Refactor the docker plugin, use go-dockerclient throughout

fixes #503 fixes #463
2016-01-20 16:21:19 -07:00
parent e0dc1ef5bd
commit 4d0dc8b7c8
10 changed files with 662 additions and 283 deletions
--- a/plugins/inputs/docker/README.md
+++ b/plugins/inputs/docker/README.md
@@ -0,0 +1,148 @@
+# Docker Input Plugin
+
+The docker plugin uses the docker remote API to gather metrics on running
+docker containers. You can read Docker's documentation for their remote API
+[here](https://docs.docker.com/engine/reference/api/docker_remote_api_v1.20/#get-container-stats-based-on-resource-usage)
+
+The docker plugin uses the excellent
+[fsouza go-dockerclient](https://github.com/fsouza/go-dockerclient) library to
+gather stats. Documentation for the library can be found
+[here](https://godoc.org/github.com/fsouza/go-dockerclient) and documentation
+for the stat structure can be found
+[here](https://godoc.org/github.com/fsouza/go-dockerclient#Stats)
+
+### Configuration:
+
+```
+# Read metrics about docker containers
+[[inputs.docker]]
+  # Docker Endpoint
+  #   To use TCP, set endpoint = "tcp://[ip]:[port]"
+  #   To use environment variables (ie, docker-machine), set endpoint = "ENV"
+  endpoint = "unix:///var/run/docker.sock"
+  # Only collect metrics for these containers, collect all if empty
+  container_names = []
+```
+
+### Measurements & Fields:
+
+Every effort was made to preserve the names based on the JSON response from the
+docker API.
+
+Note that the docker_cpu metric may appear multiple times per collection, based
+on the availability of per-cpu stats on your system.
+
+- docker_mem
+    - total_pgmafault
+    - cache
+    - mapped_file
+    - total_inactive_file
+    - pgpgout
+    - rss
+    - total_mapped_file
+    - writeback
+    - unevictable
+    - pgpgin
+    - total_unevictable
+    - pgmajfault
+    - total_rss
+    - total_rss_huge
+    - total_writeback
+    - total_inactive_anon
+    - rss_huge
+    - hierarchical_memory_limit
+    - total_pgfault
+    - total_active_file
+    - active_anon
+    - total_active_anon
+    - total_pgpgout
+    - total_cache
+    - inactive_anon
+    - active_file
+    - pgfault
+    - inactive_file
+    - total_pgpgin
+    - max_usage
+    - usage
+    - failcnt
+    - limit
+- docker_cpu
+    - throttling_periods
+    - throttling_throttled_periods
+    - throttling_throttled_time
+    - usage_in_kernelmode
+    - usage_in_usermode
+    - usage_system
+    - usage_total
+- docker_net
+    - rx_dropped
+    - rx_bytes
+    - rx_errors
+    - tx_packets
+    - tx_dropped
+    - rx_packets
+    - tx_errors
+    - tx_bytes
+- docker_blkio
+    - io_service_bytes_recursive_async
+    - io_service_bytes_recursive_read
+    - io_service_bytes_recursive_sync
+    - io_service_bytes_recursive_total
+    - io_service_bytes_recursive_write
+    - io_serviced_recursive_async
+    - io_serviced_recursive_read
+    - io_serviced_recursive_sync
+    - io_serviced_recursive_total
+    - io_serviced_recursive_write
+
+### Tags:
+
+- All stats have the following tags:
+    - cont_id (container ID)
+    - cont_image (container image)
+    - cont_name (container name)
+- docker_cpu specific:
+    - cpu
+- docker_net specific:
+    - network
+- docker_blkio specific:
+    - device
+
+### Example Output:
+
+```
+% ./telegraf -config ~/ws/telegraf.conf -input-filter docker -test
+* Plugin: docker, Collection 1
+> docker_mem,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
+cont_image=spotify/kafka,cont_name=kafka \
+active_anon=52568064i,active_file=6926336i,cache=12038144i,fail_count=0i,\
+hierarchical_memory_limit=9223372036854771712i,inactive_anon=52707328i,\
+inactive_file=5111808i,limit=1044578304i,mapped_file=10301440i,\
+max_usage=140656640i,pgfault=63762i,pgmajfault=2837i,pgpgin=73355i,\
+pgpgout=45736i,rss=105275392i,rss_huge=4194304i,total_active_anon=52568064i,\
+total_active_file=6926336i,total_cache=12038144i,total_inactive_anon=52707328i,\
+total_inactive_file=5111808i,total_mapped_file=10301440i,total_pgfault=63762i,\
+total_pgmafault=0i,total_pgpgin=73355i,total_pgpgout=45736i,\
+total_rss=105275392i,total_rss_huge=4194304i,total_unevictable=0i,\
+total_writeback=0i,unevictable=0i,usage=117440512i,writeback=0i 1453409536840126713
+> docker_cpu,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
+cont_image=spotify/kafka,cont_name=kafka,cpu=cpu-total \
+throttling_periods=0i,throttling_throttled_periods=0i,\
+throttling_throttled_time=0i,usage_in_kernelmode=440000000i,\
+usage_in_usermode=2290000000i,usage_system=84795360000000i,\
+usage_total=6628208865i 1453409536840126713
+> docker_cpu,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
+cont_image=spotify/kafka,cont_name=kafka,cpu=cpu0 \
+usage_total=6628208865i 1453409536840126713
+> docker_net,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
+cont_image=spotify/kafka,cont_name=kafka,network=eth0 \
+rx_bytes=7468i,rx_dropped=0i,rx_errors=0i,rx_packets=94i,tx_bytes=946i,\
+tx_dropped=0i,tx_errors=0i,tx_packets=13i 1453409536840126713
+> docker_blkio,cont_id=5705ba8ed8fb47527410653d60a8bb2f3af5e62372297c419022a3cc6d45d848,\
+cont_image=spotify/kafka,cont_name=kafka,device=8:0 \
+io_service_bytes_recursive_async=80216064i,io_service_bytes_recursive_read=79925248i,\
+io_service_bytes_recursive_sync=77824i,io_service_bytes_recursive_total=80293888i,\
+io_service_bytes_recursive_write=368640i,io_serviced_recursive_async=6562i,\
+io_serviced_recursive_read=6492i,io_serviced_recursive_sync=37i,\
+io_serviced_recursive_total=6599i,io_serviced_recursive_write=107i 1453409536840126713
+```
--- a/plugins/inputs/docker/docker.go
+++ b/plugins/inputs/docker/docker.go
@@ -0,0 +1,312 @@
+package system
+
+import (
+	"fmt"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/influxdata/telegraf/plugins/inputs"
+
+	"github.com/fsouza/go-dockerclient"
+)
+
+type Docker struct {
+	Endpoint       string
+	ContainerNames []string
+
+	client *docker.Client
+}
+
+var sampleConfig = `
+  # Docker Endpoint
+  #   To use TCP, set endpoint = "tcp://[ip]:[port]"
+  #   To use environment variables (ie, docker-machine), set endpoint = "ENV"
+  endpoint = "unix:///var/run/docker.sock"
+  # Only collect metrics for these containers, collect all if empty
+  container_names = []
+`
+
+func (d *Docker) Description() string {
+	return "Read metrics about docker containers"
+}
+
+func (d *Docker) SampleConfig() string { return sampleConfig }
+
+func (d *Docker) Gather(acc inputs.Accumulator) error {
+	if d.client == nil {
+		var c *docker.Client
+		var err error
+		if d.Endpoint == "ENV" {
+			c, err = docker.NewClientFromEnv()
+			if err != nil {
+				return err
+			}
+		} else if d.Endpoint == "" {
+			c, err = docker.NewClient("unix:///var/run/docker.sock")
+			if err != nil {
+				return err
+			}
+		} else {
+			c, err = docker.NewClient(d.Endpoint)
+			if err != nil {
+				return err
+			}
+		}
+		d.client = c
+	}
+
+	opts := docker.ListContainersOptions{}
+	containers, err := d.client.ListContainers(opts)
+	if err != nil {
+		return err
+	}
+
+	var wg sync.WaitGroup
+	wg.Add(len(containers))
+	for _, container := range containers {
+		go func(c docker.APIContainers) {
+			defer wg.Done()
+			err := d.gatherContainer(c, acc)
+			if err != nil {
+				fmt.Println(err.Error())
+			}
+		}(container)
+	}
+	wg.Wait()
+
+	return nil
+}
+
+func (d *Docker) gatherContainer(
+	container docker.APIContainers,
+	acc inputs.Accumulator,
+) error {
+	// Parse container name
+	cname := "unknown"
+	if len(container.Names) > 0 {
+		// Not sure what to do with other names, just take the first.
+		cname = strings.TrimPrefix(container.Names[0], "/")
+	}
+
+	tags := map[string]string{
+		"cont_id":    container.ID,
+		"cont_name":  cname,
+		"cont_image": container.Image,
+	}
+	if len(d.ContainerNames) > 0 {
+		if !sliceContains(cname, d.ContainerNames) {
+			return nil
+		}
+	}
+
+	statChan := make(chan *docker.Stats)
+	done := make(chan bool)
+	statOpts := docker.StatsOptions{
+		Stream:  false,
+		ID:      container.ID,
+		Stats:   statChan,
+		Done:    done,
+		Timeout: time.Duration(time.Second * 5),
+	}
+
+	var err error
+	go func() {
+		err = d.client.Stats(statOpts)
+	}()
+
+	stat := <-statChan
+	if err != nil {
+		return err
+	}
+
+	// Add labels to tags
+	for k, v := range container.Labels {
+		tags[k] = v
+	}
+
+	gatherContainerStats(stat, acc, tags)
+
+	return nil
+}
+
+func gatherContainerStats(
+	stat *docker.Stats,
+	acc inputs.Accumulator,
+	tags map[string]string,
+) {
+	now := stat.Read
+
+	memfields := map[string]interface{}{
+		"max_usage":                 stat.MemoryStats.MaxUsage,
+		"usage":                     stat.MemoryStats.Usage,
+		"fail_count":                stat.MemoryStats.Failcnt,
+		"limit":                     stat.MemoryStats.Limit,
+		"total_pgmafault":           stat.MemoryStats.Stats.TotalPgmafault,
+		"cache":                     stat.MemoryStats.Stats.Cache,
+		"mapped_file":               stat.MemoryStats.Stats.MappedFile,
+		"total_inactive_file":       stat.MemoryStats.Stats.TotalInactiveFile,
+		"pgpgout":                   stat.MemoryStats.Stats.Pgpgout,
+		"rss":                       stat.MemoryStats.Stats.Rss,
+		"total_mapped_file":         stat.MemoryStats.Stats.TotalMappedFile,
+		"writeback":                 stat.MemoryStats.Stats.Writeback,
+		"unevictable":               stat.MemoryStats.Stats.Unevictable,
+		"pgpgin":                    stat.MemoryStats.Stats.Pgpgin,
+		"total_unevictable":         stat.MemoryStats.Stats.TotalUnevictable,
+		"pgmajfault":                stat.MemoryStats.Stats.Pgmajfault,
+		"total_rss":                 stat.MemoryStats.Stats.TotalRss,
+		"total_rss_huge":            stat.MemoryStats.Stats.TotalRssHuge,
+		"total_writeback":           stat.MemoryStats.Stats.TotalWriteback,
+		"total_inactive_anon":       stat.MemoryStats.Stats.TotalInactiveAnon,
+		"rss_huge":                  stat.MemoryStats.Stats.RssHuge,
+		"hierarchical_memory_limit": stat.MemoryStats.Stats.HierarchicalMemoryLimit,
+		"total_pgfault":             stat.MemoryStats.Stats.TotalPgfault,
+		"total_active_file":         stat.MemoryStats.Stats.TotalActiveFile,
+		"active_anon":               stat.MemoryStats.Stats.ActiveAnon,
+		"total_active_anon":         stat.MemoryStats.Stats.TotalActiveAnon,
+		"total_pgpgout":             stat.MemoryStats.Stats.TotalPgpgout,
+		"total_cache":               stat.MemoryStats.Stats.TotalCache,
+		"inactive_anon":             stat.MemoryStats.Stats.InactiveAnon,
+		"active_file":               stat.MemoryStats.Stats.ActiveFile,
+		"pgfault":                   stat.MemoryStats.Stats.Pgfault,
+		"inactive_file":             stat.MemoryStats.Stats.InactiveFile,
+		"total_pgpgin":              stat.MemoryStats.Stats.TotalPgpgin,
+	}
+	acc.AddFields("docker_mem", memfields, tags, now)
+
+	cpufields := map[string]interface{}{
+		"usage_total":                  stat.CPUStats.CPUUsage.TotalUsage,
+		"usage_in_usermode":            stat.CPUStats.CPUUsage.UsageInUsermode,
+		"usage_in_kernelmode":          stat.CPUStats.CPUUsage.UsageInKernelmode,
+		"usage_system":                 stat.CPUStats.SystemCPUUsage,
+		"throttling_periods":           stat.CPUStats.ThrottlingData.Periods,
+		"throttling_throttled_periods": stat.CPUStats.ThrottlingData.ThrottledPeriods,
+		"throttling_throttled_time":    stat.CPUStats.ThrottlingData.ThrottledTime,
+	}
+	cputags := copyTags(tags)
+	cputags["cpu"] = "cpu-total"
+	acc.AddFields("docker_cpu", cpufields, cputags, now)
+
+	for i, percpu := range stat.CPUStats.CPUUsage.PercpuUsage {
+		percputags := copyTags(tags)
+		percputags["cpu"] = fmt.Sprintf("cpu%d", i)
+		acc.AddFields("docker_cpu", map[string]interface{}{"usage_total": percpu}, percputags, now)
+	}
+
+	for network, netstats := range stat.Networks {
+		netfields := map[string]interface{}{
+			"rx_dropped": netstats.RxDropped,
+			"rx_bytes":   netstats.RxBytes,
+			"rx_errors":  netstats.RxErrors,
+			"tx_packets": netstats.TxPackets,
+			"tx_dropped": netstats.TxDropped,
+			"rx_packets": netstats.RxPackets,
+			"tx_errors":  netstats.TxErrors,
+			"tx_bytes":   netstats.TxBytes,
+		}
+		// Create a new network tag dictionary for the "network" tag
+		nettags := copyTags(tags)
+		nettags["network"] = network
+		acc.AddFields("docker_net", netfields, nettags, now)
+	}
+
+	gatherBlockIOMetrics(stat, acc, tags, now)
+}
+
+func gatherBlockIOMetrics(
+	stat *docker.Stats,
+	acc inputs.Accumulator,
+	tags map[string]string,
+	now time.Time,
+) {
+	blkioStats := stat.BlkioStats
+	// Make a map of devices to their block io stats
+	deviceStatMap := make(map[string]map[string]interface{})
+
+	for _, metric := range blkioStats.IOServiceBytesRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		_, ok := deviceStatMap[device]
+		if !ok {
+			deviceStatMap[device] = make(map[string]interface{})
+		}
+
+		field := fmt.Sprintf("io_service_bytes_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOServicedRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		_, ok := deviceStatMap[device]
+		if !ok {
+			deviceStatMap[device] = make(map[string]interface{})
+		}
+
+		field := fmt.Sprintf("io_serviced_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOQueueRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("io_queue_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOServiceTimeRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("io_service_time_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOWaitTimeRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("io_wait_time_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOMergedRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("io_merged_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.IOTimeRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("io_time_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for _, metric := range blkioStats.SectorsRecursive {
+		device := fmt.Sprintf("%d:%d", metric.Major, metric.Minor)
+		field := fmt.Sprintf("sectors_recursive_%s", strings.ToLower(metric.Op))
+		deviceStatMap[device][field] = metric.Value
+	}
+
+	for device, fields := range deviceStatMap {
+		iotags := copyTags(tags)
+		iotags["device"] = device
+		acc.AddFields("docker_blkio", fields, iotags, now)
+	}
+}
+
+func copyTags(in map[string]string) map[string]string {
+	out := make(map[string]string)
+	for k, v := range in {
+		out[k] = v
+	}
+	return out
+}
+
+func sliceContains(in string, sl []string) bool {
+	for _, str := range sl {
+		if str == in {
+			return true
+		}
+	}
+	return false
+}
+
+func init() {
+	inputs.Add("docker", func() inputs.Input {
+		return &Docker{}
+	})
+}
--- a/plugins/inputs/docker/docker_test.go
+++ b/plugins/inputs/docker/docker_test.go
@@ -0,0 +1,190 @@
+package system
+
+import (
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/fsouza/go-dockerclient"
+)
+
+func TestDockerGatherContainerStats(t *testing.T) {
+	var acc testutil.Accumulator
+	stats := testStats()
+
+	tags := map[string]string{
+		"cont_id":    "foobarbaz",
+		"cont_name":  "redis",
+		"cont_image": "redis/image",
+	}
+	gatherContainerStats(stats, &acc, tags)
+
+	// test docker_net measurement
+	netfields := map[string]interface{}{
+		"rx_dropped": uint64(1),
+		"rx_bytes":   uint64(2),
+		"rx_errors":  uint64(3),
+		"tx_packets": uint64(4),
+		"tx_dropped": uint64(1),
+		"rx_packets": uint64(2),
+		"tx_errors":  uint64(3),
+		"tx_bytes":   uint64(4),
+	}
+	nettags := copyTags(tags)
+	nettags["network"] = "eth0"
+	acc.AssertContainsTaggedFields(t, "docker_net", netfields, nettags)
+
+	// test docker_blkio measurement
+	blkiotags := copyTags(tags)
+	blkiotags["device"] = "6:0"
+	blkiofields := map[string]interface{}{
+		"io_service_bytes_recursive_read": uint64(100),
+		"io_serviced_recursive_write":     uint64(101),
+	}
+	acc.AssertContainsTaggedFields(t, "docker_blkio", blkiofields, blkiotags)
+
+	// test docker_mem measurement
+	memfields := map[string]interface{}{
+		"max_usage":                 uint64(1001),
+		"usage":                     uint64(1111),
+		"fail_count":                uint64(1),
+		"limit":                     uint64(20),
+		"total_pgmafault":           uint64(0),
+		"cache":                     uint64(0),
+		"mapped_file":               uint64(0),
+		"total_inactive_file":       uint64(0),
+		"pgpgout":                   uint64(0),
+		"rss":                       uint64(0),
+		"total_mapped_file":         uint64(0),
+		"writeback":                 uint64(0),
+		"unevictable":               uint64(0),
+		"pgpgin":                    uint64(0),
+		"total_unevictable":         uint64(0),
+		"pgmajfault":                uint64(0),
+		"total_rss":                 uint64(44),
+		"total_rss_huge":            uint64(444),
+		"total_writeback":           uint64(55),
+		"total_inactive_anon":       uint64(0),
+		"rss_huge":                  uint64(0),
+		"hierarchical_memory_limit": uint64(0),
+		"total_pgfault":             uint64(0),
+		"total_active_file":         uint64(0),
+		"active_anon":               uint64(0),
+		"total_active_anon":         uint64(0),
+		"total_pgpgout":             uint64(0),
+		"total_cache":               uint64(0),
+		"inactive_anon":             uint64(0),
+		"active_file":               uint64(1),
+		"pgfault":                   uint64(2),
+		"inactive_file":             uint64(3),
+		"total_pgpgin":              uint64(4),
+	}
+	acc.AssertContainsTaggedFields(t, "docker_mem", memfields, tags)
+
+	// test docker_cpu measurement
+	cputags := copyTags(tags)
+	cputags["cpu"] = "cpu-total"
+	cpufields := map[string]interface{}{
+		"usage_total":                  uint64(500),
+		"usage_in_usermode":            uint64(100),
+		"usage_in_kernelmode":          uint64(200),
+		"usage_system":                 uint64(100),
+		"throttling_periods":           uint64(1),
+		"throttling_throttled_periods": uint64(0),
+		"throttling_throttled_time":    uint64(0),
+	}
+	acc.AssertContainsTaggedFields(t, "docker_cpu", cpufields, cputags)
+
+	cputags["cpu"] = "cpu0"
+	cpu0fields := map[string]interface{}{
+		"usage_total": uint64(1),
+	}
+	acc.AssertContainsTaggedFields(t, "docker_cpu", cpu0fields, cputags)
+
+	cputags["cpu"] = "cpu1"
+	cpu1fields := map[string]interface{}{
+		"usage_total": uint64(1002),
+	}
+	acc.AssertContainsTaggedFields(t, "docker_cpu", cpu1fields, cputags)
+}
+
+func testStats() *docker.Stats {
+	stats := &docker.Stats{
+		Read:     time.Now(),
+		Networks: make(map[string]docker.NetworkStats),
+	}
+
+	stats.CPUStats.CPUUsage.PercpuUsage = []uint64{1, 1002}
+	stats.CPUStats.CPUUsage.UsageInUsermode = 100
+	stats.CPUStats.CPUUsage.TotalUsage = 500
+	stats.CPUStats.CPUUsage.UsageInKernelmode = 200
+	stats.CPUStats.SystemCPUUsage = 100
+	stats.CPUStats.ThrottlingData.Periods = 1
+
+	stats.MemoryStats.Stats.TotalPgmafault = 0
+	stats.MemoryStats.Stats.Cache = 0
+	stats.MemoryStats.Stats.MappedFile = 0
+	stats.MemoryStats.Stats.TotalInactiveFile = 0
+	stats.MemoryStats.Stats.Pgpgout = 0
+	stats.MemoryStats.Stats.Rss = 0
+	stats.MemoryStats.Stats.TotalMappedFile = 0
+	stats.MemoryStats.Stats.Writeback = 0
+	stats.MemoryStats.Stats.Unevictable = 0
+	stats.MemoryStats.Stats.Pgpgin = 0
+	stats.MemoryStats.Stats.TotalUnevictable = 0
+	stats.MemoryStats.Stats.Pgmajfault = 0
+	stats.MemoryStats.Stats.TotalRss = 44
+	stats.MemoryStats.Stats.TotalRssHuge = 444
+	stats.MemoryStats.Stats.TotalWriteback = 55
+	stats.MemoryStats.Stats.TotalInactiveAnon = 0
+	stats.MemoryStats.Stats.RssHuge = 0
+	stats.MemoryStats.Stats.HierarchicalMemoryLimit = 0
+	stats.MemoryStats.Stats.TotalPgfault = 0
+	stats.MemoryStats.Stats.TotalActiveFile = 0
+	stats.MemoryStats.Stats.ActiveAnon = 0
+	stats.MemoryStats.Stats.TotalActiveAnon = 0
+	stats.MemoryStats.Stats.TotalPgpgout = 0
+	stats.MemoryStats.Stats.TotalCache = 0
+	stats.MemoryStats.Stats.InactiveAnon = 0
+	stats.MemoryStats.Stats.ActiveFile = 1
+	stats.MemoryStats.Stats.Pgfault = 2
+	stats.MemoryStats.Stats.InactiveFile = 3
+	stats.MemoryStats.Stats.TotalPgpgin = 4
+
+	stats.MemoryStats.MaxUsage = 1001
+	stats.MemoryStats.Usage = 1111
+	stats.MemoryStats.Failcnt = 1
+	stats.MemoryStats.Limit = 20
+
+	stats.Networks["eth0"] = docker.NetworkStats{
+		RxDropped: 1,
+		RxBytes:   2,
+		RxErrors:  3,
+		TxPackets: 4,
+		TxDropped: 1,
+		RxPackets: 2,
+		TxErrors:  3,
+		TxBytes:   4,
+	}
+
+	sbr := docker.BlkioStatsEntry{
+		Major: 6,
+		Minor: 0,
+		Op:    "read",
+		Value: 100,
+	}
+	sr := docker.BlkioStatsEntry{
+		Major: 6,
+		Minor: 0,
+		Op:    "write",
+		Value: 101,
+	}
+
+	stats.BlkioStats.IOServiceBytesRecursive = append(
+		stats.BlkioStats.IOServiceBytesRecursive, sbr)
+	stats.BlkioStats.IOServicedRecursive = append(
+		stats.BlkioStats.IOServicedRecursive, sr)
+
+	return stats
+}