250 lines
6.8 KiB
Go
250 lines
6.8 KiB
Go
package jsonfilelog
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"strconv"
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"testing"
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"time"
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"github.com/docker/docker/daemon/logger"
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"github.com/docker/docker/pkg/jsonlog"
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)
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func TestJSONFileLogger(t *testing.T) {
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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tmp, err := ioutil.TempDir("", "docker-logger-")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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filename := filepath.Join(tmp, "container.log")
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l, err := New(logger.Info{
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ContainerID: cid,
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LogPath: filename,
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})
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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if err := l.Log(&logger.Message{Line: []byte("line1"), Source: "src1"}); err != nil {
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t.Fatal(err)
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}
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if err := l.Log(&logger.Message{Line: []byte("line2"), Source: "src2"}); err != nil {
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t.Fatal(err)
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}
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if err := l.Log(&logger.Message{Line: []byte("line3"), Source: "src3"}); err != nil {
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t.Fatal(err)
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}
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res, err := ioutil.ReadFile(filename)
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if err != nil {
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t.Fatal(err)
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}
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expected := `{"log":"line1\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line2\n","stream":"src2","time":"0001-01-01T00:00:00Z"}
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{"log":"line3\n","stream":"src3","time":"0001-01-01T00:00:00Z"}
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`
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if string(res) != expected {
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t.Fatalf("Wrong log content: %q, expected %q", res, expected)
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}
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}
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func BenchmarkJSONFileLogger(b *testing.B) {
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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tmp, err := ioutil.TempDir("", "docker-logger-")
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if err != nil {
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b.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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filename := filepath.Join(tmp, "container.log")
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l, err := New(logger.Info{
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ContainerID: cid,
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LogPath: filename,
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})
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if err != nil {
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b.Fatal(err)
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}
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defer l.Close()
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testLine := "Line that thinks that it is log line from docker\n"
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msg := &logger.Message{Line: []byte(testLine), Source: "stderr", Timestamp: time.Now().UTC()}
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jsonlog, err := (&jsonlog.JSONLog{Log: string(msg.Line) + "\n", Stream: msg.Source, Created: msg.Timestamp}).MarshalJSON()
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if err != nil {
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b.Fatal(err)
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}
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b.SetBytes(int64(len(jsonlog)+1) * 30)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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for j := 0; j < 30; j++ {
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if err := l.Log(msg); err != nil {
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b.Fatal(err)
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}
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}
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}
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}
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func TestJSONFileLoggerWithOpts(t *testing.T) {
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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tmp, err := ioutil.TempDir("", "docker-logger-")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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filename := filepath.Join(tmp, "container.log")
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config := map[string]string{"max-file": "2", "max-size": "1k"}
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l, err := New(logger.Info{
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ContainerID: cid,
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LogPath: filename,
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Config: config,
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})
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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for i := 0; i < 20; i++ {
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if err := l.Log(&logger.Message{Line: []byte("line" + strconv.Itoa(i)), Source: "src1"}); err != nil {
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t.Fatal(err)
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}
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}
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res, err := ioutil.ReadFile(filename)
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if err != nil {
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t.Fatal(err)
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}
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penUlt, err := ioutil.ReadFile(filename + ".1")
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if err != nil {
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t.Fatal(err)
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}
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expectedPenultimate := `{"log":"line0\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line1\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line2\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line3\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line4\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line5\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line6\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line7\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line8\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line9\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line10\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line11\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line12\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line13\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line14\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line15\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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`
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expected := `{"log":"line16\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line17\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line18\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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{"log":"line19\n","stream":"src1","time":"0001-01-01T00:00:00Z"}
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`
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if string(res) != expected {
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t.Fatalf("Wrong log content: %q, expected %q", res, expected)
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}
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if string(penUlt) != expectedPenultimate {
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t.Fatalf("Wrong log content: %q, expected %q", penUlt, expectedPenultimate)
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}
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}
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func TestJSONFileLoggerWithLabelsEnv(t *testing.T) {
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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tmp, err := ioutil.TempDir("", "docker-logger-")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmp)
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filename := filepath.Join(tmp, "container.log")
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config := map[string]string{"labels": "rack,dc", "env": "environ,debug,ssl", "env-regex": "^dc"}
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l, err := New(logger.Info{
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ContainerID: cid,
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LogPath: filename,
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Config: config,
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ContainerLabels: map[string]string{"rack": "101", "dc": "lhr"},
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ContainerEnv: []string{"environ=production", "debug=false", "port=10001", "ssl=true", "dc_region=west"},
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})
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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if err := l.Log(&logger.Message{Line: []byte("line"), Source: "src1"}); err != nil {
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t.Fatal(err)
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}
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res, err := ioutil.ReadFile(filename)
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if err != nil {
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t.Fatal(err)
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}
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var jsonLog jsonlog.JSONLogs
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if err := json.Unmarshal(res, &jsonLog); err != nil {
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t.Fatal(err)
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}
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extra := make(map[string]string)
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if err := json.Unmarshal(jsonLog.RawAttrs, &extra); err != nil {
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t.Fatal(err)
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}
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expected := map[string]string{
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"rack": "101",
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"dc": "lhr",
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"environ": "production",
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"debug": "false",
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"ssl": "true",
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"dc_region": "west",
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}
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if !reflect.DeepEqual(extra, expected) {
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t.Fatalf("Wrong log attrs: %q, expected %q", extra, expected)
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}
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}
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func BenchmarkJSONFileLoggerWithReader(b *testing.B) {
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b.StopTimer()
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b.ResetTimer()
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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dir, err := ioutil.TempDir("", "json-logger-bench")
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if err != nil {
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b.Fatal(err)
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}
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defer os.RemoveAll(dir)
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l, err := New(logger.Info{
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ContainerID: cid,
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LogPath: filepath.Join(dir, "container.log"),
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})
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if err != nil {
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b.Fatal(err)
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}
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defer l.Close()
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msg := &logger.Message{Line: []byte("line"), Source: "src1"}
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jsonlog, err := (&jsonlog.JSONLog{Log: string(msg.Line) + "\n", Stream: msg.Source, Created: msg.Timestamp}).MarshalJSON()
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if err != nil {
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b.Fatal(err)
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}
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b.SetBytes(int64(len(jsonlog)+1) * 30)
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b.StartTimer()
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go func() {
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for i := 0; i < b.N; i++ {
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for j := 0; j < 30; j++ {
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l.Log(msg)
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}
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}
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l.Close()
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}()
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lw := l.(logger.LogReader).ReadLogs(logger.ReadConfig{Follow: true})
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watchClose := lw.WatchClose()
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for {
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select {
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case <-lw.Msg:
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case <-watchClose:
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return
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}
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}
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}
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