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telegraf/plugins/inputs/docker/docker_test.go

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package docker
import (
"testing"
"time"
"github.com/influxdata/telegraf/testutil"
"github.com/docker/docker/api/types"
"github.com/stretchr/testify/require"
)
func TestDockerGatherContainerStats(t *testing.T) {
var acc testutil.Accumulator
stats := testStats()
tags := map[string]string{
"container_name": "redis",
"container_image": "redis/image",
}
gatherContainerStats(stats, &acc, tags, "123456789", true, true)
// test docker_container_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),
"container_id": "123456789",
}
nettags := copyTags(tags)
nettags["network"] = "eth0"
acc.AssertContainsTaggedFields(t, "docker_container_net", netfields, nettags)
netfields = map[string]interface{}{
"rx_dropped": uint64(6),
"rx_bytes": uint64(8),
"rx_errors": uint64(10),
"tx_packets": uint64(12),
"tx_dropped": uint64(6),
"rx_packets": uint64(8),
"tx_errors": uint64(10),
"tx_bytes": uint64(12),
"container_id": "123456789",
}
nettags = copyTags(tags)
nettags["network"] = "total"
acc.AssertContainsTaggedFields(t, "docker_container_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),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_blkio", blkiofields, blkiotags)
blkiotags = copyTags(tags)
blkiotags["device"] = "total"
blkiofields = map[string]interface{}{
"io_service_bytes_recursive_read": uint64(100),
"io_serviced_recursive_write": uint64(302),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_blkio", blkiofields, blkiotags)
// test docker_container_mem measurement
memfields := map[string]interface{}{
"max_usage": uint64(1001),
"usage": uint64(1111),
"fail_count": uint64(1),
"limit": uint64(2000),
"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),
"usage_percent": float64(55.55),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_mem", memfields, tags)
// test docker_container_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),
"usage_percent": float64(400.0),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_cpu", cpufields, cputags)
cputags["cpu"] = "cpu0"
cpu0fields := map[string]interface{}{
"usage_total": uint64(1),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_cpu", cpu0fields, cputags)
cputags["cpu"] = "cpu1"
cpu1fields := map[string]interface{}{
"usage_total": uint64(1002),
"container_id": "123456789",
}
acc.AssertContainsTaggedFields(t, "docker_container_cpu", cpu1fields, cputags)
}
func testStats() *types.StatsJSON {
stats := &types.StatsJSON{}
stats.Read = time.Now()
stats.Networks = make(map[string]types.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.SystemUsage = 100
stats.CPUStats.ThrottlingData.Periods = 1
stats.PreCPUStats.CPUUsage.TotalUsage = 400
stats.PreCPUStats.SystemUsage = 50
stats.MemoryStats.Stats = make(map[string]uint64)
stats.MemoryStats.Stats["total_pgmajfault"] = 0
stats.MemoryStats.Stats["cache"] = 0
stats.MemoryStats.Stats["mapped_file"] = 0
stats.MemoryStats.Stats["total_inactive_file"] = 0
stats.MemoryStats.Stats["pagpgout"] = 0
stats.MemoryStats.Stats["rss"] = 0
stats.MemoryStats.Stats["total_mapped_file"] = 0
stats.MemoryStats.Stats["writeback"] = 0
stats.MemoryStats.Stats["unevictable"] = 0
stats.MemoryStats.Stats["pgpgin"] = 0
stats.MemoryStats.Stats["total_unevictable"] = 0
stats.MemoryStats.Stats["pgmajfault"] = 0
stats.MemoryStats.Stats["total_rss"] = 44
stats.MemoryStats.Stats["total_rss_huge"] = 444
stats.MemoryStats.Stats["total_write_back"] = 55
stats.MemoryStats.Stats["total_inactive_anon"] = 0
stats.MemoryStats.Stats["rss_huge"] = 0
stats.MemoryStats.Stats["hierarchical_memory_limit"] = 0
stats.MemoryStats.Stats["total_pgfault"] = 0
stats.MemoryStats.Stats["total_active_file"] = 0
stats.MemoryStats.Stats["active_anon"] = 0
stats.MemoryStats.Stats["total_active_anon"] = 0
stats.MemoryStats.Stats["total_pgpgout"] = 0
stats.MemoryStats.Stats["total_cache"] = 0
stats.MemoryStats.Stats["inactive_anon"] = 0
stats.MemoryStats.Stats["active_file"] = 1
stats.MemoryStats.Stats["pgfault"] = 2
stats.MemoryStats.Stats["inactive_file"] = 3
stats.MemoryStats.Stats["total_pgpgin"] = 4
stats.MemoryStats.MaxUsage = 1001
stats.MemoryStats.Usage = 1111
stats.MemoryStats.Failcnt = 1
stats.MemoryStats.Limit = 2000
stats.Networks["eth0"] = types.NetworkStats{
RxDropped: 1,
RxBytes: 2,
RxErrors: 3,
TxPackets: 4,
TxDropped: 1,
RxPackets: 2,
TxErrors: 3,
TxBytes: 4,
}
stats.Networks["eth1"] = types.NetworkStats{
RxDropped: 5,
RxBytes: 6,
RxErrors: 7,
TxPackets: 8,
TxDropped: 5,
RxPackets: 6,
TxErrors: 7,
TxBytes: 8,
}
sbr := types.BlkioStatEntry{
Major: 6,
Minor: 0,
Op: "read",
Value: 100,
}
sr := types.BlkioStatEntry{
Major: 6,
Minor: 0,
Op: "write",
Value: 101,
}
sr2 := types.BlkioStatEntry{
Major: 6,
Minor: 1,
Op: "write",
Value: 201,
}
stats.BlkioStats.IoServiceBytesRecursive = append(
stats.BlkioStats.IoServiceBytesRecursive, sbr)
stats.BlkioStats.IoServicedRecursive = append(
stats.BlkioStats.IoServicedRecursive, sr)
stats.BlkioStats.IoServicedRecursive = append(
stats.BlkioStats.IoServicedRecursive, sr2)
return stats
}
var gatherLabelsTests = []struct {
include []string
exclude []string
expected []string
notexpected []string
}{
{[]string{}, []string{}, []string{"label1", "label2"}, []string{}},
{[]string{"*"}, []string{}, []string{"label1", "label2"}, []string{}},
{[]string{"lab*"}, []string{}, []string{"label1", "label2"}, []string{}},
{[]string{"label1"}, []string{}, []string{"label1"}, []string{"label2"}},
{[]string{"label1*"}, []string{}, []string{"label1"}, []string{"label2"}},
{[]string{}, []string{"*"}, []string{}, []string{"label1", "label2"}},
{[]string{}, []string{"lab*"}, []string{}, []string{"label1", "label2"}},
{[]string{}, []string{"label1"}, []string{"label2"}, []string{"label1"}},
{[]string{"*"}, []string{"*"}, []string{}, []string{"label1", "label2"}},
}
func TestDockerGatherLabels(t *testing.T) {
for _, tt := range gatherLabelsTests {
var acc testutil.Accumulator
d := Docker{
client: nil,
testing: true,
}
for _, label := range tt.include {
d.LabelInclude = append(d.LabelInclude, label)
}
for _, label := range tt.exclude {
d.LabelExclude = append(d.LabelExclude, label)
}
err := d.Gather(&acc)
require.NoError(t, err)
for _, label := range tt.expected {
if !acc.HasTag("docker_container_cpu", label) {
t.Errorf("Didn't get expected label of %s. Test was: Include: %s Exclude %s",
label, tt.include, tt.exclude)
}
}
for _, label := range tt.notexpected {
if acc.HasTag("docker_container_cpu", label) {
t.Errorf("Got unexpected label of %s. Test was: Include: %s Exclude %s",
label, tt.include, tt.exclude)
}
}
}
}
var gatherContainerNames = []struct {
include []string
exclude []string
expected []string
notexpected []string
}{
{[]string{}, []string{}, []string{"etcd", "etcd2"}, []string{}},
{[]string{"*"}, []string{}, []string{"etcd", "etcd2"}, []string{}},
{[]string{"etc*"}, []string{}, []string{"etcd", "etcd2"}, []string{}},
{[]string{"etcd"}, []string{}, []string{"etcd"}, []string{"etcd2"}},
{[]string{"etcd2*"}, []string{}, []string{"etcd2"}, []string{"etcd"}},
{[]string{}, []string{"etc*"}, []string{}, []string{"etcd", "etcd2"}},
{[]string{}, []string{"etcd"}, []string{"etcd2"}, []string{"etcd"}},
{[]string{"*"}, []string{"*"}, []string{"etcd", "etcd2"}, []string{}},
{[]string{}, []string{"*"}, []string{""}, []string{"etcd", "etcd2"}},
}
func TestContainerNames(t *testing.T) {
for _, tt := range gatherContainerNames {
var acc testutil.Accumulator
d := Docker{
client: nil,
testing: true,
ContainerInclude: tt.include,
ContainerExclude: tt.exclude,
}
err := d.Gather(&acc)
require.NoError(t, err)
for _, metric := range acc.Metrics {
if metric.Measurement == "docker_container_cpu" {
if val, ok := metric.Tags["container_name"]; ok {
var found bool = false
for _, cname := range tt.expected {
if val == cname {
found = true
break
}
}
if !found {
t.Errorf("Got unexpected container of %s. Test was -> Include: %s, Exclude: %s", val, tt.include, tt.exclude)
}
}
}
}
for _, metric := range acc.Metrics {
if metric.Measurement == "docker_container_cpu" {
if val, ok := metric.Tags["container_name"]; ok {
var found bool = false
for _, cname := range tt.notexpected {
if val == cname {
found = true
break
}
}
if found {
t.Errorf("Got unexpected container of %s. Test was -> Include: %s, Exclude: %s", val, tt.include, tt.exclude)
}
}
}
}
}
}
func TestDockerGatherInfo(t *testing.T) {
var acc testutil.Accumulator
d := Docker{
client: nil,
testing: true,
TagEnvironment: []string{"ENVVAR1", "ENVVAR2", "ENVVAR3", "ENVVAR5",
"ENVVAR6", "ENVVAR7", "ENVVAR8", "ENVVAR9"},
}
err := acc.GatherError(d.Gather)
require.NoError(t, err)
acc.AssertContainsTaggedFields(t,
"docker",
map[string]interface{}{
"n_listener_events": int(0),
"n_cpus": int(4),
"n_used_file_descriptors": int(19),
"n_containers": int(108),
"n_containers_running": int(98),
"n_containers_stopped": int(6),
"n_containers_paused": int(3),
"n_images": int(199),
"n_goroutines": int(39),
},
map[string]string{"engine_host": "absol"},
)
acc.AssertContainsTaggedFields(t,
"docker_data",
map[string]interface{}{
"used": int64(17300000000),
"total": int64(107400000000),
"available": int64(36530000000),
},
map[string]string{
"unit": "bytes",
"engine_host": "absol",
},
)
acc.AssertContainsTaggedFields(t,
"docker_container_cpu",
map[string]interface{}{
"usage_total": uint64(1231652),
"container_id": "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
},
map[string]string{
"container_name": "etcd2",
"container_image": "quay.io:4443/coreos/etcd",
"cpu": "cpu3",
"container_version": "v2.2.2",
"engine_host": "absol",
"ENVVAR1": "loremipsum",
"ENVVAR2": "dolorsitamet",
"ENVVAR3": "=ubuntu:10.04",
"ENVVAR7": "ENVVAR8=ENVVAR9",
"label1": "test_value_1",
"label2": "test_value_2",
},
)
acc.AssertContainsTaggedFields(t,
"docker_container_mem",
map[string]interface{}{
"total_pgpgout": uint64(0),
"usage_percent": float64(0),
"rss": uint64(0),
"total_writeback": uint64(0),
"active_anon": uint64(0),
"total_pgmafault": uint64(0),
"total_rss": uint64(0),
"total_unevictable": uint64(0),
"active_file": uint64(0),
"total_mapped_file": uint64(0),
"pgpgin": uint64(0),
"total_active_file": uint64(0),
"total_active_anon": uint64(0),
"total_cache": uint64(0),
"inactive_anon": uint64(0),
"pgmajfault": uint64(0),
"total_inactive_anon": uint64(0),
"total_rss_huge": uint64(0),
"rss_huge": uint64(0),
"hierarchical_memory_limit": uint64(0),
"pgpgout": uint64(0),
"unevictable": uint64(0),
"total_inactive_file": uint64(0),
"writeback": uint64(0),
"total_pgfault": uint64(0),
"total_pgpgin": uint64(0),
"cache": uint64(0),
"mapped_file": uint64(0),
"inactive_file": uint64(0),
"max_usage": uint64(0),
"fail_count": uint64(0),
"pgfault": uint64(0),
"usage": uint64(0),
"limit": uint64(18935443456),
"container_id": "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
},
map[string]string{
"engine_host": "absol",
"container_name": "etcd2",
"container_image": "quay.io:4443/coreos/etcd",
"container_version": "v2.2.2",
"ENVVAR1": "loremipsum",
"ENVVAR2": "dolorsitamet",
"ENVVAR3": "=ubuntu:10.04",
"ENVVAR7": "ENVVAR8=ENVVAR9",
"label1": "test_value_1",
"label2": "test_value_2",
},
)
//fmt.Print(info)
}
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