Example #1
0
// This method takes a container's absolute path and returns the stats for the
// container.  The container's absolute path refers to its hierarchy in the
// cgroup file system. e.g. The root container, which represents the whole
// machine, has path "/"; all docker containers have path "/docker/<docker id>"
func (kl *Kubelet) statsFromContainerPath(containerPath string) (*api.ContainerStats, error) {
	info, err := kl.CadvisorClient.ContainerInfo(containerPath)

	if err != nil {
		return nil, err
	}
	// When the stats data for the container is not available yet.
	if info.StatsPercentiles == nil {
		return nil, nil
	}

	ret := new(api.ContainerStats)
	ret.MaxMemoryUsage = info.StatsPercentiles.MaxMemoryUsage
	if len(info.StatsPercentiles.CpuUsagePercentiles) > 0 {
		percentiles := make([]api.Percentile, len(info.StatsPercentiles.CpuUsagePercentiles))
		for i, p := range info.StatsPercentiles.CpuUsagePercentiles {
			percentiles[i].Percentage = p.Percentage
			percentiles[i].Value = p.Value
		}
		ret.CpuUsagePercentiles = percentiles
	}
	if len(info.StatsPercentiles.MemoryUsagePercentiles) > 0 {
		percentiles := make([]api.Percentile, len(info.StatsPercentiles.MemoryUsagePercentiles))
		for i, p := range info.StatsPercentiles.MemoryUsagePercentiles {
			percentiles[i].Percentage = p.Percentage
			percentiles[i].Value = p.Value
		}
		ret.MemoryUsagePercentiles = percentiles
	}
	return ret, nil
}
Example #2
0
func (kl *Kubelet) GetContainerStats(name string) (*api.ContainerStats, error) {
	if kl.CadvisorClient == nil {
		return nil, nil
	}
	id, found, err := kl.GetContainerID(name)
	if err != nil || !found {
		return nil, err
	}

	info, err := kl.CadvisorClient.ContainerInfo(fmt.Sprintf("/docker/%v", id))

	if err != nil {
		return nil, err
	}
	// When the stats data for the container is not available yet.
	if info.StatsPercentiles == nil {
		return nil, nil
	}

	ret := new(api.ContainerStats)
	ret.MaxMemoryUsage = info.StatsPercentiles.MaxMemoryUsage
	if len(info.StatsPercentiles.CpuUsagePercentiles) > 0 {
		percentiles := make([]api.Percentile, len(info.StatsPercentiles.CpuUsagePercentiles))
		for i, p := range info.StatsPercentiles.CpuUsagePercentiles {
			percentiles[i].Percentage = p.Percentage
			percentiles[i].Value = p.Value
		}
		ret.CpuUsagePercentiles = percentiles
	}
	if len(info.StatsPercentiles.MemoryUsagePercentiles) > 0 {
		percentiles := make([]api.Percentile, len(info.StatsPercentiles.MemoryUsagePercentiles))
		for i, p := range info.StatsPercentiles.MemoryUsagePercentiles {
			percentiles[i].Percentage = p.Percentage
			percentiles[i].Value = p.Value
		}
		ret.MemoryUsagePercentiles = percentiles
	}
	return ret, nil
}