deploy docs needed - how to specify port

[tigernassau]

nice work on kemal - we are switching from Sinatra

how to run kemal on a specific port ?
crystal myapp.cr -p 8000 => fail
Kemal.run -p 8000 => fail
maybe answer is to run websocket but need to figure out how to integrate with nginx reverse proxy

deploying does not seem to be addressed in any samples or docs

[sdogruyol]

From CLI

Please build your app in release mode.

crystal build --release your_app.cr
./your_app -p 3000

In your code

Kemal.config.port = 3000

[s0kil]

This needs to be in docs: Kemal.config.port = 3000

[carcinocron]

This is probably preferred:

ENV["PORT"] ||= "3000"

Kemal.config.port = env["PORT"].to_i

[straight-shoota]

Better: ENV["PORT"]?.try(&.to_i) || 3000