func (self *dockerContainerHandler) getFsStats(stats *info.ContainerStats) error {
switch self.storageDriver {
case aufsStorageDriver, overlayStorageDriver, zfsStorageDriver:
default:
return nil
}
// As of now we assume that all the storage dirs are on the same device.
// The first storage dir will be that of the image layers.
deviceInfo, err := self.fsInfo.GetDirFsDevice(self.storageDirs[0])
if err != nil {
return err
}
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return err
}
var limit uint64 = 0
// Docker does not impose any filesystem limits for containers. So use capacity as limit.
for _, fs := range mi.Filesystems {
if fs.Device == deviceInfo.Device {
limit = fs.Capacity
break
}
}
fsStat := info.FsStats{Device: deviceInfo.Device, Limit: limit}
fsStat.Usage = self.fsHandler.usage()
stats.Filesystem = append(stats.Filesystem, fsStat)
return nil
}
func (handler *rktContainerHandler) getFsStats(stats *info.ContainerStats) error {
if handler.ignoreMetrics.Has(container.DiskUsageMetrics) {
return nil
}
deviceInfo, err := handler.fsInfo.GetDirFsDevice(handler.rootfsStorageDir)
if err != nil {
return err
}
mi, err := handler.machineInfoFactory.GetMachineInfo()
if err != nil {
return err
}
var limit uint64 = 0
// Use capacity as limit.
for _, fs := range mi.Filesystems {
if fs.Device == deviceInfo.Device {
limit = fs.Capacity
break
}
}
fsStat := info.FsStats{Device: deviceInfo.Device, Limit: limit}
usage := handler.fsHandler.Usage()
fsStat.BaseUsage = usage.BaseUsageBytes
fsStat.Usage = usage.TotalUsageBytes
fsStat.Inodes = usage.InodeUsage
stats.Filesystem = append(stats.Filesystem, fsStat)
return nil
}
func (self *dockerContainerHandler) getFsStats(stats *info.ContainerStats) error {
if self.ignoreMetrics.Has(container.DiskUsageMetrics) {
return nil
}
var device string
switch self.storageDriver {
case devicemapperStorageDriver:
// Device has to be the pool name to correlate with the device name as
// set in the machine info filesystems.
device = self.poolName
case aufsStorageDriver, overlayStorageDriver, zfsStorageDriver:
deviceInfo, err := self.fsInfo.GetDirFsDevice(self.rootfsStorageDir)
if err != nil {
return fmt.Errorf("unable to determine device info for dir: %v: %v", self.rootfsStorageDir, err)
}
device = deviceInfo.Device
default:
return nil
}
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return err
}
var (
limit uint64
fsType string
)
// Docker does not impose any filesystem limits for containers. So use capacity as limit.
for _, fs := range mi.Filesystems {
if fs.Device == device {
limit = fs.Capacity
fsType = fs.Type
break
}
}
fsStat := info.FsStats{Device: device, Type: fsType, Limit: limit}
usage := self.fsHandler.Usage()
fsStat.BaseUsage = usage.BaseUsageBytes
fsStat.Usage = usage.TotalUsageBytes
fsStat.Inodes = usage.InodeUsage
stats.Filesystem = append(stats.Filesystem, fsStat)
return nil
}
// cmeFactory generates a complete ContainerMetricElement with fuzzed data.
// CMEs created by cmeFactory contain partially fuzzed stats, aside from hardcoded values for Memory usage.
// The timestamp of the CME is rouded to the current minute and offset by a random number of hours.
func cmeFactory() *cache.ContainerMetricElement {
f := fuzz.New().NilChance(0).NumElements(1, 1)
containerSpec := source_api.ContainerSpec{
ContainerSpec: cadvisor.ContainerSpec{
CreationTime: time.Now(),
HasCpu: true,
HasMemory: true,
HasNetwork: true,
HasFilesystem: true,
HasDiskIo: true,
},
}
containerSpec.Cpu.Limit = 1024
containerSpec.Memory.Limit = 10000000
// Create a fuzzed ContainerStats struct
var containerStats source_api.ContainerStats
f.Fuzz(&containerStats)
// Standardize timestamp to the current minute plus a random number of hours ([1, 10])
now_time := time.Now().Round(time.Minute)
new_time := now_time
for new_time == now_time {
new_time = now_time.Add(time.Duration(rand.Intn(10)) * 5 * time.Minute)
}
containerStats.Timestamp = new_time
containerSpec.CreationTime = new_time.Add(-time.Hour)
// Standardize memory usage and limit to test aggregation
containerStats.Memory.Usage = uint64(5000)
containerStats.Memory.WorkingSet = uint64(602)
// Standardize the device name, usage and limit
new_fs := cadvisor.FsStats{}
f.Fuzz(&new_fs)
new_fs.Device = "/dev/device1"
new_fs.Usage = 50000
new_fs.Limit = 100000
containerStats.Filesystem = []cadvisor.FsStats{new_fs}
return &cache.ContainerMetricElement{
Spec: &containerSpec,
Stats: &containerStats,
}
}
func (self *dockerContainerHandler) getFsStats(stats *info.ContainerStats) error {
// No support for non-aufs storage drivers.
if !self.usesAufsDriver {
return nil
}
// As of now we assume that all the storage dirs are on the same device.
// The first storage dir will be that of the image layers.
deviceInfo, err := self.fsInfo.GetDirFsDevice(self.storageDirs[0])
if err != nil {
return err
}
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return err
}
var limit uint64 = 0
// Docker does not impose any filesystem limits for containers. So use capacity as limit.
for _, fs := range mi.Filesystems {
if fs.Device == deviceInfo.Device {
limit = fs.Capacity
break
}
}
fsStat := info.FsStats{Device: deviceInfo.Device, Limit: limit}
var usage uint64 = 0
for _, dir := range self.storageDirs {
// TODO(Vishh): Add support for external mounts.
dirUsage, err := self.fsInfo.GetDirUsage(dir)
if err != nil {
return err
}
usage += dirUsage
}
fsStat.Usage = usage
stats.Filesystem = append(stats.Filesystem, fsStat)
return nil
}