vaccins/config/releases.exs

# In this file, we load production configuration and secrets
# from environment variables. You can also hardcode secrets,
# although such is generally not recommended and you have to
# remember to add this file to your .gitignore.
import Config

host_ip =
  System.get_env("HOST_IP") ||
    raise "environment variable HOST_IP is missing."

port =
  System.get_env("PORT") ||
    raise "environment variable PORT is missing."

config :vaccins, VaccinsWeb.Endpoint,
  url: [host: host_ip, port: port],
  http: [
    port: String.to_integer(port),
    net: :inet,
    transport_options: [socket_opts: [:inet6]]
  ],
  check_origin: [
    "http://localhost:#{port}",
    "http://192.168.0.13:#{port}",
    "http://#{host_ip}:#{port}"
  ]

config :vaccins, VaccinsWeb.Endpoint, server: true