diff --git a/infrastructure-playbooks/cephadm-adopt.yml b/infrastructure-playbooks/cephadm-adopt.yml
index 7b4adc5d82..60707daf0b 100644
--- a/infrastructure-playbooks/cephadm-adopt.yml
+++ b/infrastructure-playbooks/cephadm-adopt.yml
@@ -191,7 +191,7 @@
 
     - name: set_fact ceph_cmd
       set_fact:
-        ceph_cmd: "{{ container_binary + ' run --rm --net=host -v /etc/ceph:/etc/ceph:z -v /var/lib/ceph:/var/lib/ceph:z -v /var/run/ceph:/var/run/ceph:z --entrypoint=ceph ' + ceph_docker_registry + '/' + ceph_docker_image + ':' + ceph_docker_image_tag if containerized_deployment | bool else 'ceph' }} --cluster {{ cluster }}"
+        ceph_cmd: "{{ container_binary + ' run --rm --net=host -v /etc/ceph:/etc/ceph:z -v /var/lib/ceph:/var/lib/ceph:ro -v /var/run/ceph:/var/run/ceph:z --entrypoint=ceph ' + ceph_docker_registry + '/' + ceph_docker_image + ':' + ceph_docker_image_tag if containerized_deployment | bool else 'ceph' }} --cluster {{ cluster }}"
 
     - name: get current fsid
       command: "{{ ceph_cmd }} fsid"