@Deprecated
    public ContainerProxy getProxy(String hostname, int port) {
        String upstream = hostname + ":" + port;

        return proxies.computeIfAbsent(
            upstream,
            __ -> {
                try {
                    final int toxiPort = nextPort.getAndIncrement();
                    if (toxiPort > LAST_PROXIED_PORT) {
                        throw new IllegalStateException("Maximum number of proxies exceeded");
                    }

                    final Proxy proxy = client.createProxy(upstream, "0.0.0.0:" + toxiPort, upstream);
                    final int mappedPort = getMappedPort(toxiPort);
                    return new ContainerProxy(proxy, getHost(), mappedPort, toxiPort);
                } catch (IOException e) {
                    throw new RuntimeException("Proxy could not be created", e);
                }
            }
        );
    }
Obtain a {@link ContainerProxy} instance for a specific hostname and port, which can be for any host
that is routable <b>from this {@link ToxiproxyContainer} instance</b> (e.g. on the same
Docker {@link Network} or on routable from the Docker host).

<p><em>It is expected that {@link ToxiproxyContainer#getProxy(GenericContainer, int)} will be more
useful in most scenarios, but this method is present to allow use of Toxiproxy in front of containers
or external servers that are not managed by Testcontainers.</em></p>

@param hostname hostname of target server to be proxied
@param port port number on the target server that should be proxied
@return a {@link ContainerProxy} instance
@deprecated {@link ToxiproxyContainer} will not build the client. Proxies should be provided manually.
modules/toxiproxy/src/main/java/org/testcontainers/containers/ToxiproxyContainer.java