| package jsonfilelog |
| |
| import ( |
| "bytes" |
| "encoding/json" |
| "io/ioutil" |
| "os" |
| "path/filepath" |
| "reflect" |
| "strconv" |
| "testing" |
| "time" |
| |
| "github.com/docker/docker/daemon/logger" |
| "github.com/docker/docker/daemon/logger/jsonfilelog/jsonlog" |
| "github.com/gotestyourself/gotestyourself/fs" |
| "github.com/stretchr/testify/require" |
| ) |
| |
| func TestJSONFileLogger(t *testing.T) { |
| cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657" |
| tmp, err := ioutil.TempDir("", "docker-logger-") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer os.RemoveAll(tmp) |
| filename := filepath.Join(tmp, "container.log") |
| l, err := New(logger.Info{ |
| ContainerID: cid, |
| LogPath: filename, |
| }) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer l.Close() |
| |
| if err := l.Log(&logger.Message{Line: []byte("line1"), Source: "src1"}); err != nil { |
| t.Fatal(err) |
| } |
| if err := l.Log(&logger.Message{Line: []byte("line2"), Source: "src2"}); err != nil { |
| t.Fatal(err) |
| } |
| if err := l.Log(&logger.Message{Line: []byte("line3"), Source: "src3"}); err != nil { |
| t.Fatal(err) |
| } |
| res, err := ioutil.ReadFile(filename) |
| if err != nil { |
| t.Fatal(err) |
| } |
| expected := `{"log":"line1\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line2\n","stream":"src2","time":"0001-01-01T00:00:00Z"} |
| {"log":"line3\n","stream":"src3","time":"0001-01-01T00:00:00Z"} |
| ` |
| |
| if string(res) != expected { |
| t.Fatalf("Wrong log content: %q, expected %q", res, expected) |
| } |
| } |
| |
| func BenchmarkJSONFileLoggerLog(b *testing.B) { |
| tmp := fs.NewDir(b, "bench-jsonfilelog") |
| defer tmp.Remove() |
| |
| jsonlogger, err := New(logger.Info{ |
| ContainerID: "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657", |
| LogPath: tmp.Join("container.log"), |
| Config: map[string]string{ |
| "labels": "first,second", |
| }, |
| ContainerLabels: map[string]string{ |
| "first": "label_value", |
| "second": "label_foo", |
| }, |
| }) |
| require.NoError(b, err) |
| defer jsonlogger.Close() |
| |
| msg := &logger.Message{ |
| Line: []byte("Line that thinks that it is log line from docker\n"), |
| Source: "stderr", |
| Timestamp: time.Now().UTC(), |
| } |
| |
| buf := bytes.NewBuffer(nil) |
| require.NoError(b, marshalMessage(msg, nil, buf)) |
| b.SetBytes(int64(buf.Len())) |
| |
| b.ResetTimer() |
| for i := 0; i < b.N; i++ { |
| if err := jsonlogger.Log(msg); err != nil { |
| b.Fatal(err) |
| } |
| } |
| } |
| |
| func TestJSONFileLoggerWithOpts(t *testing.T) { |
| cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657" |
| tmp, err := ioutil.TempDir("", "docker-logger-") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer os.RemoveAll(tmp) |
| filename := filepath.Join(tmp, "container.log") |
| config := map[string]string{"max-file": "2", "max-size": "1k"} |
| l, err := New(logger.Info{ |
| ContainerID: cid, |
| LogPath: filename, |
| Config: config, |
| }) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer l.Close() |
| for i := 0; i < 20; i++ { |
| if err := l.Log(&logger.Message{Line: []byte("line" + strconv.Itoa(i)), Source: "src1"}); err != nil { |
| t.Fatal(err) |
| } |
| } |
| res, err := ioutil.ReadFile(filename) |
| if err != nil { |
| t.Fatal(err) |
| } |
| penUlt, err := ioutil.ReadFile(filename + ".1") |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| expectedPenultimate := `{"log":"line0\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line1\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line2\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line3\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line4\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line5\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line6\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line7\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line8\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line9\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line10\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line11\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line12\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line13\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line14\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line15\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| ` |
| expected := `{"log":"line16\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line17\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line18\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| {"log":"line19\n","stream":"src1","time":"0001-01-01T00:00:00Z"} |
| ` |
| |
| if string(res) != expected { |
| t.Fatalf("Wrong log content: %q, expected %q", res, expected) |
| } |
| if string(penUlt) != expectedPenultimate { |
| t.Fatalf("Wrong log content: %q, expected %q", penUlt, expectedPenultimate) |
| } |
| |
| } |
| |
| func TestJSONFileLoggerWithLabelsEnv(t *testing.T) { |
| cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657" |
| tmp, err := ioutil.TempDir("", "docker-logger-") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer os.RemoveAll(tmp) |
| filename := filepath.Join(tmp, "container.log") |
| config := map[string]string{"labels": "rack,dc", "env": "environ,debug,ssl", "env-regex": "^dc"} |
| l, err := New(logger.Info{ |
| ContainerID: cid, |
| LogPath: filename, |
| Config: config, |
| ContainerLabels: map[string]string{"rack": "101", "dc": "lhr"}, |
| ContainerEnv: []string{"environ=production", "debug=false", "port=10001", "ssl=true", "dc_region=west"}, |
| }) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer l.Close() |
| if err := l.Log(&logger.Message{Line: []byte("line"), Source: "src1"}); err != nil { |
| t.Fatal(err) |
| } |
| res, err := ioutil.ReadFile(filename) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| var jsonLog jsonlog.JSONLogs |
| if err := json.Unmarshal(res, &jsonLog); err != nil { |
| t.Fatal(err) |
| } |
| extra := make(map[string]string) |
| if err := json.Unmarshal(jsonLog.RawAttrs, &extra); err != nil { |
| t.Fatal(err) |
| } |
| expected := map[string]string{ |
| "rack": "101", |
| "dc": "lhr", |
| "environ": "production", |
| "debug": "false", |
| "ssl": "true", |
| "dc_region": "west", |
| } |
| if !reflect.DeepEqual(extra, expected) { |
| t.Fatalf("Wrong log attrs: %q, expected %q", extra, expected) |
| } |
| } |