Add water as first example layer

schema/Dockerfile

@@ -0,0 +1,17 @@
+FROM osm2vectortiles/postgis:latest
+MAINTAINER Lukas Martinelli <me@lukasmartinelli.ch>
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+      ca-certificates \
+      wget \
+ && rm -rf /var/lib/apt/lists/*
+
+ENV VT_UTIL_DIR=/opt/postgis-vt-util \
+    VT_UTIL_URL="https://raw.githubusercontent.com/mapbox/postgis-vt-util/v1.0.0/postgis-vt-util.sql"
+
+RUN mkdir -p "$VT_UTIL_DIR" \
+ && wget -P "$VT_UTIL_DIR" --quiet "$VT_UTIL_URL"
+
+COPY . /usr/src/app/
+WORKDIR /usr/src/app
+CMD ["./create_schema.sh"]

schema/create_schema.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+set -o errexit
+set -o pipefail
+set -o nounset
+
+function exec_psql_file() {
+    local file_name="$1"
+    PGPASSWORD="$POSTGRES_PASSWORD" psql \
+        -v ON_ERROR_STOP="1" \
+        --host="$POSTGRES_HOST" \
+        --port="$POSTGRES_PORT" \
+        --dbname="$POSTGRES_DB" \
+        --username="$POSTGRES_USER" \
+        -f "$file_name"
+}
+
+function main() {
+    exec_psql_file "$VT_UTIL_DIR/postgis-vt-util.sql"
+    exec_psql_file "layers/water.sql"
+}
+
+main

schema/layers/water.sql

@@ -0,0 +1,29 @@
+CREATE OR REPLACE VIEW water_z0 AS (
+    SELECT geom FROM ne_110m_ocean
+    UNION ALL
+    SELECT geom FROM ne_110m_lakes
+);
+
+CREATE OR REPLACE VIEW water_z1 AS (
+    SELECT geom FROM ne_110m_ocean
+    UNION ALL
+    SELECT geom FROM ne_110m_lakes
+);
+
+CREATE OR REPLACE VIEW water_z2 AS (
+    SELECT geom FROM ne_50m_ocean
+    UNION ALL
+    SELECT geom FROM ne_110m_lakes
+);
+
+CREATE OR REPLACE VIEW water_z4 AS (
+    SELECT geom FROM ne_10m_ocean
+    UNION ALL
+    SELECT geom FROM ne_50m_lakes
+);
+
+CREATE OR REPLACE VIEW water_z5 AS (
+    SELECT geom FROM ne_10m_ocean
+    UNION ALL
+    SELECT geom FROM ne_10m_lakes
+);