// Gather gathers system utilization data.
func Gather(config Config, lg logger.Logger) *Data {
uDat := Data{
MetadataVersion: metadataVersion,
Vendors: &vendors{},
LogicalProcessors: runtime.NumCPU(),
}
if config.DetectDocker {
id, err := sysinfo.DockerID()
if err != nil &&
err != sysinfo.ErrDockerUnsupported &&
err != sysinfo.ErrDockerNotFound {
lg.Warn("error gathering Docker information", map[string]interface{}{
"error": err.Error(),
})
} else if id != "" {
uDat.Vendors.Docker = &vendor{ID: id}
}
}
if config.DetectAWS {
aws, err := getAWS()
if nil == err {
uDat.Vendors.AWS = aws
} else if isAWSValidationError(err) {
lg.Warn("AWS validation error", map[string]interface{}{
"error": err.Error(),
})
}
}
if uDat.Vendors.AWS == nil && uDat.Vendors.Docker == nil {
uDat.Vendors = nil
}
host, err := sysinfo.Hostname()
if nil == err {
uDat.Hostname = host
} else {
lg.Warn("error getting hostname", map[string]interface{}{
"error": err.Error(),
})
}
bts, err := sysinfo.PhysicalMemoryBytes()
if nil == err {
mib := sysinfo.BytesToMebibytes(bts)
uDat.RAMMib = &mib
} else {
lg.Warn("error getting memory", map[string]interface{}{
"error": err.Error(),
})
}
uDat.Config = overrideFromConfig(config)
return &uDat
}
// GetSample gathers a new Sample.
func GetSample(now time.Time, lg logger.Logger) *Sample {
s := Sample{
when: now,
numGoroutine: runtime.NumGoroutine(),
numCPU: runtime.NumCPU(),
}
if usage, err := sysinfo.GetUsage(); err == nil {
s.usage = usage
} else {
lg.Warn("unable to usage", map[string]interface{}{
"error": err.Error(),
})
}
runtime.ReadMemStats(&s.memStats)
return &s
}