On each OSM import, imposm exports a list of expired tile list at a specified zoom level. While the tile expiration propagates to different zoom levels we have overlapping tiles (eg. 2 tiles have the same parent tile). In order to avoid pregenerating tiles multiple times we need a mechanism to deduplicate the list.
- Implement a simple CLI util that does the deduplication
- Package the CLI util
- Install package in maps master nodes