services:
  #sets up how to make the source data available
  demo:
  tms:
  wmts:
  wms:
    srs: ['CRS:84', 'EPSG:4326', 'EPSG:3857']

layers:
  #sets up which layers you want to make available using the services above. You can add many, but let's stick to osm data here.
  - name: osm
    title: Open Streetmap Tiles
    sources: [osm_cache] #this layer should use the osm_cache (defined below) as it's source.

caches:
  #setup the cache for the open streetmap tiles. This cache is used by the layer above.

   osm_cache:
    grids: [GLOBAL_WEBMERCATOR]
    bulk_meta_tiles: true
    sources: [osm_tiles]
    cache:
      type: sqlite
      directory: osmcache

sources:
   osm_tiles:
     #the osm_tiles source refers to the openstreetmap.org tiles. These will be downloaded upon request (if not already cached) and served by MapProxy
     type: tile
     url: http://c.tile.openstreetmap.org/%(tms_path)s.%(format)s
     grid: osm_grid #the grid to use for the osm tiles. This is really important. It is specified below.

grids:
  osm_grid:
     base: GLOBAL_WEBMERCATOR
     srs: EPSG:3857
     origin: nw

globals:
  #next are some global configuration options for MapProxy. They mostly explain themselves, or can be looked-up in the MapProxy docs.
  cache:
    # where to store the cached images
    base_dir: '/opt/mapproxy/cache_data'
    # where to store lockfiles
    lock_dir: '/opt/mapproxy/cache_data'
  # image/transformation options
  image:
      resampling_method: bilinear
      jpeg_quality: 90