Hi, I am facing a very odd behaviour trying to deploy an Elixir umbrella using conduit_amqp:
- locally, everything runs fine, no issues there.
- deploying my application (kubernetes pod wrapped in a statefulset), I am unable to connect to the RabbitMQ instance, with the following logs:
22:24:34.317 [info] [supervisor: {#PID<0.5632.0>, :amqp_connection_sup}, started: [pid: #PID<0.5633.0>, name: :connection_type_sup, mfargs: {:amqp_connection_type_sup, :start_link, []}, restart_type: :transient, shutdown: :infinity, child_type: :supervisor]]
22:24:34.318 [info] [supervisor: {#PID<0.5632.0>, :amqp_connection_sup}, started: [pid: #PID<0.5634.0>, name: :connection, mfargs: {:amqp_gen_connection, :start_link, [#PID<0.5633.0>, {:amqp_params_network, "guest", "guest", "/", 'localhost', 5672, 0, 0, 10, 60000, :none, [&:amqp_auth_mechanisms.plain/3, &:amqp_auth_mechanisms.amqplain/3], [], []}]}, restart_type: :intrinsic, shutdown: :brutal_kill, child_type: :worker]]
22:24:34.321 [error] Cannot connect to RabbitMQ broker
22:24:48.128 [info] [supervisor: {#PID<0.5635.0>, :amqp_connection_sup}, started: [pid: #PID<0.5636.0>, name: :connection_type_sup, mfargs: {:amqp_connection_type_sup, :start_link, []}, restart_type: :transient, shutdown: :infinity, child_type: :supervisor]]
I am using Elixir 1.9.1 releases, and for a reason that I do not understand, the runtime configuration is not applied. When running Application.get_env(:my_app, MyBrokerModule) inside my production node, the runtime configuration is correct, just like it’s defined in the releases.exs file. If I stop the application, and restart the app through the Application module functions, then the config applies and the broker connects to the RabbitMQ instance, creates the queues & exchanges as it should.
I am really puzzled by this behaviour and I don’t even know if this is the right place to post this. Is it an issue with Elixir 1.9? Is is an issue with the boot sequence of Conduit? I am lost and I would love some help figuring this out 
!
