Curator docs say
What this means is that a simple timestring to match year and month,
%Y.%mwill result in a regular expression like this:^.*\d{4}\.\d{2}.*$. This pattern will match any 4 digits, followed by a period., followed by 2 digits, occurring anywhere in the index name.
It seems to me that a pattern like ^foo$ shouldn't match foo anywhere in an index name. Hopefully regex anchors actually work (against the whole index name string)? I assume one of those two sentences is wrong.