Roles to setup Cockpit on RHEL 8 beta (this one works on RHEL 7 as well!). Inventory consists of 3 hosts across 2 groups, master and nodes.
Hosts must be registered first using subscription-manager. cockpit.yml calls roles for common tasks and master which adds hosts in nodes group to cockpit-dashboard on the master node using a template and writes their ssh pubkeys to a known_hosts file for Cockpit.
This automates adding all hosts to a single Cockpit management instance!
The firewall rule for tcp/9090 only needs to be added on the master where cockpit-dashboard is installed. Metrics and management of the other nodes are done through ssh so cockpit.socket doesn't need to be enabled/started on the nodes group.
