137 lines
3.5 KiB
Go
137 lines
3.5 KiB
Go
/*
|
|
© Copyright IBM Corporation 2017, 2018
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"sync"
|
|
|
|
"github.com/ibm-messaging/mq-container/internal/mqini"
|
|
"github.com/sirupsen/logrus"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
var debug = false
|
|
|
|
// timestampFormat matches the format used by MQ messages (includes milliseconds)
|
|
const timestampFormat string = "2006-01-02T15:04:05.000Z07:00"
|
|
|
|
type simpleTextFormatter struct {
|
|
}
|
|
|
|
func (f *simpleTextFormatter) Format(entry *logrus.Entry) ([]byte, error) {
|
|
// If debugging, and a prefix, but only for this formatter.
|
|
if entry.Level == logrus.DebugLevel {
|
|
entry.Message = "DEBUG: " + entry.Message
|
|
}
|
|
// Use a simple format, with a timestamp
|
|
return []byte(formatSimple(entry.Time.Format(timestampFormat), entry.Message)), nil
|
|
}
|
|
|
|
func logDebug(args ...interface{}) {
|
|
if debug {
|
|
log.Debug(args)
|
|
}
|
|
}
|
|
|
|
func logDebugf(format string, args ...interface{}) {
|
|
if debug {
|
|
log.Debugf(format, args...)
|
|
}
|
|
}
|
|
|
|
func logTerminationf(format string, args ...interface{}) {
|
|
logTermination(fmt.Sprintf(format, args))
|
|
}
|
|
|
|
func logTermination(args ...interface{}) {
|
|
msg := fmt.Sprint(args)
|
|
// Write the message to the termination log. This is the default place
|
|
// that Kubernetes will look for termination information.
|
|
log.Debugf("Writing termination message: %v", msg)
|
|
err := ioutil.WriteFile("/dev/termination-log", []byte(msg), 0660)
|
|
if err != nil {
|
|
log.Debug(err)
|
|
}
|
|
log.Error(msg)
|
|
}
|
|
|
|
func jsonLogs() bool {
|
|
e := os.Getenv("MQ_ALPHA_JSON_LOGS")
|
|
if e == "true" || e == "1" {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func mirrorToStdout(msg string) {
|
|
fmt.Println(msg)
|
|
}
|
|
|
|
func formatSimple(datetime string, message string) string {
|
|
return fmt.Sprintf("%v %v\n", datetime, message)
|
|
}
|
|
|
|
func mirrorLogs(ctx context.Context, wg *sync.WaitGroup, name string, fromStart bool) (chan error, error) {
|
|
// Always use the JSON log as the source
|
|
// Put the queue manager name in quotes to handle cases like name=..
|
|
qm, err := mqini.GetQueueManager(name)
|
|
if err != nil {
|
|
logDebug(err)
|
|
return nil, err
|
|
}
|
|
f := filepath.Join(mqini.GetErrorLogDirectory(qm), "AMQERR01.json")
|
|
if jsonLogs() {
|
|
return mirrorLog(ctx, wg, f, fromStart, mirrorToStdout)
|
|
}
|
|
return mirrorLog(ctx, wg, f, fromStart, func(msg string) {
|
|
// Parse the JSON message, and print a simplified version
|
|
var obj map[string]interface{}
|
|
json.Unmarshal([]byte(msg), &obj)
|
|
fmt.Printf(formatSimple(obj["ibm_datetime"].(string), obj["message"].(string)))
|
|
})
|
|
}
|
|
|
|
func configureDebugLogger() {
|
|
debugEnv, ok := os.LookupEnv("DEBUG")
|
|
if ok && (debugEnv == "true" || debugEnv == "1") {
|
|
debug = true
|
|
logrus.SetLevel(logrus.DebugLevel)
|
|
logDebug("Debug mode enabled")
|
|
}
|
|
}
|
|
|
|
func configureLogger() {
|
|
if jsonLogs() {
|
|
formatter := logrus.JSONFormatter{
|
|
FieldMap: logrus.FieldMap{
|
|
logrus.FieldKeyMsg: "message",
|
|
logrus.FieldKeyLevel: "ibm_level",
|
|
logrus.FieldKeyTime: "ibm_datetime",
|
|
},
|
|
TimestampFormat: timestampFormat,
|
|
}
|
|
logrus.SetFormatter(&formatter)
|
|
} else {
|
|
log.SetFormatter(new(simpleTextFormatter))
|
|
}
|
|
}
|