How to use get_container_ipv4_for_network method in localstack

Best Python code snippet using localstack_python

test_docker.py

Source:test_docker.py

...224        network_name = f"test-network-{short_uid()}"225        network_id = create_network(network_name)226        safe_run(["docker", "network", "connect", network_id, dummy_container.container_id])227        docker_client.start_container(dummy_container.container_id)228        result_bridge_network = docker_client.get_container_ipv4_for_network(229            container_name_or_id=dummy_container.container_id, container_network="bridge"230        ).strip()231        assert is_ipv4_address(result_bridge_network)232        bridge_network = docker_client.inspect_network("bridge")["IPAM"]["Config"][0]["Subnet"]233        assert ipaddress.IPv4Address(result_bridge_network) in ipaddress.IPv4Network(bridge_network)234        result_custom_network = docker_client.get_container_ipv4_for_network(235            container_name_or_id=dummy_container.container_id, container_network=network_name236        ).strip()237        assert is_ipv4_address(result_custom_network)238        assert result_custom_network != result_bridge_network239        custom_network = docker_client.inspect_network(network_name)["IPAM"]["Config"][0]["Subnet"]240        assert ipaddress.IPv4Address(result_custom_network) in ipaddress.IPv4Network(custom_network)241    def test_get_container_ip_for_network_wrong_network(242        self, docker_client: ContainerClient, dummy_container, create_network243    ):244        network_name = f"test-network-{short_uid()}"245        create_network(network_name)246        docker_client.start_container(dummy_container.container_id)247        result_bridge_network = docker_client.get_container_ipv4_for_network(248            container_name_or_id=dummy_container.container_id, container_network="bridge"249        ).strip()250        assert is_ipv4_address(result_bridge_network)251        with pytest.raises(ContainerException):252            docker_client.get_container_ipv4_for_network(253                container_name_or_id=dummy_container.container_id, container_network=network_name254            )255    def test_get_container_ip_for_host_network(256        self, docker_client: ContainerClient, create_container257    ):258        container = create_container(259            "alpine", command=["sh", "-c", "while true; do sleep 1; done"], network="host"260        )261        assert "host" == docker_client.get_networks(container.container_name)[0]262        # host network containers have no dedicated IP, so it will throw an exception here263        with pytest.raises(ContainerException):264            docker_client.get_container_ipv4_for_network(265                container_name_or_id=container.container_name, container_network="host"266            )267    def test_get_container_ip_for_network_non_existent_network(268        self, docker_client: ContainerClient, dummy_container, create_network269    ):270        network_name = f"invalid-test-network-{short_uid()}"271        docker_client.start_container(dummy_container.container_id)272        with pytest.raises(NoSuchNetwork):273            docker_client.get_container_ipv4_for_network(274                container_name_or_id=dummy_container.container_id, container_network=network_name275            )276    def test_create_with_host_network(self, docker_client: ContainerClient, create_container):277        info = create_container("alpine", network="host")278        network = docker_client.get_networks(info.container_name)279        assert ["host"] == network280    def test_create_with_port_mapping(self, docker_client: ContainerClient, create_container):281        ports = PortMappings()282        ports.add(45122, 22)283        ports.add(45180, 80)284        create_container("alpine", ports=ports)285    @pytest.mark.skipif(286        condition=in_docker(), reason="cannot test volume mounts from host when in docker"287    )...

container_networking.py

Source:container_networking.py

...39    network = network or get_main_container_network()40    main_container_ip = None41    try:42        if config.is_in_docker:43            main_container_ip = DOCKER_CLIENT.get_container_ipv4_for_network(44                container_name_or_id=container_name,45                container_network=network,46            )47        else:48            # default gateway for the network should be the host49            # (only under Linux - otherwise fall back to DOCKER_HOST_FROM_CONTAINER below)50            if config.is_in_linux:51                main_container_ip = DOCKER_CLIENT.inspect_network(network)["IPAM"]["Config"][0][52                    "Gateway"53                ]54        LOG.info("Determined main container target IP: %s", main_container_ip)55    except Exception as e:56        LOG.info('Unable to get IP address of main Docker container "%s": %s', container_name, e)57    # return (1) predefined endpoint host, or (2) main container IP, or (3) Docker host (e.g., bridge IP)...

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