To Reproduce Steps to reproduce the behavior:

1. Create packages and images mirror for air gapped environment.
2. Create Control plane as doc.
3. Try to apply OpenStackDataPlaneDeployment using insecure mirror (edpm_container_registry_insecure_registries).
4. See error below at task "Perform container registry login".

 "Error: authenticating creds for \"example.com:8888\": pinging container registry example.com:8888: Get \"https://example.com:8888/v2/\": tls: failed to verify certificate: x509: certificate signed by unknown authority"

Expected behavior

• Dataplane created
• Clear instructions on how to use insecure registry/mirror.

Device Info (please complete the following information):

• OS Version:RHEL9.4
• RHOSO 18.0.6-20250403.1 (Operator Version: 1.0.8)
• OpenShift Cluster Version: 4.16.21

Bug impact

• Customer is unable to deploy the  disconnected environment.

Known workaround

• Tried to set parameters below without success.
  • edpm_container_registry_insecure_registries
  • edpm_container_registry_login
  • edpm_podman_disconnected_ocp
  • edpm_podman_registries

Additional context

• Checked the file "/etc/containers/registries.conf" of compute node and it contains the mirror but not the insecure parameter.
• Some OCP services contains the same error about the registry certificate.