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moby--moby/daemon/logger/jsonfilelog/jsonfilelog_test.go
Joseph Rothrock 9758a2a724 Use a regex to match environment variables #27565
Signed-off-by: Joseph Rothrock <rothrock@rothrock.org>
2017-01-19 15:30:11 -08:00

249 lines
6.8 KiB
Go

package jsonfilelog
import (
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"strconv"
"testing"
"time"
"github.com/docker/docker/daemon/logger"
"github.com/docker/docker/pkg/jsonlog"
)
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 BenchmarkJSONFileLogger(b *testing.B) {
cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
tmp, err := ioutil.TempDir("", "docker-logger-")
if err != nil {
b.Fatal(err)
}
defer os.RemoveAll(tmp)
filename := filepath.Join(tmp, "container.log")
l, err := New(logger.Info{
ContainerID: cid,
LogPath: filename,
})
if err != nil {
b.Fatal(err)
}
defer l.Close()
testLine := "Line that thinks that it is log line from docker\n"
msg := &logger.Message{Line: []byte(testLine), Source: "stderr", Timestamp: time.Now().UTC()}
jsonlog, err := (&jsonlog.JSONLog{Log: string(msg.Line) + "\n", Stream: msg.Source, Created: msg.Timestamp}).MarshalJSON()
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(jsonlog)+1) * 30)
b.ResetTimer()
for i := 0; i < b.N; i++ {
for j := 0; j < 30; j++ {
if err := l.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)
}
}
func BenchmarkJSONFileLoggerWithReader(b *testing.B) {
b.StopTimer()
b.ResetTimer()
cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
dir, err := ioutil.TempDir("", "json-logger-bench")
if err != nil {
b.Fatal(err)
}
defer os.RemoveAll(dir)
l, err := New(logger.Info{
ContainerID: cid,
LogPath: filepath.Join(dir, "container.log"),
})
if err != nil {
b.Fatal(err)
}
defer l.Close()
msg := &logger.Message{Line: []byte("line"), Source: "src1"}
jsonlog, err := (&jsonlog.JSONLog{Log: string(msg.Line) + "\n", Stream: msg.Source, Created: msg.Timestamp}).MarshalJSON()
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(jsonlog)+1) * 30)
b.StartTimer()
go func() {
for i := 0; i < b.N; i++ {
for j := 0; j < 30; j++ {
l.Log(msg)
}
}
l.Close()
}()
lw := l.(logger.LogReader).ReadLogs(logger.ReadConfig{Follow: true})
watchClose := lw.WatchClose()
for {
select {
case <-lw.Msg:
case <-watchClose:
return
}
}
}