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Syslog integration (#1952)

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* Syslog integration, part 1

* Add protocol, make sure syslog actually logs

* Make golangci-lint happy about shadow variables

* Add syslog tag, wrap syslog in logLevelHook
This commit is contained in:
Sambhav Saggi 2021-08-17 11:18:51 -04:00 committed by GitHub
parent ff21675c5b
commit 1bee1ae204
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1 changed files with 33 additions and 0 deletions
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33
internal/log.go
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@ -18,6 +18,7 @@ import (
"context"
"fmt"
"io"
"log/syslog"
"net/http"
"os"
"path"
@ -30,6 +31,7 @@ import (
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dugong"
"github.com/sirupsen/logrus"
lSyslog "github.com/sirupsen/logrus/hooks/syslog"
)
type utcFormatter struct {
@ -128,6 +130,9 @@ func SetupHookLogging(hooks []config.LogrusHook, componentName string) {
case "file":
checkFileHookParams(hook.Params)
setupFileHook(hook, level, componentName)
case "syslog":
checkSyslogHookParams(hook.Params)
setupSyslogHook(hook, level, componentName)
default:
logrus.Fatalf("Unrecognised logging hook type: %s", hook.Type)
}
@ -173,6 +178,34 @@ func setupFileHook(hook config.LogrusHook, level logrus.Level, componentName str
})
}
func checkSyslogHookParams(params map[string]interface{}) {
addr, ok := params["address"]
if !ok {
logrus.Fatalf("Expecting a parameter \"address\" for logging hook of type \"syslog\"")
}
if _, ok := addr.(string); !ok {
logrus.Fatalf("Parameter \"address\" for logging hook of type \"syslog\" should be a string")
}
proto, ok2 := params["protocol"]
if !ok2 {
logrus.Fatalf("Expecting a parameter \"protocol\" for logging hook of type \"syslog\"")
}
if _, ok2 := proto.(string); !ok2 {
logrus.Fatalf("Parameter \"protocol\" for logging hook of type \"syslog\" should be a string")
}
}
func setupSyslogHook(hook config.LogrusHook, level logrus.Level, componentName string) {
syslogHook, err := lSyslog.NewSyslogHook(hook.Params["protocol"].(string), hook.Params["address"].(string), syslog.LOG_INFO, componentName)
if err == nil {
logrus.AddHook(&logLevelHook{level, syslogHook})
}
}
//CloseAndLogIfError Closes io.Closer and logs the error if any
func CloseAndLogIfError(ctx context.Context, closer io.Closer, message string) {
if closer == nil {