After mirroring the ansible-automation-platform-operator and ansible-cloud-addons-operator images using an ImageSetConfiguration with oc-mirror, attempts to update the local copy using the same workspace at a later date fail with the following error:

error: error generating diff: error including items:
[[package="ansible-automation-platform-operator" channel="stable-2.4-cluster-scoped"] bundles do not exist in channel: versions=["0.0.0"], [package="ansible-cloud-addons-operator" channel="stable-2.4-cluster-scoped"] bundles do not exist in channel: versions=["0.0.0"]]

Looking up the error message in the oc-mirror source, it was noted a recent change was made to handle version strings that contain a hyphen as part of OCPBUGS-588, however as the minVersion appears to be working in this issues case, it could be a new/different bug.

Having said that, the affected images do have a hyphenated version:

$ oc-mirror list operators --catalog registry.redhat.io/redhat/redhat-operator-index:v4.12 --package ansible-automation-platform-operator
NAME                                  DISPLAY NAME                 DEFAULT CHANNEL  
ansible-automation-platform-operator  Ansible Automation Platform  stable-2.4-cluster-scoped  
  
PACKAGE                               CHANNEL                    HEAD
ansible-automation-platform-operator  stable-2.3                 aap-operator.v2.3.0-0.1694717818
ansible-automation-platform-operator  stable-2.3-cluster-scoped  aap-operator.v2.3.0-0.1694718064
ansible-automation-platform-operator  stable-2.4                 aap-operator.v2.4.0-0.1695086513
ansible-automation-platform-operator  stable-2.4-cluster-scoped  aap-operator.v2.4.0-0.1695086882  
  
$ oc-mirror list operators --catalog registry.redhat.io/redhat/redhat-operator-index:v4.12 --package ansible-cloud-addons-operator
NAME                           DISPLAY NAME          DEFAULT CHANNEL
ansible-cloud-addons-operator  Ansible Cloud Addons  stable-2.4-cluster-scoped  
  
PACKAGE                        CHANNEL                    HEAD
ansible-cloud-addons-operator  stable-2.3-cluster-scoped  aca-operator.v2.3.0-0.1689662666
ansible-cloud-addons-operator  stable-2.4-cluster-scoped  aca-operator.v2.4.0-0.1695086173

Specifying a new local mirror location while running from the same workspace directory still encounters the issue. It was also noted that the .metadata.json file created in the workspace directory modifies the version string, replacing the hyphen with a plus, ie the aap-operator version "2.4.0-0.1695086882" "2.4.0+0.1695086882"

4.12

The customer can reliably reproduce using their workspace, independently of where they are mirroring to, or whether they use the --ignore-history or --skip-metadata-check arguments

1. Use oc-mirror with an imagesetconfig that contains the ansible operators to create a mirror 
2. Wait a few days
3. Run the same oc-mirror commands with the same imagesetconfig in the same workspace to update the mirror

oc-mirror fails to update the mirror, with the error:


error: error generating diff: error including items:
[[package="ansible-automation-platform-operator" channel="stable-2.4-cluster-scoped"] bundles do not exist in channel: versions=["0.0.0"], [package="ansible-cloud-addons-operator" channel="stable-2.4-cluster-scoped"] bundles do not exist in channel: versions=["0.0.0"]]

oc-mirror updates the local directory which can then be used to update the disconnected mirror

A workaround for the issue was found by specifying a minVersion for the impacted images in the ImageSetConfiguration, however this is not an immediately obvious solution to users.