How to use Ports method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.Ports

container.go

Source:container.go

...18type Container struct {19	ctx          context.Context20	container    testcontainers.Container21	WaitingFor   wait.Strategy22	Ports        map[string]string23	Env          map[string]string24	BindMounts   map[string]string25	Image        string26	Name         string27	Address      string28	ExposedPorts []string29	Logs         TestLogConsumer30	Networks     []string31	Entrypoint   []string32}33func (c *Container) Start() error {34	c.ctx = context.Background()35	containerMounts := make([]testcontainers.ContainerMount, 0, len(c.BindMounts))36	for k, v := range c.BindMounts {37		containerMounts = append(containerMounts, testcontainers.BindMount(v, testcontainers.ContainerMountTarget(k)))38	}39	req := testcontainers.GenericContainerRequest{40		ContainerRequest: testcontainers.ContainerRequest{41			Mounts:       testcontainers.Mounts(containerMounts...),42			Entrypoint:   c.Entrypoint,43			Env:          c.Env,44			ExposedPorts: c.ExposedPorts,45			Image:        c.Image,46			Name:         c.Name,47			Networks:     c.Networks,48			WaitingFor:   c.WaitingFor,49		},50		Started: true,51	}52	container, err := testcontainers.GenericContainer(c.ctx, req)53	if err != nil {54		return fmt.Errorf("container failed to start: %w", err)55	}56	c.container = container57	c.Logs = TestLogConsumer{58		Msgs: []string{},59	}60	c.container.FollowOutput(&c.Logs)61	err = c.container.StartLogProducer(c.ctx)62	if err != nil {63		return fmt.Errorf("log producer failed: %w", err)64	}65	c.Address = "localhost"66	err = c.LookupMappedPorts()67	if err != nil {68		_ = c.Terminate()69		return fmt.Errorf("port lookup failed: %w", err)70	}71	return nil72}73// create a lookup table of exposed ports to mapped ports74func (c *Container) LookupMappedPorts() error {75	if len(c.ExposedPorts) == 0 {76		return nil77	}78	if len(c.Ports) == 0 {79		c.Ports = make(map[string]string)80	}81	for _, port := range c.ExposedPorts {82		// strip off leading host port: 80:8080 -> 808083		if strings.Contains(port, ":") {84			port = strings.Split(port, ":")[1]85		}86		// strip off the transport: 80/tcp -> 8087		if strings.Contains(port, "/") {88			port = strings.Split(port, "/")[0]89		}90		p, err := c.container.MappedPort(c.ctx, nat.Port(port))91		if err != nil {92			return fmt.Errorf("failed to find '%s' - %w", port, err)93		}94		fmt.Printf("mapped container port '%s' to host port '%s'\n", port, p.Port())95		c.Ports[port] = p.Port()96	}97	return nil98}99func (c *Container) Exec(cmds []string) (int, error) {100	return c.container.Exec(c.ctx, cmds)101}102func (c *Container) PrintLogs() {103	fmt.Println("--- Container Logs Start ---")104	for _, msg := range c.Logs.Msgs {105		fmt.Print(msg)106	}107	fmt.Println("--- Container Logs End ---")108}109func (c *Container) Terminate() error {...

testcontainers.go

Source:testcontainers.go

...6	"github.com/testcontainers/testcontainers-go/wait"7)8type TestContainers struct {9	env             map[string]string10	publishPorts    []string11	waitStrategy    wait.Strategy12	containerMounts []testcontainers.ContainerMount13	noStart         bool14	startupTimeout  int15}16func NewTestContainers() TestContainers {17	return TestContainers{startupTimeout: 20}18}19func (r TestContainers) WithEnv(env map[string]string) TestContainers {20	r.env = env21	return r22}23func (r TestContainers) WithMounts(containerMounts ...testcontainers.ContainerMount) TestContainers {24	r.containerMounts = append(r.containerMounts, containerMounts...)25	return r26}27func (r TestContainers) WithExposedPorts(values ...string) TestContainers {28	r.publishPorts = append(r.publishPorts, values...)29	return r30}31func (r TestContainers) WithWaitingFor(waitStrategy wait.Strategy) TestContainers {32	r.waitStrategy = waitStrategy33	return r34}35func (r TestContainers) WithNoStart() TestContainers {36	r.noStart = true37	return r38}39func (r TestContainers) WithTimeout(t int) TestContainers {40	r.startupTimeout = t41	return r42}43func (r TestContainers) Execute(imageID string) (testcontainers.Container, error) {44	req := testcontainers.ContainerRequest{45		Image:        imageID,46		ExposedPorts: r.publishPorts,47		WaitingFor:   r.waitStrategy,48		Env:          r.env,49		Mounts:       r.containerMounts,50		SkipReaper: true,51	}52	c, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(r.startupTimeout))53	defer cancel()54	return testcontainers.GenericContainer(c, testcontainers.GenericContainerRequest{55		ContainerRequest: req,56		Started:          !r.noStart,57	})58}...

testcontainer.go

Source:testcontainer.go

...6	"strings"7	"github.com/testcontainers/testcontainers-go"8	"github.com/testcontainers/testcontainers-go/wait"9)10func SetupINetMockContainer(ctx context.Context, exposedPorts ...string) (testcontainers.Container, error) {11	//nolint:dogsled12	_, fileName, _, _ := runtime.Caller(0)13	var err error14	var repoRoot string15	if repoRoot, err = filepath.Abs(filepath.Join(filepath.Dir(fileName), "..", "..", "..")); err != nil {16		return nil, err17	}18	tcpPortPresent := false19	for _, port := range exposedPorts {20		if strings.Contains(port, "tcp") {21			tcpPortPresent = true22		}23	}24	if !tcpPortPresent {25		exposedPorts = append(exposedPorts, "80/tcp")26	}27	req := testcontainers.ContainerRequest{28		FromDockerfile: testcontainers.FromDockerfile{29			Context:       repoRoot,30			Dockerfile:    filepath.Join(".", "testdata", "integration.dockerfile"),31			PrintBuildLog: true,32		},33		ExposedPorts: exposedPorts,34		SkipReaper:   true,35		WaitingFor:   wait.ForLog("Startup of all endpoints completed"),36	}37	var imContainer testcontainers.Container38	imContainer, err = testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{39		ContainerRequest: req,40		Started:          true,41	})42	if err != nil {43		return nil, err44	}45	return imContainer, nil46}...

Ports

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	redis, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	port, err := redis.MappedPort(ctx, "6379/tcp")14	if err != nil {15		log.Fatal(err)16	}17	fmt.Println(port.Int())18}

Ports

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"6379/tcp"},6		WaitingFor:   wait.ForLog("Ready to accept connections"),7	}8	redisContainer, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	mappedPort, _ := redisContainer.MappedPort(ctx, "6379")11	fmt.Println(mappedPort.Int())12	host, _ := redisContainer.Host(ctx)13	fmt.Println(host)14	id, _ := redisContainer.ContainerID(ctx)15	fmt.Println(id)16	info, _ := redisContainer.Inspect(ctx)17	fmt.Println(info.Name)18	logs, _ := redisContainer.Logs(ctx)19	fmt.Println(logs)20	redisContainer.Terminate(ctx)21}

Ports

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.Fatal(err)12	}13	defer redisContainer.Terminate(ctx)14	mappedPort, err := redisContainer.MappedPort(ctx, "6379/tcp")15	if err != nil {16		log.Fatal(err)17	}18	fmt.Printf("Redis port is %s", mappedPort.Port())19}20import (21func main() {22	ctx := context.Background()23	req := testcontainers.ContainerRequest{24		ExposedPorts: []string{"6379/tcp"},25		WaitingFor:   wait.ForListeningPort("6379/tcp"),26	}27	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28	})29	if err != nil {30		log.Fatal(err)31	}32	defer redisContainer.Terminate(ctx)33	host, err := redisContainer.Host(ctx)34	if err != nil {35		log.Fatal(err)36	}37	fmt.Printf("Redis host is %s", host)38}39import (40func main() {41	ctx := context.Background()42	req := testcontainers.ContainerRequest{43		ExposedPorts: []string{"6379/tcp"},44		WaitingFor:   wait.ForListeningPort("6379/tcp"),45	}46	redisContainer, err := testcontainers.GenericContainer(ctx

Ports

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	redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")15	if err != nil {16		panic(err)17	}18	fmt.Println(redisPort.Int())19	time.Sleep(60 * time.Second)20}21import (22func main() {23	ctx := context.Background()24	req := testcontainers.ContainerRequest{25		ExposedPorts: []string{"6379/tcp"},26		WaitingFor:   wait.ForListeningPort("6379/tcp"),27	}28	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{29	})30	if err != nil {31		panic(err)32	}33	defer redisContainer.Terminate(ctx)34	redisHost, err := redisContainer.Host(ctx)35	if err != nil {36		panic(err)37	}38	fmt.Println(redisHost)39	time.Sleep(60 * time.Second)40}

Ports

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.Fatal(err)12	}13	port, err := redisContainer.MappedPort(ctx, "6379")14	if err != nil {15		log.Fatal(err)16	}17	fmt.Println(port.Int())18}19import (20func main() {21	ctx := context.Background()22	req := testcontainers.ContainerRequest{23		ExposedPorts: []string{"6379/tcp"},24		WaitingFor:   wait.ForListeningPort("6379/tcp"),25	}26	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{27	})28	if err != nil {29		log.Fatal(err)30	}31	host, err := redisContainer.Host(ctx)32	if err != nil {33		log.Fatal(err)34	}35	port, err := redisContainer.MappedPort(ctx, "6379")36	if err != nil {37		log.Fatal(err)38	}39	fmt.Println(host)40	fmt.Println(port.Int())41}

Ports

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	postgres, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatalf("Could not start container: %v", err)12	}13	defer postgres.Terminate(ctx)14	ip, err := postgres.Host(ctx)15	if err != nil {16		log.Fatalf("Could not get container IP: %v", err)17	}18	mappedPort, err := postgres.MappedPort(ctx, "5432/tcp")19	if err != nil {20		log.Fatalf("Could not get mapped port: %v", err)21	}22	fmt.Printf("Host: %s, Port: %s", ip, mappedPort.Port())

Ports

Using AI Code Generation

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

Ports

Using AI Code Generation

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

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