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4165b26a04
Docker container lifecycle management (mgt=docker, mkdocker, rmdocker, lsdocker) was added in 2015-2016 as an experiment targeting Docker API v1.22 on Ubuntu only. Documentation and man pages were deliberately removed in 2019 (PRs #6222 and #6324) with the original developer's approval, noting that "the interface of Docker has become very simple right now, so there is no value for xCAT to offer such functions." The plugin was still being shipped but has had no functional code changes since April 2016, was never listed as a valid mgt value in Schema.pm, and no user ever filed an issue about it. Removed: - xCAT-server/lib/xcat/plugins/docker.pm (1,142 lines) - xCAT/postscripts/setupdockerhost - xCAT-server/share/xcat/scripts/setup-dockerhost-cert.sh - xCAT-test/autotest/testcase/dockercommand/ (test cases) - Docker attribute definitions in Schema.pm - Client symlinks (mkdocker, rmdocker, lsdocker) - Usage entries and dockerhost cert handling in credentials.pm - Docker attribute documentation in man7 pages The "Running xCAT in Docker" documentation (dockerized_xcat/) is retained as it documents containerizing xCAT itself, not the removed mgt=docker feature. Closes #7518