java - How do I run a Play Framework 2 app in dev mode on Heroku? -

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i created staging app on heroku, , run in dev mode. also, have procfile set use application.production.conf, use application.staging.conf in staging app. how can this?

use config variable set this. like:

procfile:

web: target/start -dconfig.file=${config_file}

then set config each environment:

heroku config:add --app my-staging config_file=application.staging.conf heroku config:add --app my-prod config_file=application.production.conf

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