Add build script and update config

Author: maxime1907

build.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+source config.env
+
+docker image build --build-arg DOCKER_HUB_USER=$DOCKER_HUB_USER --build-arg IMAGE_BUILD_DATE=$IMAGE_BUILD_DATE --build-arg IMAGE_VERSION=$IMAGE_VERSION --build-arg FILEGATOR_RELEASE=$FILEGATOR_RELEASE -t $DOCKER_HUB_USER/$IMAGE_NAME:$IMAGE_VERSION .

config.env

@@ -2,3 +2,4 @@ DOCKER_HUB_USER=maxime1907
 IMAGE_NAME=filegator
 IMAGE_VERSION=latest
 IMAGE_BUILD_DATE=`date +"%Y-%m-%dT%T"`
+FILEGATOR_RELEASE=v7.7.0