Could not start application

[Slavenin]

Hi!
I add extatus in my mix:

{:extatus, "~> 0.2"}

add config in config/config.exs

config :extatus,
  timeout: 5000,
  port:  1338, #System.get_env("METRIC_PORT"),
  prometheus_registry: :default

add gen server how in example.
add :extatus in application section mix.exs

add Instrumented to supervisor

worker(Instrumented, [restart: :permanent]),

but when i start my application i see error:

[2018-04-02 14:03:13.902] [debug] Using the lastest version of yggdrasil (3.2.3)
[port: nil]
** (Mix) Could not start application extatus: Extatus.start(:normal, []) returned an error: shutdown: failed to start child: Extatus.Server
    ** (EXIT) {{:shutdown, {:failed_to_start_child, :ranch_acceptors_sup, :badarg}}, {:child, :undefined, {:ranch_listener_sup, :http}, {:ranch_listener_sup, :start_link, [:http, 100, :ranch_tcp, [port: nil], :cowboy_protocol, [compress: true, env: [dispatch: [{:_, [], [{["metrics"], [], Extatus.Callback, []}]}]], name: Extatus.Server]]}, :permanent, :infinity, :supervisor, [:ranch_listener_sup]}}

this error because port is nill. But why?

[alexdesousa]

Thanks for checking this project out :)

I have found the bug that's causing this problem. It's a problem with our recent way of reading arguments from the configuration. I'll fix this soon (probably tomorrow). But for now, you can use the Environment variable EXTATUS_PORT to set your port.

This environment variable must exist before you compile extatus (this is the bug). So, you need to do mix deps.clean --all, mix clean, set the variable EXTATUS_PORT and then recompile everything.

If these steps don't work, let me know. For now, I'll mark this as a bug.

[Slavenin]

this work!

export EXTATUS_PORT=1338
mix deps.clean extatus
mix deps.get
mix deps.compile