Fix name of datanode in-memory internal appender

[todvora]

/nocl internal dev log4j config fix

Could be part of https://github.com/Graylog2/graylog-plugin-enterprise/issues/13625

Description

Corrected internal appender name for datanode logs

How Has This Been Tested?

Manually. Set this JVM option for your datanode and try generating support bundle.

-Dlog4j.configurationFile=file:///home/you/projects/graylog-project-repos/graylog2-server/data-node/config/log4j2.xml

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (non-breaking change)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have requested a documentation update.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[todvora]

@bernd
The build is now failing with

/var/lib/gems/2.7.0/gems/fpm-cookery-0.37.0/lib/fpm/cookery/utils.rb:17:in `safesystem': 'system(["patch -p0 --batch < /vagrant/recipes/graylog-datanode/patches/log4j2.xml.patch"])' failed with error code: 1 (RuntimeError)

I guess we'll need to adapt this patch: https://github.com/Graylog2/fpm-recipes/blob/7.1/recipes/graylog-datanode/patches/log4j2.xml.patch , as the graylog-internal-logs is now called datanode-internal-logs, right?

[bernd]

@bernd The build is now failing with

/var/lib/gems/2.7.0/gems/fpm-cookery-0.37.0/lib/fpm/cookery/utils.rb:17:in `safesystem': 'system(["patch -p0 --batch < /vagrant/recipes/graylog-datanode/patches/log4j2.xml.patch"])' failed with error code: 1 (RuntimeError)

I guess we'll need to adapt this patch: https://github.com/Graylog2/fpm-recipes/blob/7.1/recipes/graylog-datanode/patches/log4j2.xml.patch , as the graylog-internal-logs is now called datanode-internal-logs, right?

Aye. Let me know when you merge this, so I can adjust the patch.

[bernd]

Graylog2/fpm-recipes#151