Specify the port as  to play with Heroku.
Specify the port as  to play with Heroku.

This probably breaks things running locally. Let's talk about how we can use the 8888 for local
development. Please refer to https://devcenter.heroku.com/articles/container-registry-and-runtime
for information.

NOTE: the EXPOSE keyword is not respected on heroku because they control the ports. Hence the
environment variable PORT.

Signed-off-by: Kevin Fitzpatrick <ffb4761cba839470133bee36aeb139f58d7dbaa9@influxdb.com>

brianbaker/chronograf,brianbaker/chronograf,brianbaker/chronograf,brianbaker/chronograf,brianbaker/chronograf