CI: cephadm - stop copying keyrings

Change-Id: I9ce8727e0ed04a7193e3257ba5ee97954b2532b7

tests/get_logs.sh

@@ -89,7 +89,7 @@ copy_logs() {
     # cephadm related logs
     mkdir -p ${LOG_DIR}/ceph
     sudo cp /etc/ceph/ceph.conf ${LOG_DIR}/ceph
-    sudo cp -Rf /var/run/ceph/* ${LOG_DIR}/ceph
+    sudo cp /var/run/ceph/*/cluster.yml ${LOG_DIR}/ceph/cluster.yml
     sudo cephadm shell -- ceph --connect-timeout 5 -s > ${LOG_DIR}/ceph/ceph_s.txt
     sudo cephadm shell -- ceph --connect-timeout 5 osd tree > ${LOG_DIR}/ceph/ceph_osd_tree.txt