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How to use getDefaultGatewayIP method of testcontainers Package

Best Testcontainers-go code snippet using testcontainers.getDefaultGatewayIP

docker.go

Source:docker.go

...857	case "unix", "npipe":858		if inAContainer() {859			ip, err := p.GetGatewayIP(ctx)860			if err != nil {861				// fallback to getDefaultGatewayIP862				ip, err = getDefaultGatewayIP()863				if err != nil {864					ip = "localhost"865				}866			}867			p.hostCache = ip868		} else {869			p.hostCache = "localhost"870		}871	default:872		return "", errors.New("Could not determine host through env or docker host")873	}874	return p.hostCache, nil875}876// CreateNetwork returns the object representing a new network identified by its name877func (p *DockerProvider) CreateNetwork(ctx context.Context, req NetworkRequest) (Network, error) {878	var err error879	// Make sure that bridge network exists880	// In case it is disabled we will create reaper_default network881	p.defaultNetwork, err = getDefaultNetwork(ctx, p.client)882	if req.Labels == nil {883		req.Labels = make(map[string]string)884	}885	nc := types.NetworkCreate{886		Driver:         req.Driver,887		CheckDuplicate: req.CheckDuplicate,888		Internal:       req.Internal,889		EnableIPv6:     req.EnableIPv6,890		Attachable:     req.Attachable,891		Labels:         req.Labels,892	}893	sessionID := uuid.New()894	var termSignal chan bool895	if !req.SkipReaper {896		r, err := NewReaper(ctx, sessionID.String(), p, req.ReaperImage)897		if err != nil {898			return nil, fmt.Errorf("%w: creating network reaper failed", err)899		}900		termSignal, err = r.Connect()901		if err != nil {902			return nil, fmt.Errorf("%w: connecting to network reaper failed", err)903		}904		for k, v := range r.Labels() {905			if _, ok := req.Labels[k]; !ok {906				req.Labels[k] = v907			}908		}909	}910	response, err := p.client.NetworkCreate(ctx, req.Name, nc)911	if err != nil {912		return &DockerNetwork{}, err913	}914	n := &DockerNetwork{915		ID:                response.ID,916		Driver:            req.Driver,917		Name:              req.Name,918		terminationSignal: termSignal,919		provider:          p,920	}921	return n, nil922}923// GetNetwork returns the object representing the network identified by its name924func (p *DockerProvider) GetNetwork(ctx context.Context, req NetworkRequest) (types.NetworkResource, error) {925	networkResource, err := p.client.NetworkInspect(ctx, req.Name, types.NetworkInspectOptions{926		Verbose: true,927	})928	if err != nil {929		return types.NetworkResource{}, err930	}931	return networkResource, err932}933func (p *DockerProvider) GetGatewayIP(ctx context.Context) (string, error) {934	// Use a default network as defined in the DockerProvider935	if p.defaultNetwork == "" {936		var err error937		p.defaultNetwork, err = getDefaultNetwork(ctx, p.client)938		if err != nil {939			return "", err940		}941	}942	nw, err := p.GetNetwork(ctx, NetworkRequest{Name: p.defaultNetwork})943	if err != nil {944		return "", err945	}946	var ip string947	for _, config := range nw.IPAM.Config {948		if config.Gateway != "" {949			ip = config.Gateway950			break951		}952	}953	if ip == "" {954		return "", errors.New("Failed to get gateway IP from network settings")955	}956	return ip, nil957}958func inAContainer() bool {959	// see https://github.com/testcontainers/testcontainers-java/blob/3ad8d80e2484864e554744a4800a81f6b7982168/core/src/main/java/org/testcontainers/dockerclient/DockerClientConfigUtils.java#L15960	if _, err := os.Stat("/.dockerenv"); err == nil {961		return true962	}963	return false964}965// deprecated966// see https://github.com/testcontainers/testcontainers-java/blob/main/core/src/main/java/org/testcontainers/dockerclient/DockerClientConfigUtils.java#L46967func getDefaultGatewayIP() (string, error) {968	// see https://github.com/testcontainers/testcontainers-java/blob/3ad8d80e2484864e554744a4800a81f6b7982168/core/src/main/java/org/testcontainers/dockerclient/DockerClientConfigUtils.java#L27969	cmd := exec.Command("sh", "-c", "ip route|awk '/default/ { print $3 }'")970	stdout, err := cmd.Output()971	if err != nil {972		return "", errors.New("Failed to detect docker host")973	}974	ip := strings.TrimSpace(string(stdout))975	if len(ip) == 0 {976		return "", errors.New("Failed to parse default gateway IP")977	}978	return string(ip), nil979}980func getDefaultNetwork(ctx context.Context, cli *client.Client) (string, error) {981	// Get list of available networks...

compose_provider.go

Source:compose_provider.go

...283	case "unix", "npipe":284		if inAContainer() {285			ip, err := p.GetGatewayIP(ctx)286			if err != nil {287				// fallback to getDefaultGatewayIP288				ip, err = getDefaultGatewayIP()289				if err != nil {290					ip = localhost291				}292			}293			p.hostCache = ip294		} else {295			p.hostCache = localhost296		}297	default:298		return "", errors.New("could not determine host through env or docker host")299	}300	return p.hostCache, nil301}302// GetNetwork returns the object representing the network identified by its name303func (p *DockerProvider) GetNetwork(ctx context.Context, req NetworkRequest) (types.NetworkResource, error) {304	networkResource, err := p.client.NetworkInspect(ctx, req.Name, types.NetworkInspectOptions{305		Verbose: true,306	})307	if err != nil {308		return types.NetworkResource{}, err309	}310	return networkResource, err311}312func (p *DockerProvider) GetGatewayIP(ctx context.Context) (string, error) {313	// Use a default network as defined in the DockerProvider314	var err error315	if p.defaultNetwork == "" {316		p.defaultNetwork, err = getDefaultNetwork(ctx, p.client)317		if err != nil {318			return "", err319		}320	}321	nw, err := p.GetNetwork(ctx, NetworkRequest{Name: p.defaultNetwork})322	if err != nil {323		return "", err324	}325	var ip string326	for _, config := range nw.IPAM.Config {327		if config.Gateway != "" {328			ip = config.Gateway329			break330		}331	}332	if ip == "" {333		return "", errors.New("failed to get gateway IP from network settings")334	}335	return ip, nil336}337func inAContainer() bool {338	if _, err := os.Stat("/.dockerenv"); err == nil {339		return true340	}341	return false342}343// deprecated344func getDefaultGatewayIP() (string, error) {345	cmd := exec.Command("sh", "-c", "ip route|awk '/default/ { print $3 }'")346	stdout, err := cmd.Output()347	if err != nil {348		return "", errors.New("failed to detect docker host")349	}350	ip := strings.TrimSpace(string(stdout))351	if ip == "" {352		return "", errors.New("failed to parse default gateway IP")353	}354	return ip, nil355}356func getDefaultNetwork(ctx context.Context, cli *client.Client) (string, error) {357	// Get list of available networks358	networkResources, err := cli.NetworkList(ctx, types.NetworkListOptions{})...

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3    ctx := context.Background()4    req := testcontainers.ContainerRequest{5        ExposedPorts: []string{"8080/tcp"},6        WaitingFor:   wait.ForListeningPort("8080/tcp"),7    }8    ryukContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9    })10    if err != nil {11        log.Fatalf("Could not start container: %v", err)12    }13    defer ryukContainer.Terminate(ctx)14    ip, err := testcontainers.GetDockerClient().DefaultGatewayIP(ctx)15    if err != nil {16        log.Fatalf("Could not get docker gateway IP: %v", err)17    }18    fmt.Printf("Docker gateway IP: %s", ip)19}

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3    gatewayIP, err := testcontainers.GetDefaultGatewayIP()4    if err != nil {5        fmt.Println("Error in getting gateway IP")6    }7    fmt.Printf("Gateway IP: %s8}

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3	ctx := context.Background()4	req := testcontainers.ContainerRequest{5		ExposedPorts: []string{"80/tcp"},6		WaitingFor:   wait.ForLog("listening on"),7	}8	c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{9	})10	if err != nil {11		log.Fatalf("Could not start container: %v", err)12	}13	ip, err := c.Host(ctx)14	if err != nil {15		log.Fatalf("Could not get container IP: %v", err)16	}17	port, err := c.MappedPort(ctx, "80")18	if err != nil {19		log.Fatalf("Could not get container port: %v", err)20	}21	gatewayIP, err := testcontainers.GetDefaultGatewayIP()22	if err != nil {23		log.Fatalf("Could not get container gateway IP: %v", err)24	}25	fmt.Printf("Container IP: %s, Port: %s, Gateway IP: %s", ip, port.Port(), gatewayIP)26}

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3	ip, err := testcontainers.getDefaultGatewayIP()4	if err != nil {5		fmt.Println("Error:", err)6	}7	fmt.Println("Default Gateway IP:", ip)8}9import (10func main() {11	ip, err := testcontainers.getContainerIP("containerName")12	if err != nil {13		fmt.Println("Error:", err)14	}15	fmt.Println("Container IP:", ip)16}17import (18func main() {19	ip, err := testcontainers.getContainerIP("containerName")20	if err != nil {21		fmt.Println("Error:", err)22	}23	fmt.Println("Container IP:", ip)24}25import (26func main() {27	ip, err := testcontainers.getContainerIP("containerName")28	if err != nil {29		fmt.Println("Error:", err)30	}31	fmt.Println("Container IP:", ip)32}33import (34func main() {35	ip, err := testcontainers.getContainerIP("containerName")36	if err != nil {37		fmt.Println("Error:", err)38	}39	fmt.Println("Container IP:", ip)40}41import (42func main() {43	ip, err := testcontainers.getContainerIP("containerName")44	if err != nil {45		fmt.Println("Error:", err)46	}47	fmt.Println("Container IP:", ip)48}49import (50func main() {

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3	gatewayIP, _ := testcontainers.GetDefaultGatewayIP()4	fmt.Println(gatewayIP)5}6import (7func main() {8	dockerBridgeIP, _ := testcontainers.GetDockerBridgeIP()9	fmt.Println(dockerBridgeIP)10}11import (12func main() {13	dockerHost, _ := testcontainers.GetDockerHost()14	fmt.Println(dockerHost)15}16import (17func main() {18	dockerHostIP, _ := testcontainers.GetDockerHostIP()19	fmt.Println(dockerHostIP)20}21import (22func main() {23	ctx := context.Background()24	req := testcontainers.ContainerRequest{25		ExposedPorts: []string{"80/tcp"},26		WaitingFor:   wait.ForLog("Ready to accept connections"),27	}28	c, _ := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{29	})30	port, _ := c.MappedPort(ctx, "80/tcp")31	fmt.Println(port.Int())32}33import (34func main() {35	ctx := context.Background()36	req := testcontainers.ContainerRequest{37		ExposedPorts: []string{"80

getDefaultGatewayIP

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	fmt.Println(ip)19	port, err := postgresContainer.MappedPort(ctx, "5432")20	if err != nil {21		log.Fatal(err)22	}23	fmt.Println(port.Int())24}25import (26func main() {27	ctx := context.Background()28	req := testcontainers.ContainerRequest{29		ExposedPorts: []string{"5432/tcp"},30		WaitingFor:   wait.ForListeningPort("5432/tcp"),31	}32	postgresContainer, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{33	})34	if err != nil {35		log.Fatal(err)36	}37	defer postgresContainer.Terminate(ctx)38	ip, err := postgresContainer.Host(ctx)39	if err != nil {40		log.Fatal(err)41	}42	fmt.Println(ip)43	port, err := postgresContainer.MappedPort(ctx, "5432")44	if err != nil {45		log.Fatal(err)46	}47	fmt.Println(port.Int())48}49import (50func main()

getDefaultGatewayIP

Using AI Code Generation

1import (2func main() {3    testcontainers.getDefaultGatewayIP()4}5import (6func main() {7    testcontainers.getDockerClient()8}9import (10func main() {11    testcontainers.getDockerHost()12}13import (14func main() {15    testcontainers.getDockerHostIP()16}17import (18func main() {19    testcontainers.getDockerHostIPFromEnv()20}21import (22func main() {23    testcontainers.getDockerHostIPFromHostsFile()24}25import (26func main() {27    testcontainers.getDockerHostIPFromRoute()28}29import (30func main() {31    testcontainers.getDockerHostIPFromSocket()32}33import (34func main() {35    testcontainers.getDockerHostIPFromURL()36}37import (38func main() {39    testcontainers.getDockerHostIPFromURL()40}

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