add central place for configuration

config

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+export MONGO_IMAGE=${MONGO_IMAGE:="mongo"}
+export MONGO_IMAGE_VERSION=${MONGO_IMAGE_VERSION:="3.1.6"}
+export MONGO_ROOT=/var/lib/dokku/services/mongo
+
+export PLUGIN_COMMAND_PREFIX="mongo"
+export PLUGIN_DATA_ROOT=$MONGO_ROOT
+export PLUGIN_DATASTORE_PORT=27017
+export PLUGIN_DEFAULT_ALIAS="MONGO"
+export PLUGIN_IMAGE=$MONGO_IMAGE
+export PLUGIN_IMAGE_VERSION=$MONGO_IMAGE_VERSION
+export PLUGIN_SCHEME="mongodb"
+export PLUGIN_SERVICE="MongoDB"