rabbitmq-server/deps/rabbitmq_peer_discovery_common/include/rabbit_peer_discovery.hrl

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% rabbitmq/rabbitmq-peer-discovery-aws#25
% Note: this timeout must not be greater than the default
% gen_server:call timeout of 5000ms. This `timeout`,
% when set, is used as the connect and then request timeout
% by `httpc`
-define(DEFAULT_HTTP_TIMEOUT, 2250).

-type peer_discovery_config_value() :: atom() | integer() | string() | undefined.

-record(peer_discovery_config_entry_meta,
        {env_variable  :: string(),
         default_value :: peer_discovery_config_value(),
         type          :: atom()}).