anchor.diff:  -on_load(on_load/0).
   
   -include_lib("kernel/include/inet.hrl").
  +-include_lib("public_key/include/public_key.hrl").
   
   %% API.
   
  
positive.code:                                                {key, Key}]}) of
                  {ok, Pid} ->
                      {ok, #{docker => Pid,
                             name => Name,
                             port => Port,
                             cert => Cert,
  
negative.code:     end.
  
  connection(URI, Cert, Key) ->
      [{KeyType, Value, _}] = public_key:pem_decode(Key),
      [{_, Certificate, _}] = public_key:pem_decode(Cert),
      case http_uri:parse(URI) of
          {ok, {_, _, Name, Port, _, _}} ->
              {ok, #{name => Name,
                     cert => Certificate,
                     key => {KeyType, Value},
                     port => Port}};
          {error, _} = Error ->
              Error
  