Merge branch '8784-dir-listings'

[arvados.git] / services / keepstore / config.go

diff --git a/services/keepstore/config.go b/services/keepstore/config.go
index 9c318d1245abcb285634ed46eaf17ddcabe300b2..19a614a1fa6fc42fd3cbe0166a9ed6c6e465043c 100644 (file)
--- a/services/keepstore/config.go
+++ b/services/keepstore/config.go
@@ -1,3 +1,7 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
 package main
 
 import (
@@ -5,16 +9,19 @@ import (
        "encoding/json"
        "fmt"
        "io/ioutil"
-       "log"
        "strings"
        "time"
 
        "git.curoverse.com/arvados.git/sdk/go/arvados"
+       log "github.com/Sirupsen/logrus"
 )
 
 type Config struct {
+       Debug  bool
        Listen string
 
+       LogFormat string
+
        PIDFile string
 
        MaxBuffers  int
@@ -32,14 +39,18 @@ type Config struct {
 
        blobSigningKey  []byte
        systemAuthToken string
+       debugLogf       func(string, ...interface{})
 }
 
 var theConfig = DefaultConfig()
 
+const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
+
 // DefaultConfig returns the default configuration.
 func DefaultConfig() *Config {
        return &Config{
                Listen:             ":25107",
+               LogFormat:          "json",
                MaxBuffers:         128,
                RequireSignatures:  true,
                BlobSignatureTTL:   arvados.Duration(14 * 24 * time.Hour),
@@ -52,6 +63,28 @@ func DefaultConfig() *Config {
 // Start should be called exactly once: after setting all public
 // fields, and before using the config.
 func (cfg *Config) Start() error {
+       if cfg.Debug {
+               log.SetLevel(log.DebugLevel)
+               cfg.debugLogf = log.Printf
+               cfg.debugLogf("debugging enabled")
+       } else {
+               cfg.debugLogf = func(string, ...interface{}) {}
+       }
+
+       switch strings.ToLower(cfg.LogFormat) {
+       case "text":
+               log.SetFormatter(&log.TextFormatter{
+                       FullTimestamp:   true,
+                       TimestampFormat: rfc3339NanoFixed,
+               })
+       case "json":
+               log.SetFormatter(&log.JSONFormatter{
+                       TimestampFormat: rfc3339NanoFixed,
+               })
+       default:
+               return fmt.Errorf(`unsupported log format %q (try "text" or "json")`, cfg.LogFormat)
+       }
+
        if cfg.MaxBuffers < 0 {
                return fmt.Errorf("MaxBuffers must be greater than zero")
        }