Plugins » Katello

When you want to add "Content Credentials" (as it is named in the webui) via hammer, you add them via "hammer gpg". Even for SSL-Certs + SSL-Keys + SSL-CAs.
It's nice, that you don't have to add the type and it recongnizes the type correctly, but i think the name is a bit confusing in hammer, when you want to add SSL-Stuff.

Suggestion:
Just rename it, like in the webui