Be permissive with tumbleweed mirroring for now

We mainly focus on opensuse leap, so having those
mirrors up to date is more important than tumbleweed.

We need to avoid tumbleweed blocking the rest of the
sync, so we are permissive with errors there for now.

Change-Id: If15b0f65d7f4a470d9274be41b3d921d7709f19a

modules/openstack_project/files/mirror/opensuse-mirror-update.sh

@@ -102,11 +102,13 @@ fi
 
 date --iso-8601=ns
 echo "Running rsync distribution $REPO ..."
+# TW is large and can have failures, be more resilient
 $K5START rsync -rlptDvz \
     --delete --stats \
     --delete-excluded \
     --exclude="i586" \
-    $MIRROR/$REPO/repo/oss/ $BASE/$REPO/repo/oss/
+    --ignore-errors \
+    $MIRROR/$REPO/repo/oss/ $BASE/$REPO/repo/oss/ || :
 
 REPO=update/tumbleweed
 if ! [ -f $BASE/$REPO ]; then
@@ -120,6 +122,7 @@ $K5START rsync -rlptDvz \
     --delete --stats \
     --delete-excluded \
     --exclude="i586" \
+    --ignore-errors \
     rsync://rsync.opensuse.org/buildservice-repos-main/openSUSE:/Factory:/Update/standard/ \
     $BASE/$REPO || :