Include the Webpacker host on the web/app service (#2311)
Include the Webpacker host on the web/app service (#2311)

The environment variable for WEBPACKER_DEV_SERVER_HOST is required for the web/app container to be able to proxy /packs requests to the webpack-dev-server container.
rails/webpacker,rossta/webpacker,gauravtiwari/webpacker,rossta/webpacker,gauravtiwari/webpacker,gauravtiwari/webpacker,rossta/webpacker,rails/webpacker,rossta/webpacker