The command bin/plugin has been renamed to bin/elasticsearch-plugin. The structure of the plugin ZIP archive has changed. All the plugin files must be contained in a top-level directory called elasticsearch. If you use the gradle build, this structure is automatically generated.bin/plugin command는 bin/elasticsearch-plugin 으로 이름이 변경되었다. plugin ZIP archive의 구조가 변경되었다. 모든 plugin 파일은 elasticsearch 라..