Use urandom rather than openssl for password gen
I tried using devstack on a cloud image that didn't have openssl, so
it generated blank passwords and gave an error about openssl missing.
Using urandom should not require more than minimal shell tools.
Change-Id: Ib3091183eb1d85fc8cf7c76e47da24a04ae4791f
diff --git a/stack.sh b/stack.sh
index 19d47d6..8fb57c4 100755
--- a/stack.sh
+++ b/stack.sh
@@ -410,7 +410,7 @@
echo "Invalid chars in password. Try again:"
done
if [ ! $pw ]; then
- pw=`openssl rand -hex 10`
+ pw=$(cat /dev/urandom | tr -cd 'a-f0-9' | head -c 20)
fi
eval "$var=$pw"
echo "$var=$pw" >> $localrc