yep

docker/docker-entrypoint-initdb.d/pg.init.sh

@@ -0,0 +1,8 @@
+# #!/bin/bash
+# set -e
+
+# psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+#     CREATE USER mcrates;
+#     CREATE DATABASE mcrates;
+#     GRANT ALL PRIVILEGES ON DATABASE mcrates TO mcrates;
+# EOSQL