stop.sh: call cephadm rm-cluster only if FSID is not empty

there are chances that there is no cluster running at that moment,
so we could have failure messages like

[errno 2] RADOS object not found (error connecting to the cluster)
usage: cephadm rm-cluster [-h] --fsid FSID [--force] [--keep-logs]
                          [--zap-osds]
cephadm rm-cluster: error: argument --fsid: expected one argument

in that case, better off not failing this bash function, as this
is not a fatal failure.

See-also: https://tracker.ceph.com/issues/57834
Signed-off-by: Kefu Chai <tchaikov@gmail.com>

diff --git a/src/stop.sh b/src/stop.sh
index dce34b6513f1bdfae3e73985873dcd958dd12575..6cab228ef7b3b9ff9201876ab1f20908c127d0b7 100755 (executable)
--- a/src/stop.sh
+++ b/src/stop.sh
@@ -77,8 +77,10 @@ maybe_kill() {
 }
 
 do_killcephadm() {
-    FSID=$($CEPH_BIN/ceph -c $conf_fn fsid)
-    sudo $CEPHADM rm-cluster --fsid $FSID --force
+    local FSID=$($CEPH_BIN/ceph -c $conf_fn fsid)
+    if [ -n "$FSID" ]; then
+        sudo $CEPHADM rm-cluster --fsid $FSID --force
+    fi
 }
 
 do_umountall() {