// Get cgroup and networking stats of the specified container
func GetStats(cgroupManager cgroups.Manager, networkInterfaces []string) (*info.ContainerStats, error) {
cgroupStats, err := cgroupManager.GetStats()
if err != nil {
return nil, err
}
libcontainerStats := &libcontainer.Stats{
CgroupStats: cgroupStats,
}
stats := toContainerStats(libcontainerStats)
// TODO(rjnagal): Use networking stats directly from libcontainer.
stats.Network.Interfaces = make([]info.InterfaceStats, len(networkInterfaces))
for i := range networkInterfaces {
interfaceStats, err := sysinfo.GetNetworkStats(networkInterfaces[i])
if err != nil {
return stats, err
}
stats.Network.Interfaces[i] = interfaceStats
}
// For backwards compatability.
if len(networkInterfaces) > 0 {
stats.Network.InterfaceStats = stats.Network.Interfaces[0]
}
return stats, nil
}
func (self *rawContainerHandler) GetStats() (*info.ContainerStats, error) {
stats, err := libcontainer.GetStats(self.cgroupPaths, &self.libcontainerState)
if err != nil {
return stats, err
}
err = self.getFsStats(stats)
if err != nil {
return stats, err
}
// Fill in network stats for root.
nd, err := self.GetRootNetworkDevices()
if err != nil {
return stats, err
}
if len(nd) != 0 {
// ContainerStats only reports stat for one network device.
// TODO(rjnagal): Handle multiple physical network devices.
stats.Network, err = sysinfo.GetNetworkStats(nd[0].Name)
if err != nil {
return stats, err
}
}
return stats, nil
}
// Get cgroup and networking stats of the specified container
func GetStats(cgroupManager cgroups.Manager, networkInterfaces []string) (*info.ContainerStats, error) {
cgroupStats, err := cgroupManager.GetStats()
if err != nil {
return nil, err
}
libcontainerStats := &libcontainer.Stats{
CgroupStats: cgroupStats,
}
stats := toContainerStats(libcontainerStats)
if len(networkInterfaces) != 0 {
// ContainerStats only reports stat for one network device.
// TODO(rjnagal): Handle multiple physical network devices.
// TODO(rjnagal): Use networking stats directly from libcontainer.
stats.Network, err = sysinfo.GetNetworkStats(networkInterfaces[0])
if err != nil {
return stats, err
}
}
return stats, nil
}
// Get cgroup and networking stats of the specified container
func GetStats(cgroupManager cgroups.Manager, networkInterfaces []string, pid int) (*info.ContainerStats, error) {
cgroupStats, err := cgroupManager.GetStats()
if err != nil {
return nil, err
}
libcontainerStats := &libcontainer.Stats{
CgroupStats: cgroupStats,
}
stats := toContainerStats(libcontainerStats)
// TODO(rjnagal): Use networking stats directly from libcontainer.
stats.Network.Interfaces = make([]info.InterfaceStats, len(networkInterfaces))
for i := range networkInterfaces {
interfaceStats, err := sysinfo.GetNetworkStats(networkInterfaces[i])
if err != nil {
return stats, err
}
stats.Network.Interfaces[i] = interfaceStats
}
// If we know the pid & we haven't discovered any network interfaces yet
// try the network namespace.
if pid > 0 && len(stats.Network.Interfaces) == 0 {
nsStats, err := networkStatsFromNs(pid)
if err != nil {
glog.V(2).Infof("Unable to get network stats from pid %d: %v", pid, err)
} else {
stats.Network.Interfaces = append(stats.Network.Interfaces, nsStats...)
}
}
// For backwards compatibility.
if len(stats.Network.Interfaces) > 0 {
stats.Network.InterfaceStats = stats.Network.Interfaces[0]
}
return stats, nil
}