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telegraf/plugins/inputs/docker/docker_test.go

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Refactor the docker plugin, use go-dockerclient throughout fixes #503 fixes #463
2016-01-20 23:21:19 +00:00
package system
import (
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"encoding/json"
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"testing"
"time"
"github.com/influxdata/telegraf/testutil"
"github.com/fsouza/go-dockerclient"
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"github.com/stretchr/testify/require"
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)
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",
}
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gatherContainerStats(stats, &acc, tags)
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// 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
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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),
}
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acc.AssertContainsTaggedFields(t, "docker_mem", memfields, tags)
// test docker_cpu measurement
cputags := copyTags(tags)
cputags["cpu"] = "cpu-total"
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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),
}
Refactor the docker plugin, use go-dockerclient throughout fixes #503 fixes #463
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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
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stats.PreCPUStats.CPUUsage.TotalUsage = 400
stats.PreCPUStats.SystemCPUUsage = 50
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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
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stats.MemoryStats.Limit = 2000
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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
}
Improve docker input plugin
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type FakeDockerClient struct {
}
func (d FakeDockerClient) Info() (*docker.Env, error) {
env := docker.Env{"Containers=108", "OomKillDisable=false", "SystemTime=2016-02-24T00:55:09.15073105-05:00", "NEventsListener=0", "ID=5WQQ:TFWR:FDNG:OKQ3:37Y4:FJWG:QIKK:623T:R3ME:QTKB:A7F7:OLHD", "Debug=false", "LoggingDriver=json-file", "KernelVersion=4.3.0-1-amd64", "IndexServerAddress=https://index.docker.io/v1/", "MemTotal=3840757760", "Images=199", "CpuCfsQuota=true", "Name=absol", "SwapLimit=false", "IPv4Forwarding=true", "ExecutionDriver=native-0.2", "InitSha1=23a51f3c916d2b5a3bbb31caf301fd2d14edd518", "ExperimentalBuild=false", "CpuCfsPeriod=true", "RegistryConfig={\"IndexConfigs\":{\"docker.io\":{\"Mirrors\":null,\"Name\":\"docker.io\",\"Official\":true,\"Secure\":true}},\"InsecureRegistryCIDRs\":[\"127.0.0.0/8\"],\"Mirrors\":null}", "OperatingSystem=Linux Mint LMDE (containerized)", "BridgeNfIptables=true", "HttpsProxy=", "Labels=null", "MemoryLimit=false", "DriverStatus=[[\"Pool Name\",\"docker-8:1-1182287-pool\"],[\"Pool Blocksize\",\"65.54 kB\"],[\"Backing Filesystem\",\"extfs\"],[\"Data file\",\"/dev/loop0\"],[\"Metadata file\",\"/dev/loop1\"],[\"Data Space Used\",\"17.3 GB\"],[\"Data Space Total\",\"107.4 GB\"],[\"Data Space Available\",\"36.53 GB\"],[\"Metadata Space Used\",\"20.97 MB\"],[\"Metadata Space Total\",\"2.147 GB\"],[\"Metadata Space Available\",\"2.127 GB\"],[\"Udev Sync Supported\",\"true\"],[\"Deferred Removal Enabled\",\"false\"],[\"Data loop file\",\"/var/lib/docker/devicemapper/devicemapper/data\"],[\"Metadata loop file\",\"/var/lib/docker/devicemapper/devicemapper/metadata\"],[\"Library Version\",\"1.02.115 (2016-01-25)\"]]", "NFd=19", "HttpProxy=", "Driver=devicemapper", "NGoroutines=39", "InitPath=/usr/lib/docker.io/dockerinit", "NCPU=4", "DockerRootDir=/var/lib/docker", "NoProxy=", "BridgeNfIp6tables=true"}
return &env, nil
}
func (d FakeDockerClient) ListContainers(opts docker.ListContainersOptions) ([]docker.APIContainers, error) {
container1 := docker.APIContainers{
ID: "e2173b9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296b7dfb",
Image: "quay.io/coreos/etcd:v2.2.2",
Command: "/etcd -name etcd0 -advertise-client-urls http://localhost:2379 -listen-client-urls http://0.0.0.0:2379",
Created: 1455941930,
Status: "Up 4 hours",
Ports: []docker.APIPort{
docker.APIPort{
PrivatePort: 7001,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 4001,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 2380,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 2379,
PublicPort: 2379,
Type: "tcp",
IP: "0.0.0.0",
},
},
SizeRw: 0,
SizeRootFs: 0,
Names: []string{"/etcd"},
}
container2 := docker.APIContainers{
ID: "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
Image: "quay.io/coreos/etcd:v2.2.2",
Command: "/etcd -name etcd2 -advertise-client-urls http://localhost:2379 -listen-client-urls http://0.0.0.0:2379",
Created: 1455941933,
Status: "Up 4 hours",
Ports: []docker.APIPort{
docker.APIPort{
PrivatePort: 7002,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 4002,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 2381,
PublicPort: 0,
Type: "tcp",
},
docker.APIPort{
PrivatePort: 2382,
PublicPort: 2382,
Type: "tcp",
IP: "0.0.0.0",
},
},
SizeRw: 0,
SizeRootFs: 0,
Names: []string{"/etcd2"},
}
containers := []docker.APIContainers{container1, container2}
return containers, nil
//#{e6a96c84ca91a5258b7cb752579fb68826b68b49ff957487695cd4d13c343b44 titilambert/snmpsim /bin/sh -c 'snmpsimd --agent-udpv4-endpoint=0.0.0.0:31161 --process-user=root --process-group=user' 1455724831 Up 4 hours [{31161 31161 udp 0.0.0.0}] 0 0 [/snmp] map[]}]2016/02/24 01:05:01 Gathered metrics, (3s interval), from 1 inputs in 1.233836656s
}
func (d FakeDockerClient) Stats(opts docker.StatsOptions) error {
jsonStat := `{"read":"2016-02-24T11:42:27.472459608-05:00","memory_stats":{"stats":{},"limit":18935443456},"blkio_stats":{"io_service_bytes_recursive":[{"major":252,"minor":1,"op":"Read","value":753664},{"major":252,"minor":1,"op":"Write"},{"major":252,"minor":1,"op":"Sync"},{"major":252,"minor":1,"op":"Async","value":753664},{"major":252,"minor":1,"op":"Total","value":753664}],"io_serviced_recursive":[{"major":252,"minor":1,"op":"Read","value":26},{"major":252,"minor":1,"op":"Write"},{"major":252,"minor":1,"op":"Sync"},{"major":252,"minor":1,"op":"Async","value":26},{"major":252,"minor":1,"op":"Total","value":26}]},"cpu_stats":{"cpu_usage":{"percpu_usage":[17871,4959158,1646137,1231652,11829401,244656,369972,0],"usage_in_usermode":10000000,"total_usage":20298847},"system_cpu_usage":24052607520000000,"throttling_data":{}},"precpu_stats":{"cpu_usage":{"percpu_usage":[17871,4959158,1646137,1231652,11829401,244656,369972,0],"usage_in_usermode":10000000,"total_usage":20298847},"system_cpu_usage":24052599550000000,"throttling_data":{}}}`
var stat docker.Stats
json.Unmarshal([]byte(jsonStat), &stat)
opts.Stats <- &stat
return nil
}
func TestDockerGatherInfo(t *testing.T) {
var acc testutil.Accumulator
client := FakeDockerClient{}
d := Docker{client: client}
err := d.Gather(&acc)
require.NoError(t, err)
acc.AssertContainsTaggedFields(t,
"docker",
map[string]interface{}{
"n_listener_events": int64(0),
"n_cpus": int64(4),
"n_used_file_descriptors": int64(19),
"n_containers": int64(108),
"n_images": int64(199),
"n_goroutines": int64(39),
},
map[string]string{},
)
acc.AssertContainsTaggedFields(t,
"docker_data",
map[string]interface{}{
"used": int64(17300000000),
"total": int64(107400000000),
"available": int64(36530000000),
},
map[string]string{
"unit": "bytes",
},
)
acc.AssertContainsTaggedFields(t,
"docker_cpu",
map[string]interface{}{
"usage_total": uint64(1231652),
},
map[string]string{
"cont_id": "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
"cont_name": "etcd2",
"cont_image": "quay.io/coreos/etcd:v2.2.2",
"cpu": "cpu3",
},
)
acc.AssertContainsTaggedFields(t,
"docker_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),
},
map[string]string{
"cont_id": "b7dfbb9478a6ae55e237d4d74f8bbb753f0817192b5081334dc78476296e2173",
"cont_name": "etcd2",
"cont_image": "quay.io/coreos/etcd:v2.2.2",
},
)
//fmt.Print(info)
}