示例#1
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文件: logging.go 项目: docker/docker
// Logger returns a Logger that will write entries with the given log ID, such as
// "syslog". A log ID must be less than 512 characters long and can only
// include the following characters: upper and lower case alphanumeric
// characters: [A-Za-z0-9]; and punctuation characters: forward-slash,
// underscore, hyphen, and period.
func (c *Client) Logger(logID string, opts ...LoggerOption) *Logger {
	l := &Logger{
		client:         c,
		logName:        internal.LogPath(c.parent(), logID),
		commonResource: &mrpb.MonitoredResource{Type: "global"},
	}
	// TODO(jba): determine the right context for the bundle handler.
	ctx := context.TODO()
	l.bundler = bundler.NewBundler(&logpb.LogEntry{}, func(entries interface{}) {
		l.writeLogEntries(ctx, entries.([]*logpb.LogEntry))
	})
	l.bundler.DelayThreshold = DefaultDelayThreshold
	l.bundler.BundleCountThreshold = DefaultEntryCountThreshold
	l.bundler.BundleByteThreshold = DefaultEntryByteThreshold
	l.bundler.BufferedByteLimit = DefaultBufferedByteLimit
	for _, opt := range opts {
		opt.set(l)
	}

	l.stdLoggers = map[Severity]*log.Logger{}
	for s := range severityName {
		l.stdLoggers[s] = log.New(severityWriter{l, s}, "", 0)
	}
	c.loggers.Add(1)
	go func() {
		defer c.loggers.Done()
		<-c.donec
		l.bundler.Close()
	}()
	return l
}
示例#2
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// deleteLog is used to clean up a log after a test that writes to it.
func deleteLog(ctx context.Context, logID string) {
	aclient.DeleteLog(ctx, logID)
	// DeleteLog can take some time to happen, so we wait for the log to
	// disappear. There is no direct way to determine if a log exists, so we
	// just wait until there are no log entries associated with the ID.
	filter := fmt.Sprintf(`logName = "%s"`, internal.LogPath("projects/"+testProjectID, logID))
	waitFor(func() bool { return countLogEntries(ctx, filter) == 0 })
}
示例#3
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文件: logging.go 项目: docker/docker
// Ping reports whether the client's connection to the logging service and the
// authentication configuration are valid. To accomplish this, Ping writes a
// log entry "ping" to a log named "ping".
func (c *Client) Ping(ctx context.Context) error {
	ent := &logpb.LogEntry{
		Payload:   &logpb.LogEntry_TextPayload{"ping"},
		Timestamp: unixZeroTimestamp, // Identical timestamps and insert IDs are both
		InsertId:  "ping",            // necessary for the service to dedup these entries.
	}
	_, err := c.client.WriteLogEntries(ctx, &logpb.WriteLogEntriesRequest{
		LogName:  internal.LogPath(c.parent(), "ping"),
		Resource: &mrpb.MonitoredResource{Type: "global"},
		Entries:  []*logpb.LogEntry{ent},
	})
	return err
}
示例#4
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func TestDeleteLog(t *testing.T) {
	initLogs(ctx) // Generate new testLogID
	// Write some log entries.
	ctx := context.Background()
	payloads := []string{"p1", "p2"}
	lg := client.Logger(testLogID)
	for _, p := range payloads {
		// Use the insert ID to guarantee iteration order.
		lg.Log(logging.Entry{Payload: p, InsertID: p})
	}
	lg.Flush()

	var got []*logging.Entry
	ok := waitFor(func() bool {
		var err error
		got, err = allTestLogEntries(ctx)
		if err != nil {
			t.Log("fetching log entries: ", err)
			return false
		}
		return len(got) == 2
	})
	if !ok {
		t.Fatalf("timed out; got: %d, want: %d\n", len(got), 2)
	}

	// Sleep.
	// Write timestamp uses client-provided timestamp, delete uses server
	// timestamp. We sleep to reduce the possibility that the logs are never
	// "deleted" because of clock skew.
	// This is the recommended approach by Stackdriver team.
	time.Sleep(3 * time.Second)

	// Delete the log
	err := aclient.DeleteLog(ctx, testLogID)
	if err != nil {
		log.Fatalf("error deleting log: %v", err)
	}

	// DeleteLog can take some time to happen, so we wait for the log to
	// disappear. There is no direct way to determine if a log exists, so we
	// just wait until there are no log entries associated with the ID.
	filter := fmt.Sprintf(`logName = "%s"`, internal.LogPath("projects/"+testProjectID, testLogID))
	ok = waitFor(func() bool { return countLogEntries(ctx, filter) == 0 })
	if !ok {
		t.Fatalf("timed out waiting for log entries to be deleted")
	}
}
示例#5
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// DeleteLog deletes a log and all its log entries. The log will reappear if it receives new entries.
// logID identifies the log within the project. An example log ID is "syslog". Requires AdminScope.
func (c *Client) DeleteLog(ctx context.Context, logID string) error {
	return c.lClient.DeleteLog(ctx, &logpb.DeleteLogRequest{
		LogName: internal.LogPath(c.parent(), logID),
	})
}