SOLR-17353 Remove gosu binary from the Docker image#4285
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https://issues.apache.org/jira/browse/SOLR-17353
Removes the
gosubinary from the Solr Docker image.gosuis a privilege-dropping helper that was installed in the image but is not used by Solr's own Docker scripts (docker-entrypoint.sh). Removing it reduces the image's attack surfaceand eliminates an unnecessary dependency.
Changes
Dockerfile.body.template: removedgosufrom theapt-get installlinesolr/docker/tests/cases/gosu/: deleted the test that validatedgosuwas present and functional in the imagemajor-changes-in-solr-10.adoc: added a Docker section under the Solr 10.1 upgrade notes describing the removal and migration optionschangelog/unreleased/SOLR-17353-remove-gosu-from-docker.yml: changelog entry for this removalIn the release note, we point to three alternative tools that are already present in solr's image that can do the same thing.
Supercedes #4273 which tried to upgrade gosu