ensure host name set correctly on cluster creation
ensure host name set correctly on cluster creation

rancher/rancher#10863

westlywright/ui,rancher/ui,rancherio/ui,lvuch/ui,lvuch/ui,rancher/ui,rancherio/ui,vincent99/ui,lvuch/ui,rancherio/ui,pengjiang80/ui,rancher/ui,vincent99/ui,pengjiang80/ui,vincent99/ui,westlywright/ui,pengjiang80/ui,westlywright/ui