From 6362843e67f21274c3ee5a719d3a6393c5612699 Mon Sep 17 00:00:00 2001
From: Sascha Andres <sascha.andres@outlook.com>
Date: Fri, 10 Mar 2017 10:34:13 +0100
Subject: [PATCH] Log payload only [logentries]

If you want to use the advanced query in logentries
logging in json is very useful. If you do not need
the advanced information with
--log-opt line-only=true just logs the payload

Signed-off-by: Sascha Andres <sascha.andres@outlook.com>
---
 daemon/logger/logentries/logentries.go | 44 ++++++++++++++++++--------
 1 file changed, 30 insertions(+), 14 deletions(-)

diff --git a/daemon/logger/logentries/logentries.go b/daemon/logger/logentries/logentries.go
index 7f6ff471db..e28707c746 100644
--- a/daemon/logger/logentries/logentries.go
+++ b/daemon/logger/logentries/logentries.go
@@ -4,9 +4,11 @@ package logentries
 
 import (
 	"fmt"
+	"strconv"
 
 	"github.com/bsphere/le_go"
 	"github.com/docker/docker/daemon/logger"
+	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )
 
@@ -16,11 +18,13 @@ type logentries struct {
 	containerName string
 	writer        *le_go.Logger
 	extra         map[string]string
+	lineOnly      bool
 }
 
 const (
-	name  = "logentries"
-	token = "logentries-token"
+	name     = "logentries"
+	token    = "logentries-token"
+	lineonly = "line-only"
 )
 
 func init() {
@@ -38,32 +42,44 @@ func init() {
 func New(info logger.Info) (logger.Logger, error) {
 	logrus.WithField("container", info.ContainerID).
 		WithField("token", info.Config[token]).
+		WithField("line-only", info.Config[lineonly]).
 		Debug("logging driver logentries configured")
 
 	log, err := le_go.Connect(info.Config[token])
 	if err != nil {
-		return nil, err
+		return nil, errors.Wrap(err, "error connecting to logentries")
+	}
+	var lineOnly bool
+	if lineOnly, err = strconv.ParseBool(info.Config[lineonly]); err != nil {
+		return nil, errors.Wrap(err, "error parsing lineonly option")
 	}
 	return &logentries{
 		containerID:   info.ContainerID,
 		containerName: info.ContainerName,
 		writer:        log,
+		lineOnly:      lineOnly,
 	}, nil
 }
 
 func (f *logentries) Log(msg *logger.Message) error {
-	data := map[string]string{
-		"container_id":   f.containerID,
-		"container_name": f.containerName,
-		"source":         msg.Source,
-		"log":            string(msg.Line),
+	if !f.lineOnly {
+		data := map[string]string{
+			"container_id":   f.containerID,
+			"container_name": f.containerName,
+			"source":         msg.Source,
+			"log":            string(msg.Line),
+		}
+		for k, v := range f.extra {
+			data[k] = v
+		}
+		ts := msg.Timestamp
+		logger.PutMessage(msg)
+		f.writer.Println(f.tag, ts, data)
+	} else {
+		line := msg.Line
+		logger.PutMessage(msg)
+		f.writer.Println(line)
 	}
-	for k, v := range f.extra {
-		data[k] = v
-	}
-	ts := msg.Timestamp
-	logger.PutMessage(msg)
-	f.writer.Println(f.tag, ts, data)
 	return nil
 }