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AWS APIs library for Erlang
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Files
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Files
src/erlcloud_ecs_container_credentials.erl
-module(erlcloud_ecs_container_credentials).
-include("erlcloud.hrl").
-include("erlcloud_aws.hrl").
-export([get_container_credentials/1]).
%%%---------------------------------------------------------------------------
-spec get_container_credentials( Config :: aws_config() ) -> {ok, binary()} | {error, container_credentials_unavailable | erlcloud_aws:httpc_result_error()}.
%%%---------------------------------------------------------------------------
%% @doc Retrieve the container credentials. Will fail if not an ECS task.
%%
%% This convenience function will retrieve the credentials from the AWS metadata available at
%% http://169.254.170.2${AWS_CONTAINER_CREDENTIALS_RELATIVE_URI}
%%
%%
get_container_credentials(Config) ->
RelativeUri = os:getenv("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI"),
case RelativeUri of
false -> {error, container_credentials_unavailable};
_ ->
CredentialsPath = "http://169.254.170.2" ++ RelativeUri,
erlcloud_aws:http_body(erlcloud_httpc:request(CredentialsPath, get, [], <<>>, erlcloud_aws:get_timeout(Config), Config))
end.