Ceph delete client.admin accidently

Question

While learning Ceph , I accidently delete client.admin by using

ceph auth del client.admin 

Now I get

client.admin authentication error (1) Operation not permitted.Error connecting to cluster: PermissionError

all the time.

Is there a way to recover or recreate a new client.admin?
I've tried

ceph auth import -i /etc/ceph/ceph.client.admin.keyring and ceph add client.admin

It didn't work for me.

Answer 1

try to connect with mon keyring on ceph-node-1

ceph -n mon. --keyring /var/lib/ceph/mon/ceph-node-1/keyring get-or-create client.admin mon 'allow *' mds 'allow *' mgr 'allow *' osd 'allow *'

then update /etc/ceph/ceph.client.admin.keyring