I have started learning Ceph and got an error too quickly. I have spent about 4 days to solve the problem but unfortunately without success.
I read official documentation about quick ceph deploy and I get always the same error in 5th point.
This just do not work when I setup public_network in ceph.conf:
ceph-deploy mon create-initial
because ceph-deploy gatherkeys do not work.
It always show me the same error (I have tried on Debian 8.2 and CentOS 7):
[ceph_deploy.gatherkeys] [WARNIN] Unable to find /etc/ceph/ceph.client.admin.keyring on node1 [ceph_deploy] [ERROR ] KeyNotFoundError: Could not find keyring file: /etc/ceph/ceph.client.admin.keyring on host node1
I have 4 nodes like in tutorial:
admin-node, node1, node2, node3
All have ssh conection without password.
My steps:
1. ceph-deploy new node1 (OK)
2. cange ceph.conf in my-cluster folder:
osd_pool_default_size = 2
public_network = 10.0.0.0/24
(OK)
3. ceph-deploy install admin-node node1 node2 node3 (OK)
4. ceph-deploy mon create-initial (ERROR)
Can somebody explain me what am I doing wrong?
It has been happened because in the ceph.conf you must set mon ip in the public network not in the private. And I had mon ip : 192.168.57.101 (which is the private) but public network was: 10.0.2.0/24.