ceph-deploy osd prepare node-... :/dev/vdc... returned 1 instead of one of [0]

[Aleksei Stepanov]

 Steps to reproduce:
            1. Create cluster
            2. Add 1 node with controller+ceph-osd role
            3. Add 2 nodes with controller+ironic+ceph-osd role
            4. Add 1 node with compute role
            5. Add 1 nodes with ironic role
            6. Deploy the cluster
            7. Upload image to glance
            8. Enroll Ironic nodes
            9. Boot nova instance
            10. Check Nova instance status
Actual result:
     Filtered log first error:
        ceph-deploy osd prepare node-1:/dev/vdc3 returned 1 instead of one of [0]
     Console output error:
        Task 'deploy' has incorrect status. error != ready, 'Deployment has failed. All nodes are finished. Failed tasks: Task[primary-ceph-mon/1] Stopping the deployment process!'
Expected result:
    Test pass

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