TestMu Conference is Back! Future of Testing + AI LambdaTest G2 Announcement

How to use getMeta method of gce Package

Best Syzkaller code snippet using gce.getMeta

host.go

Source:host.go

...35}36// GetPayload builds a metadata payload every time is called.37// Some data is collected only once, some is cached, some is collected at every call.38func GetPayload(hostnameData util.HostnameData) *Payload {39	meta := getMeta(hostnameData)40	meta.Hostname = hostnameData.Hostname41	p := &Payload{42		Os:            osName,43		AgentFlavor:   config.AgentFlavor,44		PythonVersion: GetPythonVersion(),45		SystemStats:   getSystemStats(),46		Meta:          meta,47		HostTags:      getHostTags(),48		ContainerMeta: getContainerMeta(1 * time.Second),49		NetworkMeta:   getNetworkMeta(),50		LogsMeta:      getLogsMeta(),51		InstallMethod: getInstallMethod(getInstallInfoPath()),52	}53	// Cache the metadata for use in other payloads54	key := buildKey("payload")55	cache.Cache.Set(key, p, cache.NoExpiration)56	return p57}58// GetPayloadFromCache returns the payload from the cache if it exists, otherwise it creates it.59// The metadata reporting should always grab it fresh. Any other uses, e.g. status, should use this60func GetPayloadFromCache(hostnameData util.HostnameData) *Payload {61	key := buildKey("payload")62	if x, found := cache.Cache.Get(key); found {63		return x.(*Payload)64	}65	return GetPayload(hostnameData)66}67// GetMeta grabs the metadata from the cache and returns it,68// if the cache is empty, then it queries the information directly69func GetMeta(hostnameData util.HostnameData) *Meta {70	key := buildKey("meta")71	if x, found := cache.Cache.Get(key); found {72		return x.(*Meta)73	}74	return getMeta(hostnameData)75}76// GetPythonVersion returns the version string as provided by the embedded Python77// interpreter.78func GetPythonVersion() string {79	// retrieve the Python version from the Agent cache80	if x, found := cache.Cache.Get(cache.BuildAgentKey("pythonVersion")); found {81		return x.(string)82	}83	return "n/a"84}85// getHostAliases returns the hostname aliases from different provider86// This should include GCE, Azure, Cloud foundry, kubernetes87func getHostAliases() []string {88	aliases := []string{}89	alibabaAlias, err := alibaba.GetHostAlias()90	if err != nil {91		log.Debugf("no Alibaba Host Alias: %s", err)92	} else if alibabaAlias != "" {93		aliases = append(aliases, alibabaAlias)94	}95	azureAlias, err := azure.GetHostAlias()96	if err != nil {97		log.Debugf("no Azure Host Alias: %s", err)98	} else if azureAlias != "" {99		aliases = append(aliases, azureAlias)100	}101	gceAlias, err := gce.GetHostAlias()102	if err != nil {103		log.Debugf("no GCE Host Alias: %s", err)104	} else {105		aliases = append(aliases, gceAlias)106	}107	cfAliases, err := cloudfoundry.GetHostAliases()108	if err != nil {109		log.Debugf("no Cloud Foundry Host Alias: %s", err)110	} else if cfAliases != nil {111		aliases = append(aliases, cfAliases...)112	}113	k8sAlias, err := kubelet.GetHostAlias()114	if err != nil {115		log.Debugf("no Kubernetes Host Alias (through kubelet API): %s", err)116	} else if k8sAlias != "" {117		aliases = append(aliases, k8sAlias)118	}119	tencentAlias, err := tencent.GetHostAlias()120	if err != nil {121		log.Debugf("no Tencent Host Alias: %s", err)122	} else if tencentAlias != "" {123		aliases = append(aliases, tencentAlias)124	}125	return aliases126}127// getMeta grabs the information and refreshes the cache128func getMeta(hostnameData util.HostnameData) *Meta {129	hostname, _ := os.Hostname()130	tzname, _ := time.Now().Zone()131	ec2Hostname, _ := ec2.GetHostname()132	instanceID, _ := ec2.GetInstanceID()133	var agentHostname string134	if config.Datadog.GetBool("hostname_force_config_as_canonical") &&135		hostnameData.Provider == util.HostnameProviderConfiguration {136		agentHostname = hostnameData.Hostname137	}138	m := &Meta{139		SocketHostname: hostname,140		Timezones:      []string{tzname},141		SocketFqdn:     util.Fqdn(hostname),142		EC2Hostname:    ec2Hostname,143		HostAliases:    getHostAliases(),144		InstanceID:     instanceID,145		AgentHostname:  agentHostname,146	}147	// Cache the metadata for use in other payload148	key := buildKey("meta")149	cache.Cache.Set(key, m, cache.NoExpiration)150	return m151}152func getNetworkMeta() *NetworkMeta {153	nid, err := util.GetNetworkID()154	if err != nil {155		log.Infof("could not get network metadata: %s", err)156		return nil157	}158	return &NetworkMeta{ID: nid}159}160func getContainerMeta(timeout time.Duration) map[string]string {161	wg := sync.WaitGroup{}162	containerMeta := make(map[string]string)163	// protecting the above map from concurrent access164	mutex := &sync.Mutex{}165	for provider, getMeta := range container.DefaultCatalog {166		wg.Add(1)167		go func(provider string, getMeta container.MetadataProvider) {168			defer wg.Done()169			meta, err := getMeta()170			if err != nil {171				log.Debugf("Unable to get %s metadata: %s", provider, err)172				return173			}174			mutex.Lock()175			for k, v := range meta {176				containerMeta[k] = v177			}178			mutex.Unlock()179		}(provider, getMeta)180	}181	// we want to timeout even if the wait group is not done yet182	c := make(chan struct{})183	go func() {184		defer close(c)185		wg.Wait()186	}()187	select {188	case <-c:189		return containerMeta190	case <-time.After(timeout):191		// in this case the map might be incomplete so return a copy to avoid race192		incompleteMeta := make(map[string]string)193		mutex.Lock()...

getMeta

Using AI Code Generation

1import (2func main() {3        gce := metadata.NewGCE()4        if gce.OnGCE() {5                fmt.Println("On GCE")6        } else {7                fmt.Println("Not on GCE")8        }9        fmt.Println(gce.GetMeta("instance/name"))10}

getMeta

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    id, err := metadata.InstanceID()5    if err != nil {6        fmt.Println("error:", err)7    }8    fmt.Println(id)9}

getMeta

Using AI Code Generation

1import (2func main() {3	projectID, err := metadata.ProjectID()4	if err != nil {5		fmt.Println("Error getting project ID: %v", err)6	}7	fmt.Println("Project ID: %s", projectID)8}

getMeta

Using AI Code Generation

1import (2func main() {3    gce := new(gce.Gce)4    gce.Init("myproject")5    meta := gce.GetMeta()6    fmt.Println(meta)7}8import (9type Gce struct {10}11func (gce *Gce) Init(project string) {12}13func (gce *Gce) GetMeta() string {14    if err != nil {15        fmt.Println(err)16    }17    defer resp.Body.Close()18    body, err := ioutil.ReadAll(resp.Body)19    if err != nil {20        fmt.Println(err)21    }22    return string(body)23}

getMeta

Using AI Code Generation

1import (2func main() {3	gce := gce.NewGCE()4	fmt.Println(gce.GetMeta("instance/name"))5}6import (7type GCE struct {8}9func NewGCE() *GCE {10	return &GCE{}11}12func (gce *GCE) GetMeta(path string) string {13	req, _ := http.NewRequest("GET", url, nil)14	req.Header.Add("Metadata-Flavor", "Google")15	client := &http.Client{}16	resp, _ := client.Do(req)17	defer resp.Body.Close()18	body, _ := ioutil.ReadAll(resp.Body)19	return string(body)20}21'](metadata.items.key,metadata.items.value)"22'](metadata.items.key,metadata.items.value)" | grep startup-script23'](metadata.items.key,metadata.items.value)"

getMeta

Using AI Code Generation

1import (2func main() {3    val := gce.GetMeta(key)4    fmt.Println(val)5}6import (7func GetMeta(key string) string {8    client := &http.Client{}9    req, _ := http.NewRequest("GET", url, nil)10    req.Header.Add("Metadata-Flavor", "Google")11    resp, _ := client.Do(req)12    body, _ := ioutil.ReadAll(resp.Body)13    return string(body)14}

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.