ansible-inventory --list | jq -r 'map_values(select(.hosts != null and (.hosts | contains(["myhost"])))) | keys[]'

kafka_host: "[{{ groups['KAFKA'] | map('extract', hostvars, 'inventory_hostname') | map('regex_replace', '^', '\"') | map('regex_replace', '\\\"', '\"') | map('regex_replace', '$', ':'+ kafka_port +'\"') | join(', ') }}]"

elasticsearch_host: "{{ groups['ELASTICSEARCH'] | map('extract', hostvars, 'inventory_hostname') | map('regex_replace', '^', '\"') | map('regex_replace', '\\\"', '\"') | map('regex_replace', '$', ':'+ elasticsearch_port +'\"') | join(', ') }}"