To Reproduce Steps to reproduce the behavior:

1. Deploy control plane
2. Deploy RHEL 9.4 on compute nodes
3. Disable ipv6 on the compute node by running:
   grubby --update-kernel=ALL --args="ipv6.disable=1"
4. Reboot compute node
5. Deploy data plane as instructed in section 5.3 here
6. Deployment fails as ipv6 cannot be configured:

   TASK [osp.edpm.edpm_iscsid : Generate a unique IQN] ****************************
   task path: /usr/share/ansible/collections/ansible_collections/osp/edpm/roles/edpm_iscsid/tasks/configure.yml:33
   fatal: [rhoso-lab-m4cdw-compute-0]: FAILED! => {"changed": false, "msg": "Container iscsid_config exited with code 126 when runed", "stderr": "Error: netavark: Sysctl error: no such sysctl: net.ipv6.conf.all.forwarding\n", "stderr_lines": ["Error: netavark: Sysctl error: no such sysctl: net.ipv6.conf.all.forwarding"], "stdout": "", "stdout_lines": []}
   

Expected behavior

• DataPlane is deployed successfully

Bug impact

• This bug blocks deployment of RHOSO at the customer, unless manually worked around

Known workaround

• Manually edit /usr/share/ansible/collections/ansible_collections/osp/edpm/roles/edpm_podman/templates/podman_network_config.j2, removing the ipv6 subnet from the list, and also changing ipv6_enabled to False.

Additional context

• Problem seems to come from podman_network_config.j2
• Extended details on the case attached