I’m trying to create a secure connection to an MQTT broker using Tortoise however I receive an error {:error, {:options, {:cert, '/Users/packardgoose/Desktop/host.cert'}}} I’m not sure what I’m doing wrong, should the certificate be a .pem file? I should be able to use a directory for this argument according to some documentation I read.

Here’s the code

@cert '/Users/packardgoose/Desktop/host.cert'
@key '/Users/packardgoose/Desktop/host.key'

{:ok, _pid} = Tortoise.Supervisor.start_child(
client_id: "my_id",
handler: {Tortoise.Handler.Logger, []},
server:
  {Tortoise.Transport.SSL,
    [host: 'getahos.io',
     port: 8885,
     cacertfile: :certifi.cacertfile(),
     key: @key,
     cert: @cert
    ]},
keep_alive: 300000,
user_name: Keyword.fetch!(state_tokens, :mqtt_token),
password: Keyword.fetch!(state_tokens, :mqtt_token_pass))