func GetStatsCgroupOnly(cgroup *cgroups.Cgroup) (*info.ContainerStats, error) {
s, err := cgroupfs.GetStats(cgroup)
if err != nil {
return nil, err
}
return toContainerStats(&libcontainer.ContainerStats{CgroupStats: s}), nil
}
func (self *dockerContainerHandler) GetStats() (stats *info.ContainerStats, err error) {
if !self.isDockerContainer() {
// Return empty stats for root containers.
stats = new(info.ContainerStats)
stats.Timestamp = time.Now()
return
}
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return
}
parent, id, err := self.splitName()
if err != nil {
return
}
cg := &cgroups.Cgroup{
Parent: parent,
Name: id,
}
s, err := fs.GetStats(cg)
if err != nil {
return
}
stats = libcontainerToContainerStats(s, mi)
return
}
func (self *dockerContainerHandler) GetStats() (stats *info.ContainerStats, err error) {
if !self.isDockerContainer() {
// Return empty stats for root containers.
stats = new(info.ContainerStats)
stats.Timestamp = time.Now()
return
}
mi, err := self.machineInfoFactory.GetMachineInfo()
if err != nil {
return
}
parent, id, err := self.splitName()
if err != nil {
return
}
cg := &cgroups.Cgroup{
Parent: parent,
Name: id,
}
// TODO(vmarmol): Use libcontainer's Stats() in the new API when that is ready.
// Use systemd paths if systemd is being used.
var s *cgroups.Stats
if systemd.UseSystemd() {
s, err = systemd.GetStats(cg)
} else {
s, err = fs.GetStats(cg)
}
if err != nil {
return
}
stats = libcontainerToContainerStats(s, mi)
return
}
// TODO(vmarmol): Complete Stats() in final libcontainer API and move users to that.
// DEPRECATED: The below portions are only to be used during the transition to the official API.
// Returns all available stats for the given container.
func GetStats(container *Config, state *State) (stats *ContainerStats, err error) {
stats = &ContainerStats{}
if stats.CgroupStats, err = fs.GetStats(state.CgroupPaths); err != nil {
return stats, err
}
stats.NetworkStats, err = network.GetStats(&state.NetworkState)
return stats, err
}
// returns the container stats in json format.
func getContainerStats(container *libcontainer.Container) (string, error) {
stats, err := fs.GetStats(container.Cgroups)
if err != nil {
return "", err
}
out, err := json.MarshalIndent(stats, "", "\t")
if err != nil {
return "", err
}
return string(out), nil
}
// Get stats of the specified container
func GetStats(cgroup *cgroups.Cgroup, state *libcontainer.State) (*info.ContainerStats, error) {
// TODO(vmarmol): Use libcontainer's Stats() in the new API when that is ready.
stats := &libcontainer.ContainerStats{}
var err error
stats.CgroupStats, err = cgroupfs.GetStats(cgroup)
if err != nil {
return &info.ContainerStats{}, err
}
stats.NetworkStats, err = network.GetStats(&state.NetworkState)
return toContainerStats(stats), nil
}
// Returns all available stats for the given container.
func GetStats(container *Config, state *State) (*ContainerStats, error) {
var containerStats ContainerStats
stats, err := fs.GetStats(container.Cgroups)
if err != nil {
return &containerStats, err
}
containerStats.CgroupStats = stats
networkStats, err := network.GetStats(&state.NetworkState)
if err != nil {
return &containerStats, err
}
containerStats.NetworkStats = networkStats
return &containerStats, nil
}
func statsAction(context *cli.Context) {
config, err := getConfig(context)
if err != nil {
log.Fatal(err)
}
stats, err := fs.GetStats(config)
if err != nil {
log.Fatal(err)
}
out, err := json.MarshalIndent(stats, "", "\t")
if err != nil {
log.Fatal(err)
}
fmt.Printf("Usage stats for '%s':\n %v\n", config.Name, string(out))
}
// TODO(vmarmol): Complete Stats() in final libcontainer API and move users to that.
// DEPRECATED: The below portions are only to be used during the transition to the official API.
// Returns all available stats for the given container.
func GetStats(container *Config, state *State) (*ContainerStats, error) {
var (
err error
stats = &ContainerStats{}
)
if systemd.UseSystemd() {
stats.CgroupStats, err = systemd.GetStats(container.Cgroups)
} else {
stats.CgroupStats, err = fs.GetStats(container.Cgroups)
}
if err != nil {
return stats, err
}
stats.NetworkStats, err = network.GetStats(&state.NetworkState)
return stats, err
}