func initGCP() {
initGCPOnce.Do(func() {
onGCE = metadata.OnGCE()
if onGCE {
// These will fail on instances if the metadata service is
// down or the client is compiled with an API version that
// has been removed. Since these are not vital, let's ignore
// them and make their fields in the dockeLogEntry ,omitempty
projectID, _ = metadata.ProjectID()
zone, _ = metadata.Zone()
instanceName, _ = metadata.InstanceName()
instanceID, _ = metadata.InstanceID()
}
})
}
func (c *googleAPIClient) instanceInfo() (project, zone, instance string, err error) {
project, err = metadata.ProjectID()
if err != nil {
return
}
zone, err = metadata.Zone()
if err != nil {
return
}
name, err := metadata.InstanceName()
if err != nil {
return
}
instancePath := path.Join("projects", project, "zones", zone, "instances", name)
instance = strings.TrimRight(c.config.InstanceBase, "/") + "/" + instancePath
return
}
func init() {
if onGCE {
// These will fail on instances if the metadata service is
// down or the client is compiled with an API version that
// has been removed. Since these are not vital, let's ignore
// them and make their fields in the dockeLogEntry ,omitempty
projectID, _ = metadata.ProjectID()
zone, _ = metadata.Zone()
instanceName, _ = metadata.InstanceName()
instanceID, _ = metadata.InstanceID()
}
if err := logger.RegisterLogDriver(name, New); err != nil {
logrus.Fatal(err)
}
if err := logger.RegisterLogOptValidator(name, ValidateLogOpts); err != nil {
logrus.Fatal(err)
}
}