package system import ( "encoding/json" "testing" "time" "github.com/influxdata/telegraf/testutil" "github.com/fsouza/go-dockerclient" "github.com/stretchr/testify/require" ) 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(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), } 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), "usage_percent": float64(400.0), } 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.PreCPUStats.CPUUsage.TotalUsage = 400 stats.PreCPUStats.SystemCPUUsage = 50 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 = 2000 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 } 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) }