[MapProxy] a problem with mapnik as source

[Chen Barnoy]

Hi all,

I am trying to set up a wms server using MapProxy 1.8.2 and mapnik,
displaying osm data in EPSG:4326, on ubuntu 18.
The mapproxy demo did run ok.

With the help of this tutorial (switch2osm
<https://switch2osm.org/manually-building-a-tile-server-18-04-lts/>) I've
managed to install mapnik, create a stylesheet, and it does seem to work in
their described pipeline (mod_tile, renderd, mapnik, osm2pgsql and a
postgresql/postgis database).

however, when trying to use mapnik as a source to wms, the map is empty in
the demo page.

this is my configuration:
services:
  demo:
  tms:
    use_grid_names: true
    # origin for /tiles service
    origin: 'nw'
  kml:
      use_grid_names: true
  wmts:
  wms:
    md:
      title: MapProxy WMS Proxy
      abstract: This is a minimal MapProxy example.

layers:
  - name: mapniktest
    title: test layer based on mapnik
    sources: [my_mapnik_source]

sources:
  my_mapnik_source:
    type: mapnik
    mapfile: /home/chen/src/openstreetmap-carto/mapnik.xml

this is the output I get in the terminal:

[2018-10-14 16:19:12,778] mapproxy.config - INFO - reading:
/home/chen/mymapproxy/mapproxy.yaml
[info]  * Running on http://127.0.0.1:8080/ (Press CTRL+C to quit)
[info]  * Restarting with reloader
[2018-10-14 16:19:13,199] mapproxy.config - INFO - reading:
/home/chen/mymapproxy/mapproxy.yaml
[info] 127.0.0.1 - - [14/Oct/2018 16:19:31] "GET / HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:34] "GET /demo/ HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:34] "GET /demo/static/site.css
HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:34] "GET /demo/static/logo.png
HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/?srs=EPSG%3A4326&format=image%2Fpng&wms_layer=mapniktest HTTP/1.1"
200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET /demo/static/site.css
HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET /demo/static/logo.png
HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET /demo/static/OpenLayers.js
HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/theme/default/style.css HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/north-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/west-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/east-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/zoom-plus-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/south-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/zoom-world-mini.png HTTP/1.1" 200 -
[info] 127.0.0.1 - - [14/Oct/2018 16:19:39] "GET
/demo/static/img/zoom-minus-mini.png HTTP/1.1" 200 -
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'Noto
Emoji Regular' in FontSet 'fontset-0'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinA Regular' in FontSet 'fontset-0'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinB Regular' in FontSet 'fontset-0'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'unifont
Medium' in FontSet 'fontset-0'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'Noto
Emoji Regular' in FontSet 'fontset-1'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinA Regular' in FontSet 'fontset-1'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinB Regular' in FontSet 'fontset-1'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'unifont
Medium' in FontSet 'fontset-1'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'Noto
Emoji Regular' in FontSet 'fontset-2'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinA Regular' in FontSet 'fontset-2'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name
'HanaMinB Regular' in FontSet 'fontset-2'
Mapnik LOG> 2018-10-14 16:19:39: warning: unable to find face-name 'unifont
Medium' in FontSet 'fontset-2'
[2018-10-14 16:19:40,441] mapproxy.source.request - INFO - API
/home/chen/src/openstreetmap-carto/mapnik.xml:(-260.859375,-210.9375,260.859375,210.9375):EPSG:4326:(742,600)
200 3.2 1121

I am glad for any help,
Chen
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