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docker_test.go
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docker_test.go
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package docker
import (
"context"
"crypto/tls"
"io"
"reflect"
"sort"
"strings"
"testing"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/api/types/system"
"github.com/stretchr/testify/require"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal/choice"
"github.com/influxdata/telegraf/testutil"
)
type mockClient struct {
InfoF func() (system.Info, error)
ContainerListF func(options container.ListOptions) ([]types.Container, error)
ContainerStatsF func(containerID string) (container.StatsResponseReader, error)
ContainerInspectF func() (types.ContainerJSON, error)
ServiceListF func() ([]swarm.Service, error)
TaskListF func() ([]swarm.Task, error)
NodeListF func() ([]swarm.Node, error)
DiskUsageF func() (types.DiskUsage, error)
ClientVersionF func() string
CloseF func() error
}
func (c *mockClient) Info(context.Context) (system.Info, error) {
return c.InfoF()
}
func (c *mockClient) ContainerList(_ context.Context, options container.ListOptions) ([]types.Container, error) {
return c.ContainerListF(options)
}
func (c *mockClient) ContainerStats(_ context.Context, containerID string, _ bool) (container.StatsResponseReader, error) {
return c.ContainerStatsF(containerID)
}
func (c *mockClient) ContainerInspect(context.Context, string) (types.ContainerJSON, error) {
return c.ContainerInspectF()
}
func (c *mockClient) ServiceList(context.Context, types.ServiceListOptions) ([]swarm.Service, error) {
return c.ServiceListF()
}
func (c *mockClient) TaskList(context.Context, types.TaskListOptions) ([]swarm.Task, error) {
return c.TaskListF()
}
func (c *mockClient) NodeList(context.Context, types.NodeListOptions) ([]swarm.Node, error) {
return c.NodeListF()
}
func (c *mockClient) DiskUsage(context.Context, types.DiskUsageOptions) (types.DiskUsage, error) {
return c.DiskUsageF()
}
func (c *mockClient) ClientVersion() string {
return c.ClientVersionF()
}
func (c *mockClient) Close() error {
return c.CloseF()
}
var baseClient = mockClient{
InfoF: func() (system.Info, error) {
return info, nil
},
ContainerListF: func(container.ListOptions) ([]types.Container, error) {
return containerList, nil
},
ContainerStatsF: func(s string) (container.StatsResponseReader, error) {
return containerStats(s), nil
},
ContainerInspectF: func() (types.ContainerJSON, error) {
return containerInspect(), nil
},
ServiceListF: func() ([]swarm.Service, error) {
return serviceList, nil
},
TaskListF: func() ([]swarm.Task, error) {
return taskList, nil
},
NodeListF: func() ([]swarm.Node, error) {
return nodeList, nil
},
DiskUsageF: func() (types.DiskUsage, error) {
return diskUsage, nil
},
ClientVersionF: func() string {
return version
},
CloseF: func() error {
return nil
},
}
func TestDockerGatherContainerStats(t *testing.T) {
var acc testutil.Accumulator
stats := testStats()
tags := map[string]string{
"container_name": "redis",
"container_image": "redis/image",
}
d := &Docker{
Log: testutil.Logger{},
PerDeviceInclude: containerMetricClasses,
TotalInclude: containerMetricClasses,
}
d.parseContainerStats(stats, &acc, tags, "123456789", "linux")
// 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{}{
"active_anon": uint64(0),
"active_file": uint64(1),
"cache": uint64(0),
"container_id": "123456789",
"fail_count": uint64(1),
"hierarchical_memory_limit": uint64(0),
"inactive_anon": uint64(0),
"inactive_file": uint64(3),
"limit": uint64(2000),
"mapped_file": uint64(0),
"max_usage": uint64(1001),
"pgfault": uint64(2),
"pgmajfault": uint64(0),
"pgpgin": uint64(0),
"pgpgout": uint64(0),
"rss_huge": uint64(0),
"rss": uint64(0),
"total_active_anon": uint64(0),
"total_active_file": uint64(0),
"total_cache": uint64(0),
"total_inactive_anon": uint64(0),
"total_inactive_file": uint64(0),
"total_mapped_file": uint64(0),
"total_pgfault": uint64(0),
"total_pgmajfault": uint64(0),
"total_pgpgin": uint64(4),
"total_pgpgout": uint64(0),
"total_rss_huge": uint64(444),
"total_rss": uint64(44),
"total_unevictable": uint64(0),
"total_writeback": uint64(55),
"unevictable": uint64(0),
"usage_percent": float64(55.55),
"usage": uint64(1111),
"writeback": uint64(0),
}
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)
// Those tagged filed should not be present because of offline CPUs
cputags["cpu"] = "cpu2"
cpu2fields := map[string]interface{}{
"usage_total": uint64(0),
"container_id": "123456789",
}
acc.AssertDoesNotContainsTaggedFields(t, "docker_container_cpu", cpu2fields, cputags)
cputags["cpu"] = "cpu3"
cpu3fields := map[string]interface{}{
"usage_total": uint64(0),
"container_id": "123456789",
}
acc.AssertDoesNotContainsTaggedFields(t, "docker_container_cpu", cpu3fields, cputags)
}
func TestDockerMemoryExcludesCache(t *testing.T) {
var acc testutil.Accumulator
stats := testStats()
tags := map[string]string{
"container_name": "redis",
"container_image": "redis/image",
}
d := &Docker{
Log: testutil.Logger{},
}
delete(stats.MemoryStats.Stats, "cache")
delete(stats.MemoryStats.Stats, "inactive_file")
delete(stats.MemoryStats.Stats, "total_inactive_file")
// set cgroup v2 cache value
stats.MemoryStats.Stats["inactive_file"] = 9
d.parseContainerStats(stats, &acc, tags, "123456789", "linux")
// test docker_container_mem measurement
memfields := map[string]interface{}{
"active_anon": uint64(0),
"active_file": uint64(1),
"container_id": "123456789",
"fail_count": uint64(1),
"hierarchical_memory_limit": uint64(0),
"inactive_anon": uint64(0),
"inactive_file": uint64(9),
"limit": uint64(2000),
"mapped_file": uint64(0),
"max_usage": uint64(1001),
"pgfault": uint64(2),
"pgmajfault": uint64(0),
"pgpgin": uint64(0),
"pgpgout": uint64(0),
"rss_huge": uint64(0),
"rss": uint64(0),
"total_active_anon": uint64(0),
"total_active_file": uint64(0),
"total_cache": uint64(0),
"total_inactive_anon": uint64(0),
"total_mapped_file": uint64(0),
"total_pgfault": uint64(0),
"total_pgmajfault": uint64(0),
"total_pgpgin": uint64(4),
"total_pgpgout": uint64(0),
"total_rss_huge": uint64(444),
"total_rss": uint64(44),
"total_unevictable": uint64(0),
"total_writeback": uint64(55),
"unevictable": uint64(0),
"usage_percent": float64(55.1), // 1102 / 2000
"usage": uint64(1102),
"writeback": uint64(0),
}
acc.AssertContainsTaggedFields(t, "docker_container_mem", memfields, tags)
acc.ClearMetrics()
// set cgroup v1 cache value (has priority over cgroups v2)
stats.MemoryStats.Stats["total_inactive_file"] = 7
d.parseContainerStats(stats, &acc, tags, "123456789", "linux")
// test docker_container_mem measurement
memfields = map[string]interface{}{
"active_anon": uint64(0),
"active_file": uint64(1),
// "cache": uint64(0),
"container_id": "123456789",
"fail_count": uint64(1),
"hierarchical_memory_limit": uint64(0),
"inactive_anon": uint64(0),
"inactive_file": uint64(9),
"limit": uint64(2000),
"mapped_file": uint64(0),
"max_usage": uint64(1001),
"pgfault": uint64(2),
"pgmajfault": uint64(0),
"pgpgin": uint64(0),
"pgpgout": uint64(0),
"rss_huge": uint64(0),
"rss": uint64(0),
"total_active_anon": uint64(0),
"total_active_file": uint64(0),
"total_cache": uint64(0),
"total_inactive_anon": uint64(0),
"total_inactive_file": uint64(7),
"total_mapped_file": uint64(0),
"total_pgfault": uint64(0),
"total_pgmajfault": uint64(0),
"total_pgpgin": uint64(4),
"total_pgpgout": uint64(0),
"total_rss_huge": uint64(444),
"total_rss": uint64(44),
"total_unevictable": uint64(0),
"total_writeback": uint64(55),
"unevictable": uint64(0),
"usage_percent": float64(55.2), // 1104 / 2000
"usage": uint64(1104),
"writeback": uint64(0),
}
acc.AssertContainsTaggedFields(t, "docker_container_mem", memfields, tags)
acc.ClearMetrics()
// set Docker 19.03 and older cache value (has priority over cgroups v1 and v2)
stats.MemoryStats.Stats["cache"] = 16
d.parseContainerStats(stats, &acc, tags, "123456789", "linux")
// test docker_container_mem measurement
memfields = map[string]interface{}{
"active_anon": uint64(0),
"active_file": uint64(1),
"cache": uint64(16),
"container_id": "123456789",
"fail_count": uint64(1),
"hierarchical_memory_limit": uint64(0),
"inactive_anon": uint64(0),
"inactive_file": uint64(9),
"limit": uint64(2000),
"mapped_file": uint64(0),
"max_usage": uint64(1001),
"pgfault": uint64(2),
"pgmajfault": uint64(0),
"pgpgin": uint64(0),
"pgpgout": uint64(0),
"rss_huge": uint64(0),
"rss": uint64(0),
"total_active_anon": uint64(0),
"total_active_file": uint64(0),
"total_cache": uint64(0),
"total_inactive_anon": uint64(0),
"total_inactive_file": uint64(7),
"total_mapped_file": uint64(0),
"total_pgfault": uint64(0),
"total_pgmajfault": uint64(0),
"total_pgpgin": uint64(4),
"total_pgpgout": uint64(0),
"total_rss_huge": uint64(444),
"total_rss": uint64(44),
"total_unevictable": uint64(0),
"total_writeback": uint64(55),
"unevictable": uint64(0),
"usage_percent": float64(54.75), // 1095 / 2000
"usage": uint64(1095),
"writeback": uint64(0),
}
acc.AssertContainsTaggedFields(t, "docker_container_mem", memfields, tags)
}
func TestDocker_WindowsMemoryContainerStats(t *testing.T) {
var acc testutil.Accumulator
d := Docker{
Log: testutil.Logger{},
newClient: func(string, *tls.Config) (dockerClient, error) {
return &mockClient{
InfoF: func() (system.Info, error) {
return info, nil
},
ContainerListF: func(container.ListOptions) ([]types.Container, error) {
return containerList, nil
},
ContainerStatsF: func(string) (container.StatsResponseReader, error) {
return containerStatsWindows(), nil
},
ContainerInspectF: func() (types.ContainerJSON, error) {
return containerInspect(), nil
},
ServiceListF: func() ([]swarm.Service, error) {
return serviceList, nil
},
TaskListF: func() ([]swarm.Task, error) {
return taskList, nil
},
NodeListF: func() ([]swarm.Node, error) {
return nodeList, nil
},
DiskUsageF: func() (types.DiskUsage, error) {
return diskUsage, nil
},
ClientVersionF: func() string {
return version
},
CloseF: func() error {
return nil
},
}, nil
},
}
err := d.Gather(&acc)
require.NoError(t, err)
}
func TestContainerLabels(t *testing.T) {
var tests = []struct {
name string
container types.Container
include []string
exclude []string
expected map[string]string
}{
{
name: "Nil filters matches all",
container: genContainerLabeled(map[string]string{
"a": "x",
}),
include: nil,
exclude: nil,
expected: map[string]string{
"a": "x",
},
},
{
name: "Empty filters matches all",
container: genContainerLabeled(map[string]string{
"a": "x",
}),
expected: map[string]string{
"a": "x",
},
},
{
name: "Must match include",
container: genContainerLabeled(map[string]string{
"a": "x",
"b": "y",
}),
include: []string{"a"},
expected: map[string]string{
"a": "x",
},
},
{
name: "Must not match exclude",
container: genContainerLabeled(map[string]string{
"a": "x",
"b": "y",
}),
exclude: []string{"b"},
expected: map[string]string{
"a": "x",
},
},
{
name: "Include Glob",
container: genContainerLabeled(map[string]string{
"aa": "x",
"ab": "y",
"bb": "z",
}),
include: []string{"a*"},
expected: map[string]string{
"aa": "x",
"ab": "y",
},
},
{
name: "Exclude Glob",
container: genContainerLabeled(map[string]string{
"aa": "x",
"ab": "y",
"bb": "z",
}),
exclude: []string{"a*"},
expected: map[string]string{
"bb": "z",
},
},
{
name: "Excluded Includes",
container: genContainerLabeled(map[string]string{
"aa": "x",
"ab": "y",
"bb": "z",
}),
include: []string{"a*"},
exclude: []string{"*b"},
expected: map[string]string{
"aa": "x",
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var acc testutil.Accumulator
newClientFunc := func(string, *tls.Config) (dockerClient, error) {
client := baseClient
client.ContainerListF = func(container.ListOptions) ([]types.Container, error) {
return []types.Container{tt.container}, nil
}
return &client, nil
}
d := Docker{
Log: testutil.Logger{},
newClient: newClientFunc,
LabelInclude: tt.include,
LabelExclude: tt.exclude,
Total: true,
TotalInclude: []string{"cpu"},
}
err := d.Gather(&acc)
require.NoError(t, err)
// Grab tags from a container metric
var actual map[string]string
for _, metric := range acc.Metrics {
if metric.Measurement == "docker_container_cpu" {
actual = metric.Tags
}
}
for k, v := range tt.expected {
require.Equal(t, v, actual[k])
}
})
}
}
func genContainerLabeled(labels map[string]string) types.Container {
c := containerList[0]
c.Labels = labels
return c
}
func TestContainerNames(t *testing.T) {
var tests = []struct {
name string
containers [][]string
include []string
exclude []string
expected []string
}{
{
name: "Nil filters matches all",
include: nil,
exclude: nil,
expected: []string{"etcd", "etcd2", "acme", "acme-test", "foo"},
},
{
name: "Empty filters matches all",
expected: []string{"etcd", "etcd2", "acme", "acme-test", "foo"},
},
{
name: "Match all containers",
include: []string{"*"},
expected: []string{"etcd", "etcd2", "acme", "acme-test", "foo"},
},
{
name: "Include prefix match",
include: []string{"etc*"},
expected: []string{"etcd", "etcd2"},
},
{
name: "Exact match",
include: []string{"etcd"},
expected: []string{"etcd"},
},
{
name: "Star matches zero length",
include: []string{"etcd2*"},
expected: []string{"etcd2"},
},
{
name: "Exclude matches all",
exclude: []string{"etc*"},
expected: []string{"acme", "acme-test", "foo"},
},
{
name: "Exclude single",
exclude: []string{"etcd"},
expected: []string{"etcd2", "acme", "acme-test", "foo"},
},
{
name: "Exclude all",
include: []string{"*"},
exclude: []string{"*"},
},
{
name: "Exclude item matching include",
include: []string{"acme*"},
exclude: []string{"*test*"},
expected: []string{"acme"},
},
{
name: "Exclude item no wildcards",
include: []string{"acme*"},
exclude: []string{"test"},
expected: []string{"acme", "acme-test"},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var acc testutil.Accumulator
newClientFunc := func(string, *tls.Config) (dockerClient, error) {
client := baseClient
client.ContainerListF = func(container.ListOptions) ([]types.Container, error) {
return containerList, nil
}
client.ContainerStatsF = func(s string) (container.StatsResponseReader, error) {
return containerStats(s), nil
}
return &client, nil
}
d := Docker{
Log: testutil.Logger{},
newClient: newClientFunc,
ContainerInclude: tt.include,
ContainerExclude: tt.exclude,
}
err := d.Gather(&acc)
require.NoError(t, err)
// Set of expected names
var expected = make(map[string]bool)
for _, v := range tt.expected {
expected[v] = true
}
// Set of actual names
var actual = make(map[string]bool)
for _, metric := range acc.Metrics {
if name, ok := metric.Tags["container_name"]; ok {
actual[name] = true
}
}
require.Equal(t, expected, actual)
})
}
}
func filterMetrics(metrics []telegraf.Metric, f func(telegraf.Metric) bool) []telegraf.Metric {
results := make([]telegraf.Metric, 0, len(metrics))
for _, m := range metrics {
if f(m) {
results = append(results, m)
}
}
return results
}
func TestContainerStatus(t *testing.T) {
var tests = []struct {
name string
now func() time.Time
inspect types.ContainerJSON
expected []telegraf.Metric
}{
{
name: "finished_at is zero value",
now: func() time.Time {
return time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC)
},
inspect: containerInspect(),
expected: []telegraf.Metric{
testutil.MustMetric(
"docker_container_status",
map[string]string{
"container_name": "etcd",
"container_image": "quay.io/coreos/etcd",
"container_version": "v3.3.25",
"engine_host": "absol",
"label1": "test_value_1",
"label2": "test_value_2",
"server_version": "17.09.0-ce",
"container_status": "running",
"source": "e2173b9478a6",
},
map[string]interface{}{
"oomkilled": false,
"pid": 1234,
"restart_count": 0,
"exitcode": 0,
"container_id": "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
"started_at": time.Date(2018, 6, 14, 5, 48, 53, 266176036, time.UTC).UnixNano(),
"uptime_ns": int64(3 * time.Minute),
},
time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC),
),
},
},
{
name: "finished_at is non-zero value",
now: func() time.Time {
return time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC)
},
inspect: func() types.ContainerJSON {
i := containerInspect()
i.ContainerJSONBase.State.FinishedAt = "2018-06-14T05:53:53.266176036Z"
return i
}(),
expected: []telegraf.Metric{
testutil.MustMetric(
"docker_container_status",
map[string]string{
"container_name": "etcd",
"container_image": "quay.io/coreos/etcd",
"container_version": "v3.3.25",
"engine_host": "absol",
"label1": "test_value_1",
"label2": "test_value_2",
"server_version": "17.09.0-ce",
"container_status": "running",
"source": "e2173b9478a6",
},
map[string]interface{}{
"oomkilled": false,
"pid": 1234,
"exitcode": 0,
"restart_count": 0,
"container_id": "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
"started_at": time.Date(2018, 6, 14, 5, 48, 53, 266176036, time.UTC).UnixNano(),
"finished_at": time.Date(2018, 6, 14, 5, 53, 53, 266176036, time.UTC).UnixNano(),
"uptime_ns": int64(5 * time.Minute),
},
time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC),
),
},
},
{
name: "started_at is zero value",
now: func() time.Time {
return time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC)
},
inspect: func() types.ContainerJSON {
i := containerInspect()
i.ContainerJSONBase.State.StartedAt = ""
i.ContainerJSONBase.State.FinishedAt = "2018-06-14T05:53:53.266176036Z"
return i
}(),
expected: []telegraf.Metric{
testutil.MustMetric(
"docker_container_status",
map[string]string{
"container_name": "etcd",
"container_image": "quay.io/coreos/etcd",
"container_version": "v3.3.25",
"engine_host": "absol",
"label1": "test_value_1",
"label2": "test_value_2",
"server_version": "17.09.0-ce",
"container_status": "running",
"source": "e2173b9478a6",
},
map[string]interface{}{
"oomkilled": false,
"pid": 1234,
"exitcode": 0,
"restart_count": 0,
"container_id": "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
"finished_at": time.Date(2018, 6, 14, 5, 53, 53, 266176036, time.UTC).UnixNano(),
},
time.Date(2018, 6, 14, 5, 51, 53, 266176036, time.UTC),
),
},
},
{
name: "container has been restarted",
now: func() time.Time {
return time.Date(2019, 1, 1, 0, 0, 3, 0, time.UTC)
},
inspect: func() types.ContainerJSON {
i := containerInspect()
i.ContainerJSONBase.State.StartedAt = "2019-01-01T00:00:02Z"
i.ContainerJSONBase.State.FinishedAt = "2019-01-01T00:00:01Z"
return i
}(),
expected: []telegraf.Metric{
testutil.MustMetric(
"docker_container_status",
map[string]string{
"container_name": "etcd",
"container_image": "quay.io/coreos/etcd",
"container_version": "v3.3.25",
"engine_host": "absol",
"label1": "test_value_1",
"label2": "test_value_2",
"server_version": "17.09.0-ce",
"container_status": "running",
"source": "e2173b9478a6",
},
map[string]interface{}{
"oomkilled": false,
"pid": 1234,
"exitcode": 0,
"restart_count": 0,
"container_id": "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
"started_at": time.Date(2019, 1, 1, 0, 0, 2, 0, time.UTC).UnixNano(),
"finished_at": time.Date(2019, 1, 1, 0, 0, 1, 0, time.UTC).UnixNano(),
"uptime_ns": int64(1 * time.Second),
},
time.Date(2019, 1, 1, 0, 0, 3, 0, time.UTC),
),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var (
acc testutil.Accumulator
newClientFunc = func(string, *tls.Config) (dockerClient, error) {
client := baseClient
client.ContainerListF = func(container.ListOptions) ([]types.Container, error) {
return containerList[:1], nil
}
client.ContainerInspectF = func() (types.ContainerJSON, error) {
return tt.inspect, nil
}
return &client, nil
}
d = Docker{
Log: testutil.Logger{},
newClient: newClientFunc,
IncludeSourceTag: true,
}
)
// mock time
if tt.now != nil {
now = tt.now
}
defer func() {
now = time.Now
}()
err := d.Gather(&acc)
require.NoError(t, err)
actual := filterMetrics(acc.GetTelegrafMetrics(), func(m telegraf.Metric) bool {
return m.Name() == "docker_container_status"
})
testutil.RequireMetricsEqual(t, tt.expected, actual)
})
}
}
func TestDockerGatherInfo(t *testing.T) {
var acc testutil.Accumulator
d := Docker{
Log: testutil.Logger{},
newClient: func(string, *tls.Config) (dockerClient, error) { return &baseClient, nil },
TagEnvironment: []string{"ENVVAR1", "ENVVAR2", "ENVVAR3", "ENVVAR5",
"ENVVAR6", "ENVVAR7", "ENVVAR8", "ENVVAR9"},
PerDeviceInclude: []string{"cpu", "network", "blkio"},
Total: true,
TotalInclude: []string{""},
}
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",
"server_version": "17.09.0-ce",
},
)
acc.AssertContainsTaggedFields(t,
"docker",
map[string]interface{}{
"memory_total": int64(3840757760),
},
map[string]string{
"engine_host": "absol",
"server_version": "17.09.0-ce",
},
)
acc.AssertContainsTaggedFields(t,
"docker",
map[string]interface{}{
"pool_blocksize": int64(65540),
},
map[string]string{
"engine_host": "absol",
"server_version": "17.09.0-ce",
"unit": "bytes",
},
)
acc.AssertContainsTaggedFields(t,
"docker_data",
map[string]interface{}{
"used": int64(17300000000),
"total": int64(107400000000),
"available": int64(36530000000),
},
map[string]string{
"engine_host": "absol",
"server_version": "17.09.0-ce",
"unit": "bytes",
},
)
acc.AssertContainsTaggedFields(t,
"docker_metadata",
map[string]interface{}{
"used": int64(20970000),
"total": int64(2146999999),
"available": int64(2126999999),
},
map[string]string{
"engine_host": "absol",
"server_version": "17.09.0-ce",
"unit": "bytes",
},
)
acc.AssertContainsTaggedFields(t,
"docker_devicemapper",