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Optionally mirror web logs to stdout

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This commit is contained in:
Arthur Barr
2021-01-06 13:52:46 +00:00
committed by Arthur J Barr
parent d2ea17ec30
commit 76070234d4
5 changed files with 68 additions and 27 deletions
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54
cmd/runmqserver/logging.go
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@@ -1,5 +1,5 @@
/*
© Copyright IBM Corporation 2017, 2020
© Copyright IBM Corporation 2017, 2021
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -79,6 +79,8 @@ func formatBasic(obj map[string]interface{}) string {
if len(inserts) > 0 {
return fmt.Sprintf("%s %s [%v]\n", obj["ibm_datetime"], obj["message"], strings.Join(inserts, ", "))
}
// Convert time zone information from some logs (e.g. Liberty) for consistency
obj["ibm_datetime"] = strings.Replace(obj["ibm_datetime"].(string), "+0000", "Z", 1)
return fmt.Sprintf("%s %s\n", obj["ibm_datetime"], obj["message"])
}
@@ -105,6 +107,11 @@ func mirrorHTPasswdLogs(ctx context.Context, wg *sync.WaitGroup, name string, fr
return mirrorLog(ctx, wg, "/var/mqm/errors/mqhtpass.json", false, mf, true)
}
// mirrorWebServerLogs starts a goroutine to mirror the contents of the Liberty web server messages.log
func mirrorWebServerLogs(ctx context.Context, wg *sync.WaitGroup, name string, fromStart bool, mf mirrorFunc) (chan error, error) {
return mirrorLog(ctx, wg, "/var/mqm/web/installations/Installation1/servers/mqweb/logs/messages.log", false, mf, true)
}
func getDebug() bool {
debug := os.Getenv("DEBUG")
if debug == "true" || debug == "1" {
@@ -124,14 +131,21 @@ func configureLogger(name string) (mirrorFunc, error) {
return nil, err
}
return func(msg string, isQMLog bool) bool {
obj, err := processLogMessage(msg)
if err == nil && isQMLog && filterQMLogMessage(obj) {
return false
}
if err != nil {
log.Printf("Failed to unmarshall JSON in log message - %v", msg)
// Check if the message is JSON
if len(msg) > 0 && msg[0] == '{' {
obj, err := processLogMessage(msg)
if err == nil && isQMLog && filterQMLogMessage(obj) {
return false
}
if err != nil {
log.Printf("Failed to unmarshall JSON in log message - %v", msg)
} else {
fmt.Println(msg)
}
} else {
fmt.Println(msg)
// The log being mirrored isn't JSON, so wrap it in a simple JSON message
// MQ error logs are usually JSON, but this is useful for Liberty logs - usually expect WLP_LOGGING_MESSAGE_FORMAT=JSON to be set when mirroring Liberty logs.
fmt.Printf("{\"message\":\"%s\"}\n", msg)
}
return true
}, nil
@@ -141,16 +155,22 @@ func configureLogger(name string) (mirrorFunc, error) {
return nil, err
}
return func(msg string, isQMLog bool) bool {
// Parse the JSON message, and print a simplified version
obj, err := processLogMessage(msg)
if err == nil && isQMLog && filterQMLogMessage(obj) {
return false
}
if err != nil {
log.Printf("Failed to unmarshall JSON in log message - %v", err)
// Check if the message is JSON
if len(msg) > 0 && msg[0] == '{' {
// Parse the JSON message, and print a simplified version
obj, err := processLogMessage(msg)
if err == nil && isQMLog && filterQMLogMessage(obj) {
return false
}
if err != nil {
log.Printf("Failed to unmarshall JSON in log message - %v", err)
} else {
fmt.Printf(formatBasic(obj))
}
} else {
fmt.Printf(formatBasic(obj))
// fmt.Printf(formatSimple(obj["ibm_datetime"].(string), obj["message"].(string)))
// The log being mirrored isn't JSON, so just print it.
// MQ error logs are usually JSON, but this is useful for Liberty logs - usually expect WLP_LOGGING_MESSAGE_FORMAT=JSON to be set when mirroring Liberty logs.
fmt.Println(msg)
}
return true
}, nil

12
cmd/runmqserver/main.go
View File

@@ -1,5 +1,5 @@
/*
© Copyright IBM Corporation 2017, 2020
© Copyright IBM Corporation 2017, 2021
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -195,6 +195,16 @@ func doMain() error {
return err
}
}
// Recommended to use this option in conjunction with setting WLP_LOGGING_MESSAGE_FORMAT=JSON
mirrorWebLog := os.Getenv("MQ_ENABLE_EMBEDDED_WEB_SERVER_LOG")
if mirrorWebLog == "true" || mirrorWebLog == "1" {
_, err = mirrorWebServerLogs(ctx, &wg, name, newQM, mf)
if err != nil {
logTermination(err)
return err
}
}
err = updateCommandLevel()
if err != nil {
logTermination(err)