How to use ContainerIPs method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.ContainerIPs

container_test.go

Source:container_test.go

...263	cip, err := builder.ContainerIP(context.Background())264	assert.Empty(t, cip)265	require.Error(t, err)266	assert.Equal(t, "cannot invoke ContainerIP() on unstarted container", err.Error())267	ips, err := builder.ContainerIPs(context.Background())268	assert.Nil(t, ips)269	require.Error(t, err)270	assert.Equal(t, "cannot invoke ContainerIPs() on unstarted container", err.Error())271	err = builder.CopyFileToContainer(context.Background(), "", "", 0)272	require.Error(t, err)273	assert.Equal(t, "cannot invoke CopyFileToContainer() on unstarted container", err.Error())274}275type logConsumer struct {276	statements []string277	sync.Mutex278}279func (lc *logConsumer) Accept(l testcontainers.Log) {280	trimmed := strings.TrimSpace(string(l.Content))281	lc.Lock()282	defer lc.Unlock()283	lc.statements = append(lc.statements, trimmed)284}285var _ testcontainers.LogConsumer = (*logConsumer)(nil)286func TestTestcontainersContainerMethods(t *testing.T) {287	alpine := NewContainer().WithImage("alpine").WithCmd(288		"sh", "-c", "echo rdy > /tmp/something && tail -f /tmp/something",289	).WithExposedPorts("12345:12345").WithName("my-alpine").WithNetworks(290		"bridge", "network_a", "network_b",291	).WillWaitForLogs("rdy").Build()292	defer func() {293		require.NoError(t, alpine.Stop(context.Background(), nil))294		require.NoError(t, alpine.Terminate(context.Background()))295		err := alpine.Terminate(context.Background())296		require.Error(t, err)297		require.Contains(t, err.Error(), "No such container")298	}()299	err := alpine.Start(context.Background())300	log := ""301	if err != nil {302		if logs, e := alpine.Logs(context.Background()); logs != nil && e == nil {303			buf := new(strings.Builder)304			io.Copy(buf, logs)305			log = buf.String()306		}307	}308	require.NoError(t, err, fmt.Sprintf("failed to start container: %q", log))309	assert.NotEmpty(t, alpine.GetContainerID())310	endpoint, err := alpine.Endpoint(context.Background(), "localhost")311	assert.Equal(t, "localhost://localhost:12345", endpoint)312	require.NoError(t, err)313	endpoint, err = alpine.PortEndpoint(context.Background(), "12345", "localhost")314	assert.Equal(t, "localhost://localhost:12345", endpoint)315	require.NoError(t, err)316	host, err := alpine.Host(context.Background())317	assert.Equal(t, "localhost", host)318	require.NoError(t, err)319	port, err := alpine.MappedPort(context.Background(), "12345")320	assert.EqualValues(t, "12345/tcp", port)321	require.NoError(t, err)322	portMap, err := alpine.Ports(context.Background())323	assert.True(t, func() bool {324		expectedPorts := []nat.PortBinding{{HostIP: "0.0.0.0", HostPort: "12345"}}325		expectedPortMap := nat.PortMap(map[nat.Port][]nat.PortBinding{326			"12345/tcp": expectedPorts,327		})328		if assert.ObjectsAreEqual(expectedPortMap, portMap) {329			return true330		}331		expectedPorts = append(expectedPorts, nat.PortBinding{HostIP: "::", HostPort: "12345"})332		expectedPortMap = nat.PortMap(map[nat.Port][]nat.PortBinding{333			"12345/tcp": expectedPorts,334		})335		return assert.ObjectsAreEqual(expectedPortMap, portMap)336	}())337	require.NoError(t, err)338	sid := alpine.SessionID()339	assert.NotEmpty(t, sid)340	rc, err := alpine.Logs(context.Background())341	require.NoError(t, err)342	assert.NotNil(t, rc)343	b := make([]byte, 15)344	rc.Read(b)345	assert.Contains(t, string(b), "rdy")346	assert.NotContains(t, string(b), "sleep inf") // confirm this isn't a bash error logging command347	err = alpine.StartLogProducer(context.Background())348	require.NoError(t, err)349	lc := logConsumer{}350	alpine.FollowOutput(&lc)351	ec, _, err := alpine.Exec(context.Background(), []string{"sh", "-c", "echo 'some message' >> /tmp/something"})352	assert.Equal(t, 0, ec)353	require.NoError(t, err)354	require.Eventually(t, func() bool {355		lc.Lock()356		defer lc.Unlock()357		for _, statement := range lc.statements {358			if statement == "some message" {359				return true360			}361		}362		return false363	}, 10*time.Second, 1*time.Millisecond)364	require.Contains(t, lc.statements, "some message")365	err = alpine.StopLogProducer()366	require.NoError(t, err)367	name, err := alpine.Name(context.Background())368	assert.Equal(t, "/my-alpine", name)369	require.NoError(t, err)370	networks, err := alpine.Networks(context.Background())371	sort.Strings(networks)372	assert.Equal(t, []string{"bridge", "network_a", "network_b"}, networks)373	require.NoError(t, err)374	aliases, err := alpine.NetworkAliases(context.Background())375	assert.NotEmpty(t, aliases)376	require.NoError(t, err)377	cip, err := alpine.ContainerIP(context.Background())378	assert.NotEmpty(t, cip)379	require.NoError(t, err)380	ips, err := alpine.ContainerIPs(context.Background())381	assert.NotEmpty(t, ips)382	require.NoError(t, err)383	err = alpine.CopyFileToContainer(384		context.Background(), path.Join(".", "testdata", "file_to_transfer"),385		"/tmp/afile", 655,386	)387	require.NoError(t, err)388}...

container.go

Source:container.go

...286		return "", err287	}288	return (*container.container).ContainerIP(ctx)289}290func (container *Container) ContainerIPs(ctx context.Context) ([]string, error) {291	if err := container.assertStarted("ContainerIPs"); err != nil {292		return nil, err293	}294	return (*container.container).ContainerIPs(ctx)295}296func (container Container) CopyDirToContainer(ctx context.Context, hostDirPath string, containerParentPath string, fileMode int64) error {297	if err := container.assertStarted("CopyDirToContainer"); err != nil {298		return err299	}300	return (*container.container).CopyDirToContainer(ctx, hostDirPath, containerParentPath, fileMode)301}302func (container *Container) CopyFileToContainer(ctx context.Context, hostFilePath string, containerFilePath string, fileMode int64) error {303	if err := container.assertStarted("CopyFileToContainer"); err != nil {304		return err305	}306	return (*container.container).CopyFileToContainer(ctx, hostFilePath, containerFilePath, fileMode)307}308func (container Container) IsRunning() bool {...

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"6379/tcp"},6		WaitingFor:   wait.ForListeningPort("6379/tcp"),7	}8	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		panic(err)12	}13	defer redisContainer.Terminate(ctx)14	ip, err := redisContainer.ContainerIP(ctx)15	if err != nil {16		panic(err)17	}18	port, err := redisContainer.MappedPort(ctx, "6379")19	if err != nil {20		panic(err)21	}22	fmt.Println(ip, port.Int())23}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"sh", "-c", "while true; do echo hello world; sleep 1; done"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   wait.ForLog("hello world"),8	}9	container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	hostPort, err := container.MappedPort(ctx, "80")15	if err != nil {16		log.Fatal(err)17	}18	containerIP, err := container.Host(ctx)19	if err != nil {20		log.Fatal(err)21	}22	containerIPs, err := container.Hosts(ctx)23	if err != nil {24		log.Fatal(err)25	}26	log.Println(containerIPs)27	containerInfo, err := container.Inspect(ctx)28	if err != nil {29		log.Fatal(err)30	}31	log.Println(containerInfo)32	err = container.Terminate(ctx)33	if err != nil {34		log.Fatal(err)35	}36}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"5432/tcp"},6		WaitingFor:   wait.ForLog("database system is ready to accept connections"),7	}8	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer postgres.Terminate(ctx)14	ip, err := postgres.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	port, err := postgres.MappedPort(ctx, "5432")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Printf("postgres is available at %s:%s", ip, port.Port())23}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForHTTP("/"),7	}8	nginxContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	ip, err := nginxContainer.ContainerIP(ctx)14	if err != nil {15		log.Fatal(err)16	}17	port, err := nginxContainer.MappedPort(ctx, "80")18	if err != nil {19		log.Fatal(err)20	}21	fmt.Println("nginx is available on", ip+":"+port.Port())22	err = nginxContainer.Terminate(ctx)23	if err != nil {24		log.Fatal(err)25	}26}27import (28func main() {29	ctx := context.Background()30	req := testcontainers.ContainerRequest{31		ExposedPorts: []string{"80/tcp"},32		WaitingFor:   wait.ForHTTP("/"),33	}34	nginxContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{35	})36	if err != nil {37		log.Fatal(err)38	}39	ips, err := nginxContainer.ContainerIPs(ctx)40	if err != nil {41		log.Fatal(err)42	}43	port, err := nginxContainer.MappedPort(ctx, "80")44	if err != nil {45		log.Fatal(err)46	}47	fmt.Println("nginx is available on", ips[0]+":"+port.Port())

ContainerIPs

Using AI Code Generation

1func main() {2    ctx := context.Background()3    req := testcontainers.ContainerRequest{4        ExposedPorts: []string{"6379/tcp"},5        WaitingFor:   wait.ForListeningPort("6379/tcp"),6    }7    redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8    })9    if err != nil {10        log.Fatal(err)11    }12    defer redisContainer.Terminate(ctx)13    ip, err := redisContainer.ContainerIP(ctx)14    if err != nil {15        log.Fatal(err)16    }17    fmt.Println(ip)18}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"6379/tcp"},6		WaitingFor:   wait.ForListeningPort("6379/tcp"),7	}8	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatalf("Could not start container: %s", err)12	}13	defer redisContainer.Terminate(ctx)14	redisHost, err := redisContainer.Host(ctx)15	if err != nil {16		log.Fatalf("Could not get host: %s", err)17	}18	redisPort, err := redisContainer.MappedPort(ctx, "6379")19	if err != nil {20		log.Fatalf("Could not get port: %s", err)21	}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"5432/tcp"},6		WaitingFor:   wait.ForListeningPort("5432/tcp"),7	}8	postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer postgresContainer.Terminate(ctx)14	ip, err := postgresContainer.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	port, err := postgresContainer.MappedPort(ctx, "5432/tcp")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(connectionString)23	fmt.Println(connectionString)24}

ContainerIPs

Using AI Code Generation

1import (2func main() {3	req := testcontainers.ContainerRequest{4		Cmd:          []string{"echo", "Hello world!"},5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForLog("Hello world!"),7	}8	ctx := context.Background()9	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	ip, err := c.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(ip)19	c.Terminate(ctx)20}

ContainerIPs

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        ExposedPorts: []string{"8080"},6        WaitingFor:   wait.ForListeningPort("8080"),7    }8    ryuk, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9    })10    if err != nil {11        panic(err)12    }13    ip, err := ryuk.Host(ctx)14    if err != nil {15        panic(err)16    }17    fmt.Println(ip)18    defer ryuk.Terminate(ctx)19}

ContainerIPs

Using AI Code Generation

1import (2func TestContainerIPs(t *testing.T) {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"sleep", "3600"},6		ExposedPorts: []string{"80/tcp", "8080/tcp"},7		WaitingFor:   wait.ForListeningPort("80/tcp"),8	}9	container, err := testcontainers.GenericContainer(ctx, req)10	if err != nil {11		log.Fatal(err)12	}13	defer container.Terminate(ctx)14	ip, err := container.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(ip)19	port, err := container.MappedPort(ctx, "80")20	if err != nil {21		log.Fatal(err)22	}23	fmt.Println(port.Int())24	ipPort, err := container.HostPort(ctx, "8080")25	if err != nil {26		log.Fatal(err)27	}28	fmt.Println(ipPort)29	ips, err := container.ContainerIPs(ctx)30	if err != nil {31		log.Fatal(err)32	}33	fmt.Println(ips)34	name, err := container.Name(ctx)35	if err != nil {36		log.Fatal(err)37	}38	fmt.Println(name)39	id, err := container.ContainerID(ctx)40	if err != nil {41		log.Fatal(err)42	}43	fmt.Println(id)44	info, err := container.Inspect(ctx)45	if err != nil {46		log.Fatal(err)47	}48	fmt.Println(info)49	logs, err := container.Logs(ctx)50	if err != nil {51		log.Fatal(err)52	}53	fmt.Println(logs)54	logs, err = container.Logs(ctx, testcontainers.LogsOptions{55		Since:      time.Now().Add(-time.Second * 10),

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