Initial terraform configuration

build.sh

@@ -29,9 +29,13 @@ check_vagrant_path() {
     (echo >&2 "Please correct this before continuing. Quitting.")
     exit 1
   fi
-  # Ensure Vagrant >= 2.0.0
-  if [ "$(vagrant --version | grep -o "[0-9]" | head -1)" -lt 2 ]; then
-    (echo >&2 "WARNING: It is highly recommended to use Vagrant 2.0.0 or above before continuing")
+  # Ensure Vagrant >= 2.2.2
+  # https://unix.stackexchange.com/a/285928
+  VAGRANT_VERSION="$(vagrant --version | cut -d ' ' -f 2)"
+  REQUIRED_VERSION="2.2.2"
+  # If the version of Vagrant is not greater than the required version
+  if ! [ "$(printf '%s\n' "$REQUIRED_VERSION" "$VAGRANT_VERSION" | sort -V | head -n1)" = "$REQUIRED_VERSION" ]; then
+    (echo >&2 "WARNING: It is highly recommended to use Vagrant $REQUIRED_VERSION or above before continuing")
   fi
 }