check for AWS environment before running sudo

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

hack/make-rules/test-e2e-node.sh

@@ -207,6 +207,8 @@ else
   # Refresh sudo credentials if needed
   if ping -c 1 -q metadata.google.internal &> /dev/null; then
     echo 'Running on GCE, not asking for sudo credentials'
+  elif ping -c 1 -q 169.254.169.254 &> /dev/null; then
+    echo 'Running on AWS, not asking for sudo credentials'
   elif sudo --non-interactive "$(which bash)" -c true 2> /dev/null; then
     # if we can run bash without a password, it's a pretty safe bet that either
     # we can run any command without a password, or that sudo credentials