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How to use CopyFileFromContainer method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.CopyFileFromContainer

container.go

Source:container.go

...319		return err320	}321	return (*container.container).CopyToContainer(ctx, fileContent, containerFilePath, fileMode)322}323func (container *Container) CopyFileFromContainer(ctx context.Context, filePath string) (io.ReadCloser, error) {324	if err := container.assertStarted("CopyFileFromContainer"); err != nil {325		return nil, err326	}327	return (*container.container).CopyFileFromContainer(ctx, filePath)328}329// Will create any networks that don't already exist on system.330// Teardown/cleanup is handled by the testcontainers reaper.331func (container Container) createNetworksIfNecessary(req testcontainers.GenericContainerRequest) error {332	provider, err := req.ProviderType.GetProvider()333	if err != nil {334		return err335	}336	for _, networkName := range container.ContainerNetworks {337		query := testcontainers.NetworkRequest{338			Name: networkName,339		}340		networkResource, err := provider.GetNetwork(context.Background(), query)341		if err != nil && !errdefs.IsNotFound(err) {...

test_utils.go

Source:test_utils.go

...198	container.StartLogProducer(ctx)199	container.FollowOutput(&TestLogConsumer{})200	return container, err201}202// CopyFileFromContainer will copy a file from a given docker container.203func CopyFileFromContainer(ctx context.Context, container testcontainers.Container, srcPath, dstPath string) error {204	reader, err := container.CopyFileFromContainer(ctx, srcPath)205	if err != nil {206		return err207	}208	defer reader.Close()209	b, err := ioutil.ReadAll(reader)210	if err != nil {211		return err212	}213	return ioutil.WriteFile(dstPath, b, 0644)214}215// DoHttpRequest will perform the http request.216func DoHttpRequest(method, url string, body []byte) ([]byte, error) {217	client := &http.Client{}218	req, err := http.NewRequest(method, url, bytes.NewBuffer(body))...

testcontainer_test.go

Source:testcontainer_test.go

...24		Started:          true,25	})26	require.NoError(t, err)27	defer k3sC.Terminate(ctx)28	reader, err := k3sC.CopyFileFromContainer(ctx, "/etc/rancher/k3s/k3s.yaml")29	require.NoError(t, err)30	res,err := ioutil.ReadAll(reader)31	require.NoError(t, err)32	port, err := k3sC.MappedPort(ctx, "6443/tcp")33	require.NoError(t, err)34	host, err := k3sC.Host(ctx)35	require.NoError(t, err)36	err, client := CreateClientSetFromBytes(res, host, port)37	require.NoError(t, err)38	depl := Deployment()39	depl, err = client.CreateDeployment(depl)40	require.NoError(t, err)41	err = client.AwaitDeploymentReady(depl.Name, depl.Namespace, 120)42	require.NoError(t, err)...

CopyFileFromContainer

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	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	id, err := c.ContainerID(ctx)15	if err != nil {16		log.Fatal(err)17	}18	ip, err := c.Host(ctx)19	if err != nil {20		log.Fatal(err)21	}22	port, err := c.MappedPort(ctx, "80")23	if err != nil {24		log.Fatal(err)25	}26	fmt.Printf("Container ID: %s, Host IP: %s, Mapped port: %s", id, ip, port.Port())27	docker, err := client.NewClientWithOpts(client.FromEnv)28	if err != nil {29		log.Fatal(err)30	}31	file, err := os.Create("test.txt")32	if err != nil {33		log.Fatal(err)34	}35	defer file.Close()36	err = docker.CopyToContainer(ctx, id, "/tmp", file, types.CopyToContainerOptions{})37	if err != nil {38		log.Fatal(err)39	}40	out, err := os.Create("test2.txt")41	if err != nil {42		log.Fatal(err)43	}44	defer out.Close()

CopyFileFromContainer

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"sh", "-c", "echo hello > /tmp/file.txt"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   wait.ForLog("hello"),8	}9	alpine, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	defer alpine.Terminate(ctx)15	fileContent, err := alpine.CopyFileFromContainer(ctx, "/tmp/file.txt")16	if err != nil {17		log.Fatal(err)18	}19	fmt.Println(string(fileContent))20}21import (22func main() {23	ctx := context.Background()24	req := testcontainers.ContainerRequest{25		Cmd:          []string{"sh", "-c", "cat /tmp/file.txt"},26		ExposedPorts: []string{"80/tcp"},27		WaitingFor:   wait.ForLog("hello"),28	}29	alpine, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{30	})31	if err != nil {32		log.Fatal(err)33	}34	defer alpine.Terminate(ctx)35	fileContent := []byte("hello")36	err = alpine.CopyFileToContainer(ctx, "/tmp/file.txt", fileContent)37	if err != nil {38		log.Fatal(err)39	}40	output, err := alpine.Exec(ctx, []string{"cat", "/tmp/file.txt"})41	if err != nil {42		log.Fatal(err)43	}44	fmt.Println(string(output))45}

CopyFileFromContainer

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	docker, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())5	if err != nil {6		panic(err)7	}8	req := testcontainers.ContainerRequest{9		Cmd:          []string{"sh", "-c", "echo hello > /hello.txt"},10		ExposedPorts: []string{"80/tcp"},11		WaitingFor:   wait.ForLog("hello"),12	}13	testContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{14	})15	if err != nil {16		panic(err)17	}18	err = testContainer.CopyFileFromContainer(ctx, "/hello.txt", "hello.txt")19	if err != nil {20		panic(err)21	}22	file, err := os.Open("hello.txt")23	if err != nil {24		panic(err)25	}26	defer file.Close()27	io.Copy(os.Stdout, file)28	err = testContainer.Terminate(ctx)29	if err != nil {30		panic(err)31	}32}33import (34func main() {35	ctx := context.Background()36	docker, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())

CopyFileFromContainer

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		Cmd:          []string{"sh", "-c", "echo 'Hello from container' > /test.txt"},6		ExposedPorts: []string{"80/tcp"},7		WaitingFor:   testcontainers.WaitingForLog("Hello from container"),8	}9	container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10	})11	if err != nil {12		log.Fatal(err)13	}14	defer container.Terminate(ctx)15	host, err := container.Host(ctx)16	if err != nil {17		log.Fatal(err)18	}19	port, err := container.MappedPort(ctx, "80")20	if err != nil {21		log.Fatal(err)22	}23	log.Printf("Container is listening on %s:%s", host, port.Port())24	err = container.CopyFileFromContainer(ctx, "/test.txt", "test.txt")25	if err != nil {26		log.Fatal(err)27	}28	file, err := ioutil.ReadFile("test.txt")29	if err != nil {30		log.Fatal(err)31	}32	log.Printf("File content: %s", file)33}

CopyFileFromContainer

Using AI Code Generation

1import (2func main() {3	req := testcontainers.ContainerRequest{4		Cmd:          []string{"sh", "-c", "echo 'Hello world!' > /tmp/test.txt"},5		ExposedPorts: []string{"22/tcp"},6		WaitingFor:   wait.ForLog("Hello world!"),7	}8	ctx := context.Background()9	provider, err := testcontainers.NewDockerProvider()10	if err != nil {11		log.Fatal(err)12	}13	container, err := testcontainers.GenericContainer(ctx, provider, req)14	if err != nil {15		log.Fatal(err)16	}17	err = container.CopyFileFromContainer(ctx, "/tmp/test.txt", "test.txt")18	if err != nil {19		log.Fatal(err)20	}21	content, err := ioutil.ReadFile("test.txt")22	if err != nil {23		log.Fatal(err)24	}25	fmt.Println(string(content))26	err = container.Terminate(ctx)27	if err != nil {28		log.Fatal(err)29	}30	err = os.Remove("test.txt")31	if err != nil {32		log.Fatal(err)33	}34}

CopyFileFromContainer

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"80/tcp"},6		Cmd:          []string{"sh", "-c", "while true; do echo hello world; sleep 1; done"},7		WaitingFor:   wait.ForLog("hello world"),8	}

CopyFileFromContainer

Using AI Code Generation

1func CopyFileFromContainer() {2    ctx := context.Background()3    req := testcontainers.ContainerRequest{4        Cmd:          []string{"sleep", "1h"},5        WaitingFor:   wait.ForLog("Listening on"),6        BindMounts:   map[string]string{"./": "/mnt"},7        ExposedPorts: []string{"8080/tcp"},8    }9    container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{10    })11    if err != nil {12        panic(err)13    }14    err = container.CopyFromContainer(ctx, "/mnt/1.go", "./2.go")15    if err != nil {16        panic(err)17    }18}19func CopyFileToContainer() {20    ctx := context.Background()21    req := testcontainers.ContainerRequest{22        Cmd:          []string{"sleep", "1h"},23        WaitingFor:   wait.ForLog("Listening on"),24        BindMounts:   map[string]string{"./": "/mnt"},25        ExposedPorts: []string{"8080/tcp"},26    }27    container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{28    })29    if err != nil {30        panic(err)31    }32    err = container.CopyToContainer(ctx, "./1.go", "/mnt/2.go")33    if err != nil {34        panic(err)35    }36}37func CopyFileToContainer() {38    ctx := context.Background()39    req := testcontainers.ContainerRequest{40        Cmd:          []string{"sleep", "1h"},41        WaitingFor:   wait.ForLog("Listening on"),

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