Attempt leafcloud build on local disk to compare speed

Author: JohnGarbutt

environments/.stackhpc/LEAFCLOUD.pkrvars.hcl

@@ -1,5 +1,7 @@
 flavor = "ec1.large"
+use_blockstorage_volume = false
 volume_type = "unencrypted"
+volume_size = null
 networks = ["909e49e8-6911-473a-bf88-0495ca63853c"] # slurmapp-ci
 ssh_keypair_name = "slurm-app-ci"
 ssh_private_key_file = "~/.ssh/id_rsa"