Add sudoers.d entry for Ironic conductor

Ironic conductor requires sudo access for ironic-rootwrap.

Change-Id: Ic6f24a864ca0255e2a8e69969f347bcaf8493e1f
diff --git a/lib/ironic b/lib/ironic
index 50c0fb6..ec9447d 100644
--- a/lib/ironic
+++ b/lib/ironic
@@ -170,6 +170,15 @@
 function configure_ironic_conductor {
     cp $IRONIC_DIR/etc/ironic/rootwrap.conf $IRONIC_ROOTWRAP_CONF
     cp -r $IRONIC_DIR/etc/ironic/rootwrap.d $IRONIC_CONF_DIR
+    IRONIC_ROOTWRAP=$(get_rootwrap_location ironic)
+    ROOTWRAP_ISUDOER_CMD="$IRONIC_ROOTWRAP $IRONIC_CONF_DIR/rootwrap.conf *"
+
+    # Set up the rootwrap sudoers for ironic
+    TEMPFILE=`mktemp`
+    echo "$STACK_USER ALL=(root) NOPASSWD: $ROOTWRAP_ISUDOER_CMD" >$TEMPFILE
+    chmod 0440 $TEMPFILE
+    sudo chown root:root $TEMPFILE
+    sudo mv $TEMPFILE /etc/sudoers.d/ironic-rootwrap
 
     iniset $IRONIC_CONF_FILE DEFAULT rootwrap_config $IRONIC_ROOTWRAP_CONF
     iniset $IRONIC_CONF_FILE DEFAULT drivers_whitelist $IRONIC_DRIVERS_WHITELIST