doc/cephadm: recommend redeploying monitoring stack daemon after changing image

Fixes: https://tracker.ceph.com/issues/50687
Signed-off-by: Adam King <adking@redhat.com>
(cherry picked from commit 9be84658fbd5a51f631fcda050811ca0113fbea1)

diff --git a/doc/cephadm/monitoring.rst b/doc/cephadm/monitoring.rst
index fd7ac64df6cb0b565fac22fc033b2bca7a86de77..7de9e75feafead9d4ee46beb25bba514f82f34ec 100644 (file)
--- a/doc/cephadm/monitoring.rst
+++ b/doc/cephadm/monitoring.rst
@@ -153,6 +153,17 @@ For example
 
      ceph config set mgr mgr/cephadm/container_image_prometheus prom/prometheus:v1.4.1
 
+If there were already running monitoring stack daemon(s) of the type whose
+image you've changed, you must redeploy the daemon(s) in order to have them
+actually use the new image.
+
+For example, if you had changed the prometheus image
+
+.. prompt:: bash #
+
+     ceph orch redeploy prometheus
+
+
 .. note::
 
      By setting a custom image, the default value will be overridden (but not