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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "net/http" | ||
| "os" | ||
| "time" | ||
|
|
||
| "cloud.google.com/go/compute/metadata" | ||
| "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
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| var deploymentDetailsMap map[string]string | ||
| var log *logrus.Logger | ||
|
|
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| func init() { | ||
| initializeLogger() | ||
| // Use a goroutine to ensure loadDeploymentDetails()'s GCP API | ||
| // calls don't block non-GCP deployments. See issue #685. | ||
| go loadDeploymentDetails() | ||
| } | ||
|
|
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| func initializeLogger() { | ||
| log = logrus.New() | ||
| log.Level = logrus.DebugLevel | ||
| log.Formatter = &logrus.JSONFormatter{ | ||
| FieldMap: logrus.FieldMap{ | ||
| logrus.FieldKeyTime: "timestamp", | ||
| logrus.FieldKeyLevel: "severity", | ||
| logrus.FieldKeyMsg: "message", | ||
| }, | ||
| TimestampFormat: time.RFC3339Nano, | ||
| } | ||
| log.Out = os.Stdout | ||
| } | ||
|
|
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| func loadDeploymentDetails() { | ||
| deploymentDetailsMap = make(map[string]string) | ||
| var metaServerClient = metadata.NewClient(&http.Client{}) | ||
|
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| podHostname, err := os.Hostname() | ||
| if err != nil { | ||
| log.Error("Failed to fetch the hostname for the Pod", err) | ||
| } | ||
|
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| podCluster, err := metaServerClient.InstanceAttributeValue("cluster-name") | ||
| if err != nil { | ||
| log.Error("Failed to fetch the name of the cluster in which the pod is running", err) | ||
| } | ||
|
|
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| podZone, err := metaServerClient.Zone() | ||
| if err != nil { | ||
| log.Error("Failed to fetch the Zone of the node where the pod is scheduled", err) | ||
| } | ||
|
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| deploymentDetailsMap["HOSTNAME"] = podHostname | ||
| deploymentDetailsMap["CLUSTERNAME"] = podCluster | ||
| deploymentDetailsMap["ZONE"] = podZone | ||
|
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| log.WithFields(logrus.Fields{ | ||
| "cluster": podCluster, | ||
| "zone": podZone, | ||
| "hostname": podHostname, | ||
| }).Debug("Loaded deployment details") | ||
| } |
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