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fix: ensure consistent JSON log format for automaxprocs (kedacore#6335)
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* fix: ensure consistent JSON log format for automaxprocs

Signed-off-by: Omer Aplatony <[email protected]>

* moved to Unreleased

Signed-off-by: Omer Aplatony <[email protected]>

---------

Signed-off-by: Omer Aplatony <[email protected]>
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omerap12 authored and robpickerill committed Nov 30, 2024
1 parent 3fda9cc commit d12dba9
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Showing 5 changed files with 54 additions and 3 deletions.
1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,7 @@ Here is an overview of all new **experimental** features:

### Fixes

- **General**: Centralize and improve automaxprocs configuration with proper structured logging ([#5970](https://github.com/kedacore/keda/issues/5970))
- **General**: Paused ScaledObject count is reported correctly after operator restart ([#6321](https://github.com/kedacore/keda/issues/6321))

### Deprecations
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7 changes: 6 additions & 1 deletion cmd/adapter/main.go
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,6 @@ import (
grpcprom "github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/collectors"
_ "go.uber.org/automaxprocs"
appsv1 "k8s.io/api/apps/v1"
apimetrics "k8s.io/apiserver/pkg/endpoints/metrics"
"k8s.io/client-go/kubernetes/scheme"
Expand Down Expand Up @@ -257,6 +256,12 @@ func main() {
return
}

err = kedautil.ConfigureMaxProcs(logger)
if err != nil {
logger.Error(err, "failed to set max procs")
return
}

kedaProvider, err := cmd.makeProvider(ctx)
if err != nil {
logger.Error(err, "making provider")
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8 changes: 7 additions & 1 deletion cmd/operator/main.go
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ import (
"time"

"github.com/spf13/pflag"
_ "go.uber.org/automaxprocs"
apimachineryruntime "k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
kubeinformers "k8s.io/client-go/informers"
Expand Down Expand Up @@ -115,6 +114,13 @@ func main() {

ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
ctx := ctrl.SetupSignalHandler()

err := kedautil.ConfigureMaxProcs(setupLog)
if err != nil {
setupLog.Error(err, "failed to set max procs")
os.Exit(1)
}

namespaces, err := kedautil.GetWatchNamespaces()
if err != nil {
setupLog.Error(err, "failed to get watch namespace")
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7 changes: 6 additions & 1 deletion cmd/webhooks/main.go
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ import (
"os"

"github.com/spf13/pflag"
_ "go.uber.org/automaxprocs"
apimachineryruntime "k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
Expand Down Expand Up @@ -80,6 +79,12 @@ func main() {

ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))

err := kedautil.ConfigureMaxProcs(setupLog)
if err != nil {
setupLog.Error(err, "failed to set max procs")
os.Exit(1)
}

ctx := ctrl.SetupSignalHandler()

cfg := ctrl.GetConfigOrDie()
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34 changes: 34 additions & 0 deletions pkg/util/maxprocs.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
/*
Copyright 2024 The KEDA Authors
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 util

import (
"fmt"

"go.uber.org/automaxprocs/maxprocs"
"k8s.io/klog/v2"
)

// ConfigureMaxProcs sets up automaxprocs with proper logging configuration.
// It wraps the automaxprocs logger to handle structured logging with string keys
// to prevent panics when automaxprocs tries to pass numeric keys.
func ConfigureMaxProcs(logger klog.Logger) error {
_, err := maxprocs.Set(maxprocs.Logger(func(format string, args ...interface{}) {
logger.Info(fmt.Sprintf(format, args...))
}))
return err
}

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