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}

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