[RHOSO 18] - Baremetal provisioning - Unable to write image to /tmp/edpm-hardened-uefi.qcow2. Error: [Errno 28] No space left on device

Issue

• Metal3 provisioning fails with the following error:

$ oc describe bmh/<host>

  Normal  ProvisioningStarted     37m   metal3-baremetal-controller  Image provisioning started for http://10.10.10.1:6191/edpm-hardened-uefi.qcow2
  Normal  ProvisioningError       34m   metal3-baremetal-controller  Image provisioning failed: Deploy step deploy.write_image failed on node 805f2c1e-175f-441a-ae28-7c3ae8e5a35c. Download of image edpm-hardened-uefi.qcow2 failed: Unable to write image to /tmp/edpm-hardened-uefi.qcow2. Error: [Errno 28] No space left on device
  Normal  DeprovisioningStarted   32m   metal3-baremetal-controller  Image deprovisioning started