Ephemeral disk space is not used as expected (master and worker)

worker

Worker nodes don't provide a possible available ephemeral disk at the expected mount point (/vol/scratch).

When executing a playbook-run manually on a worker node, the necessary task is not executed:

~/playbook$ ansible-playbook -i ansible_hosts  -l bibigrid-worker0-13zsge5r67khjt3-0 site.yml
...
TASK [bibigrid : Create /vol bind mount from /mnt ephemeral] ********************************************************************************************************************
skipping: [bibigrid-worker0-13zsge5r67khjt3-0]

TASK [bibigrid : mount disks] *********************************************************************************************************************
skipping: [bibigrid-worker0-13zsge5r67khjt3-0]

TASK [bibigrid : Create /vol/scratch bind mount from /mnt ephemeral] *********************************************************************************************************************
skipping: [bibigrid-worker0-13zsge5r67khjt3-0]

TASK [bibigrid : Change permissions for /vol/scratch mount point] *********************************************************************************************************************
skipping: [bibigrid-worker0-13zsge5r67khjt3-0]
...