infrastructure: set root disk to 100GB

Without setting a size for the root disk, AWS defaults
to 8GB.  Let's set that to 100GB so we don't have to
keep adding partitions later on.

Change-Id: I1893396f1629db4ed84501cc4b520c410ba019d4
1 file changed
tree: 25b34656896b547986ff1f1c3a046913db26880d
  1. .gitreview
  2. ecr.tf
  3. infra.tf
  4. main.tf
  5. README.txt