6. install Metricbeat
curl -L -O https://artifacts.elastic.co/downloads/beats/metricbeat/metricbeat-7.6.1-x86_64.rpm
sudo rpm -vi metricbeat-7.6.1-x86_64.rpm
curl -L -O https://artifacts.elastic.co/downloads/beats/metricbeat/metricbeat-7.6.1-x86_64.rpm
sudo rpm -vi metricbeat-7.6.1-x86_64.rpm