setup your own map server

gis-stack.dot

digraph gis_stack{
    fontname="Microsoft YaHei";
    fontsize=12;
    rankdir=LR;
    
    node [shape="Mrecord", fontname="Microsoft YaHei", fontsize=10];
    edge [color="#F1C40F", fontname="Microsoft YaHei", fontsize=10];

    openlayers [shape="none", image="OpenLayers.trac.png", label=""];
    leaflet [shape="none", image="leaflet-logo.png", label=""];

    tile_cache [label="TileCache", style="filled", color="orange"];
    mapnik [label="Mapnik", style="filled", color="orange"];

    subgraph cluster_datasource {
        label = "Datasource"
        style="filled";
        color="cornsilk";
        
        node [style="filled", color="orange"];
        postgis [label="PostGIS database"]
        shapefile [label="ERSI shapefiles"]
        osm [label="OpenStreetMap"]
    }

    openlayers -> tile_cache [label="WMS over HTTP"];
    leaflet -> tile_cache [label="WMS over HTTP"];
    tile_cache -> mapnik [label="fetching & caching"];
    mapnik -> postgis [label="rendering & styling"];
    mapnik -> shapefile [style="dashed"];
    mapnik -> osm [style="dashed"];
}