--- /dev/null
+#!/bin/bash
+set -ex
+
+# Create 'openstreetmap' user
+psql -v ON_ERROR_STOP=1 -U "$POSTGRES_USER" <<-EOSQL
+ CREATE USER openstreetmap PASSWORD 'openstreetmap';
+ GRANT ALL PRIVILEGES ON DATABASE openstreetmap TO openstreetmap;
+EOSQL
+
+# Create btree_gist extensions
+psql -v ON_ERROR_STOP=1 -U "$POSTGRES_USER" -c "CREATE EXTENSION btree_gist" openstreetmap