Install plugins

Install plugins with the plugin tool provided by Elasticsearch. For example, the command below will install the ICU plugin plugin:

$ cd /opt/bitnami/elasticsearch
$ sudo bin/elasticsearch-plugin install analysis-icu

Once the plugin has been installed, change the user and group ownership of the plugin directory to the elasticsearch user. For example:

$ sudo chown -R elasticsearch:elasticsearch /opt/bitnami/elasticsearch/plugins/analysis-icu/