy Owen
body: You're most welcome and my apologies. I certainly *meant* to say left hand side. I'll edit my response to correct it.


Tags: metadata