Load postgis-vt-util functions

* Load postgis-vt-util functions

* Add ca-certificates into build

* Fixup cmds

Dockerfile

@@ -7,6 +7,8 @@ ENV POSTGIS_MAJOR=2.3 \
 RUN apt-get -y update \
  && apt-get -y --no-install-recommends install \
         curl \
+        wget \
+        ca-certificates \ 
         build-essential cmake \
         # PostGIS build dependencies
 		postgresql-server-dev-$PG_MAJOR libxml2-dev libjson0-dev libproj-dev libgdal-dev \
@@ -28,5 +30,10 @@ RUN curl -o /opt/postgis.tar.gz http://download.osgeo.org/postgis/source/postgis
  && make install \
  && ldconfig
 
+ENV VT_UTIL_DIR=/opt/postgis-vt-util \
+    VT_UTIL_URL="https://raw.githubusercontent.com/mapbox/postgis-vt-util/v1.1.0/postgis-vt-util.sql"
+
+RUN mkdir -p $VT_UTIL_DIR && wget -P $VT_UTIL_DIR "$VT_UTIL_URL"
+
  ##&& (cd /opt/postgis/extensions/postgis && make -j && make install) \
 COPY ./initdb-postgis.sh /docker-entrypoint-initdb.d/10_postgis.sh

initdb-postgis.sh

@@ -29,6 +29,7 @@ function create_postgis_extension() {
 function main() {
     create_template_postgis
     create_postgis_extension
+    execute_sql_into_template "$VT_UTIL_DIR/postgis-vt-util.sql"
 }
 
 main