rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

[elasticsearch-6.x]

name=Elasticsearch repository for 6.x packages

baseurl=https://artifacts.elastic.co/packages/6.x/yum

gpgcheck=1

gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch

enabled=1

autorefresh=1

type=rpm-md

sudo yum install elasticsearch