Description of problem: When upgrading a containerized (podman) cluster from RHCS 4.0 to RHCS 4.1 on RHEL 8 the upgrade fails when reaching the OSD's with the following error: TASK [ceph-container-common : set_fact ceph_osd_image_repodigest_before_pulling] ************************************************************************************************************************************************************* Friday 05 June 2020 19:37:35 +0530 (0:00:00.070) 0:08:21.175 *********** fatal: [ceph4node1.example.com]: FAILED! => msg: |- The task includes an option with an undefined variable. The error was: None has no element 0 The error appears to be in '/usr/share/ceph-ansible/roles/ceph-container-common/tasks/fetch_image.yml': line 137, column 3, but may be elsewhere in the file depending on the exact syntax problem. The offending line appears to be: - name: set_fact ceph_osd_image_repodigest_before_pulling ^ here The monitor containers upgrade successfully, we do not fail until the OSD's are attempted to be upgraded. Cluster was installed on RHCS 4.0 3 days ago following the Ceph documentation when 4-20 image was latest. Upgrade was attempted following the documentation without diverting, and the upgrade failed at this step. A customer has encountered this issue as well as a field resource in his home lab, so this is 3rd reproduction so far reported.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:3003