A dogtag replica file is created as usual. When the replica is installed dogtag is optional and not installed by default. Adding the --setup-ca option will configure it when the replica is installed. A new tool ipa-ca-install will configure dogtag if it wasn't configured when the replica was initially installed. This moves a fair bit of code out of ipa-replica-install into installutils and cainstance to avoid duplication. https://fedorahosted.org/freeipa/ticket/1251