OpenTelemetry Logs and Access Logs
Co-authored-by: Kevin Pollet <pollet.kevin@gmail.com>
This commit is contained in:
Romain
GitHub
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commit
826a2b74aa
33 changed files with 2297 additions and 475 deletions
197
pkg/logs/otel_test.go
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197
pkg/logs/otel_test.go
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package logs
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import (
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"compress/gzip"
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"context"
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"encoding/json"
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"io"
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"net/http"
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"net/http/httptest"
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"os"
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"testing"
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"time"
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"github.com/rs/zerolog"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/traefik/traefik/v3/pkg/types"
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"go.opentelemetry.io/collector/pdata/plog/plogotlp"
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"go.opentelemetry.io/otel/trace"
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)
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func TestLog(t *testing.T) {
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tests := []struct {
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desc string
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level zerolog.Level
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assertFn func(*testing.T, string)
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noLog bool
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}{
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{
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desc: "no level log",
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level: zerolog.NoLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityUndefined Severity = 0 // UNDEFINED
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assert.NotContains(t, log, `"severityNumber"`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "trace log",
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level: zerolog.TraceLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityTrace1 Severity = 1 // TRACE
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assert.Contains(t, log, `"severityNumber":1`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "debug log",
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level: zerolog.DebugLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityDebug1 Severity = 5 // DEBUG
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assert.Contains(t, log, `"severityNumber":5`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "info log",
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level: zerolog.InfoLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityInfo1 Severity = 9 // INFO
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assert.Contains(t, log, `"severityNumber":9`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "warn log",
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level: zerolog.WarnLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityWarn1 Severity = 13 // WARN
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assert.Contains(t, log, `"severityNumber":13`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "error log",
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level: zerolog.ErrorLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityError1 Severity = 17 // ERROR
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assert.Contains(t, log, `"severityNumber":17`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "fatal log",
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level: zerolog.FatalLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityFatal Severity = 21 // FATAL
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assert.Contains(t, log, `"severityNumber":21`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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{
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desc: "panic log",
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level: zerolog.PanicLevel,
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assertFn: func(t *testing.T, log string) {
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t.Helper()
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// SeverityFatal4 Severity = 24 // FATAL
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assert.Contains(t, log, `"severityNumber":24`)
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assert.Regexp(t, `{"key":"resource","value":{"stringValue":"attribute"}}`, log)
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assert.Regexp(t, `{"key":"service.name","value":{"stringValue":"test"}}`, log)
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assert.Regexp(t, `"body":{"stringValue":"test"}`, log)
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assert.Regexp(t, `{"key":"foo","value":{"stringValue":"bar"}}`, log)
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assert.Regexp(t, `"traceId":"01020304050607080000000000000000","spanId":"0102030405060708"`, log)
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},
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},
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}
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logCh := make(chan string)
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collector := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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gzr, err := gzip.NewReader(r.Body)
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require.NoError(t, err)
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body, err := io.ReadAll(gzr)
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require.NoError(t, err)
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req := plogotlp.NewExportRequest()
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err = req.UnmarshalProto(body)
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require.NoError(t, err)
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marshalledReq, err := json.Marshal(req)
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require.NoError(t, err)
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logCh <- string(marshalledReq)
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}))
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t.Cleanup(collector.Close)
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for _, test := range tests {
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t.Run(test.desc, func(t *testing.T) {
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config := &types.OTelLog{
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ServiceName: "test",
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ResourceAttributes: map[string]string{"resource": "attribute"},
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HTTP: &types.OTelHTTP{
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Endpoint: collector.URL,
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},
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}
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out := zerolog.MultiLevelWriter(zerolog.ConsoleWriter{Out: os.Stderr, TimeFormat: time.RFC3339})
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logger := zerolog.New(out).With().Caller().Logger()
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logger, err := SetupOTelLogger(logger, config)
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require.NoError(t, err)
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ctx := trace.ContextWithSpanContext(context.Background(), trace.NewSpanContext(trace.SpanContextConfig{
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TraceID: trace.TraceID{0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8},
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SpanID: trace.SpanID{0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8},
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}))
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logger = logger.With().Ctx(ctx).Logger()
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logger.WithLevel(test.level).Str("foo", "bar").Msg("test")
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select {
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case <-time.After(5 * time.Second):
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t.Error("Log not exported")
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case log := <-logCh:
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if test.assertFn != nil {
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test.assertFn(t, log)
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}
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}
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})
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}
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}
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