Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use Start method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.Start

testing_kafka_cluster.go

Source:testing_kafka_cluster.go

...18type TestingKafkaCluster struct {19	kafkaContainer     testcontainers.Container20	zookeeperContainer testcontainers.Container21}22func (kc *TestingKafkaCluster) StartCluster() error {23	ctx := context.Background()24	if err := kc.zookeeperContainer.Start(ctx); err != nil {25		return err26	}27	if err := kc.kafkaContainer.Start(ctx); err != nil {28		return err29	}30	if err := kc.createProbe(); err != nil {31		return err32	}33	return kc.startKafka()34}35func (kc *TestingKafkaCluster) StopCluster() error {36	ctx := context.Background()37	if err := kc.kafkaContainer.Terminate(ctx); err != nil {38		return err39	}40	if err := kc.zookeeperContainer.Terminate(ctx); err != nil {41		return err42	}43	return nil44}45func (kc *TestingKafkaCluster) GetKafkaHost() (string, error) {46	ctx := context.Background()47	host, err := kc.kafkaContainer.Host(ctx)48	if err != nil {49		return "", err50	}51	port, err := kc.kafkaContainer.MappedPort(ctx, KAFKA_CLIENT_PORT)52	if err != nil {53		return "", err54	}55	return host + ":" + port.Port(), nil56}57func (kc *TestingKafkaCluster) createProbe() error {58	probeScript, err := ioutil.TempFile("", "probe.sh")59	if err != nil {60		return err61	}62	defer os.Remove(probeScript.Name())63	probeScript.WriteString("#!/bin/bash \n")64	probeScript.WriteString(fmt.Sprintf("id=$(zookeeper-shell localhost:%s ls /brokers/ids | grep \"\\[%s\") \n", ZOOKEEPER_PORT, KAFKA_BROKER_ID))65	probeScript.WriteString(fmt.Sprintf("if [ $id = \"[%s]\" ]; then exit 0; else exit 1; fi", KAFKA_BROKER_ID))66	return kc.zookeeperContainer.CopyFileToContainer(context.Background(), probeScript.Name(), "probe.sh", 0700)67}68func (kc *TestingKafkaCluster) startKafka() error {69	ctx := context.Background()70	kafkaStartFile, err := ioutil.TempFile("", "testcontainers_start.sh")71	if err != nil {72		return err73	}74	defer os.Remove(kafkaStartFile.Name())75	exposedHost, err := kc.GetKafkaHost()76	if err != nil {77		return err78	}79	kafkaStartFile.WriteString("#!/bin/bash \n")80	kafkaStartFile.WriteString(fmt.Sprintf("export KAFKA_ADVERTISED_LISTENERS='PLAINTEXT://%s,BROKER://kafka:%s'\n", exposedHost, KAFKA_BROKER_PORT))81	kafkaStartFile.WriteString(". /etc/confluent/docker/bash-config \n")82	kafkaStartFile.WriteString("/etc/confluent/docker/configure \n")83	kafkaStartFile.WriteString("/etc/confluent/docker/launch \n")84	return kc.kafkaContainer.CopyFileToContainer(ctx, kafkaStartFile.Name(), "testcontainers_start.sh", 0700)85}86func NewTestingKafkaCluster() (*TestingKafkaCluster, error) {87	ctx := context.Background()88	network, err := testcontainers.GenericNetwork(ctx, testcontainers.GenericNetworkRequest{89		NetworkRequest: testcontainers.NetworkRequest{Name: CLUSTER_NETWORK_NAME},90	})91	if err != nil {92		return nil, err93	}94	dockerNetwork := network.(*testcontainers.DockerNetwork)95	zookeeperContainer, err := createZookeeperContainer(dockerNetwork)96	if err != nil {97		return nil, err98	}...

kafkacluster.go

Source:kafkacluster.go

...16type KafkaCluster struct {17	kafkaContainer testcontainers.Container18	zookeeperContainer testcontainers.Container19}20func (kc *KafkaCluster) StartCluster() {21	ctx := context.Background()22	kc.zookeeperContainer.Start(ctx)23	kc.kafkaContainer.Start(ctx)24	kc.startKafka()25}26func (kc *KafkaCluster) GetKafkaHost() string {27	ctx := context.Background()28	host, err := kc.kafkaContainer.Host(ctx)29	if err != nil {30		panic(err)31	}32	port, err := kc.kafkaContainer.MappedPort(ctx, KAFKA_CLIENT_PORT)33	if err != nil {34		panic(err)35	}36	// returns the exposed kafka host:port37	return host + ":" + port.Port()38}39func (kc *KafkaCluster) startKafka() {40	ctx := context.Background()41	kafkaStartFile, err := ioutil.TempFile("", "testcontainers_start.sh")42	if err != nil {43		panic(err)44	}45	defer os.Remove(kafkaStartFile.Name())46	// needs to set KAFKA_ADVERTISED_LISTENERS with the exposed kafka port47	exposedHost := kc.GetKafkaHost()48	kafkaStartFile.WriteString("#!/bin/bash \n")49	kafkaStartFile.WriteString("export KAFKA_ADVERTISED_LISTENERS='PLAINTEXT://" + exposedHost + ",BROKER://kafka:" + KAFKA_BROKER_PORT + "'\n")50	kafkaStartFile.WriteString(". /etc/confluent/docker/bash-config \n")51	kafkaStartFile.WriteString("/etc/confluent/docker/configure \n")52	kafkaStartFile.WriteString("/etc/confluent/docker/launch \n")53	err = kc.kafkaContainer.CopyFileToContainer(ctx, kafkaStartFile.Name(), "testcontainers_start.sh", 0700)54	if err != nil {55		panic(err)56	}57}58func NewKafkaCluster() *KafkaCluster {59	ctx := context.Background()60	// creates a network, so kafka and zookeeper can communicate directly61	network, err := testcontainers.GenericNetwork(ctx, testcontainers.GenericNetworkRequest{62		NetworkRequest: testcontainers.NetworkRequest{Name: CLUSTER_NETWORK_NAME},63	})64	if err != nil {65		panic(err)66	}67	dockerNetwork := network.(*testcontainers.DockerNetwork)...

testcontainers.go

Source:testcontainers.go

...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}...

Start

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        ExposedPorts: []string{"27017/tcp"},6        WaitingFor:   wait.ForListeningPort("27017/tcp"),7    }8    mongo, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9    })10    defer mongo.Terminate(ctx)11    ip, _ := mongo.Host(ctx)12    port, _ := mongo.MappedPort(ctx, "27017")13}14import (15func main() {16    ctx := context.Background()17    req := testcontainers.ContainerRequest{18        ExposedPorts: []string{"27017/tcp"},19        WaitingFor:   wait.ForListeningPort("27017/tcp"),20    }21    mongo, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{22    })23    defer mongo.Terminate(ctx)24    ip, _ := mongo.Host(ctx)25    port, _ := mongo.MappedPort(ctx, "27017")26}27import (28func main() {29    ctx := context.Background()30    req := testcontainers.ContainerRequest{31        ExposedPorts: []string{"27017/tcp"},32        WaitingFor:   wait.ForListeningPort("27017/tcp"),33    }34    mongo, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{35    })36    defer mongo.Terminate(ctx)37    ip, _ := mongo.Host(ctx)

Start

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		panic(err)12	}13	defer redis.Terminate(ctx)14	ip, err := redis.Host(ctx)15	if err != nil {16		panic(err)17	}18	mappedPort, err := redis.MappedPort(ctx, "6379")19	if err != nil {20		panic(err)21	}22	fmt.Printf("Redis is available at %s:%s", ip, mappedPort.Port())23}

Start

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		log.Fatal(err)12	}13	defer redisContainer.Terminate(ctx)14	redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")15	if err != nil {16		log.Fatal(err)17	}18	fmt.Println(redisPort.Int())19	time.Sleep(10 * time.Minute)20}21import (22func main() {23	ctx := context.Background()24	req := testcontainers.ContainerRequest{25		ExposedPorts: []string{"6379/tcp"},26		WaitingFor:   wait.ForLog("Ready to accept connections"),27	}28	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{29	})30	if err != nil {31		log.Fatal(err)32	}33	defer redisContainer.Terminate(ctx)34	redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")35	if err != nil {36		log.Fatal(err)37	}38	fmt.Println(redisPort.Int())39	time.Sleep(10 * time.Minute)40}41import (

Start

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		log.Fatal(err)12	}13	defer redisContainer.Terminate(ctx)14	ip, err := redisContainer.Host(ctx)15	if err != nil {16		log.Fatal(err)17	}18	port, err := redisContainer.MappedPort(ctx, "6379")19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(ip, port.Int())23	time.Sleep(10 * time.Minute)24}

Start

Using AI Code Generation

1import (2func TestStart(t *testing.T) {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        WaitingFor:   wait.ForLog("Ready to accept connections"),6    }7    redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{8    })9    if err != nil {10        log.Fatalf("Could not start container: %v", err)11    }12    defer redisContainer.Terminate(ctx)13    ip, err := redisContainer.Host(ctx)14    if err != nil {15        log.Fatalf("Could not get container IP: %v", err)16    }17    port, err := redisContainer.MappedPort(ctx, "6379/tcp")18    if err != nil {19        log.Fatalf("Could not get container port: %v", err)20    }21    fmt.Printf("Container port is %d, IP is %s\n", port.Int(), ip)22}

Start

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForHTTP("/").WithStartupTimeout(1 * time.Minute),7	}8	nginxContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	ip, err := nginxContainer.Host(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	if err != nil {22		log.Fatal(err)23	}24	fmt.Println(resp.Status)25	err = nginxContainer.Terminate(ctx)26	if err != nil {27		log.Fatal(err)28	}29	err = nginxContainer.Remove(ctx)30	if err != nil {31		log.Fatal(err)32	}33}

Start

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		panic(err)12	}13	port, err := postgresContainer.MappedPort(ctx, "5432")14	if err != nil {15		panic(err)16	}17	fmt.Println("Postgres port is: ", port.Int())18	os.Exit(0)19}20import (21func main() {22	ctx := context.Background()23	req := testcontainers.ContainerRequest{24		ExposedPorts: []string{"5432/tcp"},25		WaitingFor:   wait.ForListeningPort("5432/tcp"),26	}27	postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28	})29	if err != nil {30		panic(err)31	}32	port, err := postgresContainer.MappedPort(ctx, "5432")33	if err != nil {34		panic(err)35	}36	fmt.Println("Postgres port is: ", port.Int())37	postgresContainer.Terminate(ctx)38	os.Exit(0)39}40import (41func main() {42	ctx := context.Background()43	req := testcontainers.ContainerRequest{44		ExposedPorts: []string{"5432/tcp"},45		WaitingFor:   wait.ForListeningPort("5432/tcp"),46	}47	postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{

Start

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"3306/tcp"},6		WaitingFor:   wait.ForListeningPort("3306/tcp"),7	}8	mysqlContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatal(err)12	}13	defer mysqlContainer.Terminate(ctx)14	port, err := mysqlContainer.MappedPort(ctx, "3306")15	if err != nil {16		log.Fatal(err)17	}18	ip, err := mysqlContainer.Host(ctx)19	if err != nil {20		log.Fatal(err)21	}22	fmt.Println(port.Int())23	fmt.Println(ip)24}

Start

Using AI Code Generation

1import (2func main() {3	fmt.Println("Welcome to Testcontainers")4	ctx := context.Background()5	req := testcontainers.ContainerRequest{6		ExposedPorts: []string{"6379/tcp"},7		WaitingFor:   wait.ForLog("Ready to accept connections"),8	}9	redisContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	defer redisContainer.Terminate(ctx)15	ip, err := redisContainer.Host(ctx)16	if err != nil {17		log.Fatal(err)18	}19	port, err := redisContainer.MappedPort(ctx, "6379/tcp")20	if err != nil {21		log.Fatal(err)22	}23	fmt.Printf("Container IP: %s, Port: %s", ip, port.Port())24	time.Sleep(5 * time.Minute)25}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.