Update docker files to build correctly in fresh container

.env.example

@@ -0,0 +1,39 @@
+APP_NAME="NH Gooi"
+APP_ENV=production
+APP_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+APP_DEBUG=false
+APP_LOG_LEVEL=error
+APP_URL=https://dev.nhgooi.nl
+IMAGE_BASE_URL=https://dev.nhgooi.nl
+
+API_URL=https://api.nhgooi.nl/
+
+BROADCAST_DRIVER=log
+CACHE_DRIVER=file
+SESSION_DRIVER=file
+QUEUE_DRIVER=sync
+
+REDIS_HOST=127.0.0.1
+REDIS_PASSWORD=null
+REDIS_PORT=6379
+
+MAIL_DRIVER=smtp
+MAIL_HOST=in-v3.mailjet.com 
+MAIL_PORT=25
+MAIL_USERNAME=mailjet_username
+MAIL_PASSWORD=mailjet_password
+MAIL_ENCRYPTION=null
+
+PUSHER_APP_ID=
+PUSHER_APP_KEY=
+PUSHER_APP_SECRET=
+
+DB_CONNECTION=mysql
+DB_HOST=nhgooi.nl
+DB_PORT=3306
+DB_DATABASE=dbname
+DB_USERNAME=6fmstats
+DB_PASSWORD=dbpass
+
+CACHE_DRIVER=file
+QUEUE_DRIVER=sync