MapProxy#
Overview#
MapProxy is run as a service.
To access MapProxy, click the MapProxy link on the left menu

Restart#
To stop/start/restart MapProxy, click the Stop or Restart button as shown below.

Edit#
To edit the mapproxy.yaml file, click the edit button as shown below.

This will open the mapporxy.yaml file for editing.

Note
Be sure to click the Submit button at bottom after making changes.
MapProxy Directory#
The MapProxy config directory is located at:
/var/www/data/mapproxy
The default configuration files are shown below

Cache Directory#
The MapProxy config directory is located at:
/var/www/data/mapproxy/cache_data
The ouput from the demo data is shown below

Authentication#
When a Layer is set to Private, MapProxy authenticates requests against the QeoSerer user database.
Authentication is accomplished using the wsgiapp_authorize.patch file:
patch -d /usr/lib/python3/dist-packages/mapproxy -p0 < installer/wsgiapp_authorize.patch
This file is located in the QeoServer installer directory.
Layer Preview#
To change Layer Preview or Custom Layers to use MapProxy in place of PHP Session Cache, change section below from:
const wmsLayer = L.tileLayer.wms('proxy_qgis.php?', {
layers: '<?=implode(',', QGIS_LAYERS)?>'
}).addTo(map);
to:
const wmsLayer = L.tileLayer.wms('https://domain.com/mproxy/service', {
layers: 'neighborhoods'
}).addTo(map);
Note that in addition to the new url, we are also referencing the Layer name explicitly.
Seed Layer#
Cache is created by MapProxy when requests are made for layers.
You can also seed Layers to specified zoom levels.
To do so, go to MapProxy > Seed on the left menu
Select the layer to seed and click the Start button as shown below.
The progress and status are displayed.

To edit the seed yaml file for the layer, click the edit icon as shown below:

Make any edits and then click the submit button.

Seed Versioning#
Each update to the yaml file for each layer creates a restorable backup.
If you wish to restore a previous version, simply select it from the dropdown as show below

Service File#
MapProxy is configured to run as a systemd service.
The mapproxy.service file contains below by default:
[Unit]
Description=MapProxy
After=multi-user.target
[Service]
User=www-data
Group=www-data
WorkingDirectory=/var/www/data/mapproxy
Type=simple
Restart=always
EnvironmentFile=/etc/environment
Environment=PGSYSCONFDIR=/var/www/data/qgis/
Environment=SKIP_AUTH=fish.webgis1.com
ExecStart=mapproxy-util serve-develop /var/www/data/mapproxy/mapproxy.yaml -b 127.0.0.1:8011
[Install]
WantedBy=multi-user.target