Is this the same as T109776: Tilerator should purge Varnish cache?

I don't see that a regex is really a problem. You'd need one regex per zoom you want to invalidate (or combine them into one regex), but those regexes are simple, just saying that the x and y values have to between maximum and minimum values.

In T159977#3085290, @MaxSem wrote:

Is this the same as T109776: Tilerator should purge Varnish cache?

It is related but slightly different. T109776: Tilerator should purge Varnish cache is mostly about invalidation during normal operations, while this tasks is about a specific manual process in case of problem.

In T159977#3086191, @Pnorman wrote:

I don't see that a regex is really a problem. You'd need one regex per zoom you want to invalidate (or combine them into one regex), but those regexes are simple, just saying that the x and y values have to between maximum and minimum values.

This isn't necessarily a hard problem, but it is an undocumented one. Regex might be enough, we just need a way to generate those regexes easily (some documentation might be enough).

No one else is doing this, so we've decided we don't really *need* this. Which of course will immediately cause a rendering problem where we wish we had it ;)

@Gehel Should P7451 be added to operations/puppet? Maybe it could be updated to take an optional URL regex (list) parameter and/or parameter for a path to a file containing the same.

Stalling this so we can discuss acceptance criteria at the next maps or RI standup.

Rather than let this languish, let's consider P7451 the process (in conjunction with the area-targeted URL generation added in https://github.com/kartotherian/tilerator/commit/93e1b4ecc81a1dca6d16299296d4c133c8d3a19b, where applicable) and call this done.