Add "auth: error parsing file or auth: failed to load" (#632)

Signed-off-by: Christian Berendt <[email protected]>

docs/guides/troubleshooting-guide/openstack.md

@@ -26,3 +26,25 @@ testbed-node-0>>> restart kolla_toolbox
 kolla_toolbox
 testbed-node-0>>>
 ```
+
+## Ceph connections not working 
+
+* Problem: `auth: error parsing file` or `auth: failed to load`
+
+  ```
+  $ docker exec -ti nova_compute ceph -k /etc/ceph/ceph.client.nova.keyring -n client.nova -s
+  2024-06-28T06:43:05.660+0000 7d5df526b640 -1 auth: error parsing file /etc/ceph/ceph.client.nova.keyring: cannot parse buffer: Malformed input
+  2024-06-28T06:43:05.660+0000 7d5df526b640 -1 auth: failed to load /etc/ceph/ceph.client.nova.keyring: (5) Input/output error
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: error parsing file /etc/ceph/ceph.client.nova.keyring: cannot parse buffer: Malformed input
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: failed to load /etc/ceph/ceph.client.nova.keyring: (5) Input/output error
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: error parsing file /etc/ceph/ceph.client.nova.keyring: cannot parse buffer: Malformed input
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: failed to load /etc/ceph/ceph.client.nova.keyring: (5) Input/output error
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: error parsing file /etc/ceph/ceph.client.nova.keyring: cannot parse buffer: Malformed input
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 auth: failed to load /etc/ceph/ceph.client.nova.keyring: (5) Input/output error
+  2024-06-28T06:43:05.664+0000 7d5df526b640 -1 monclient: keyring not found
+  [errno 5] RADOS I/O error (error connecting to the cluster)
+  ```
+
+  Solution:
+
+  Check your Ceph keyfiles. Probably a missing newline at the EOF.