-----> Releasing appname...
-----> Deploying appname...
-----> Running pre-flight checks
       For more efficient zero downtime deployments, create a file CHECKS.
       See http://progrium.viewdocs.io/dokku/checks-examples.md for examples
       CHECKS file not found in container: Running simple container check...
-----> Waiting for 10 seconds ...
remote: App container failed to start!!
=====> workfolio container output:
       Starting up http-server, serving ./ on: http://0.0.0.0:8080
       Hit CTRL-C to stop the server
=====> end workfolio container output
remote: /usr/local/bin/dokku: line 49: 20781 Killed                  dokku deploy "$APP"