forked from kube-arbiter/arbiter
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
kube-arbiter#10 HPA - initial version for OBI metrics adapter
- Loading branch information
1 parent
1454296
commit 66539aa
Showing
137 changed files
with
30,457 additions
and
416 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| # Build the application | ||
| FROM golang:1.19 as builder | ||
|
|
||
| WORKDIR /go/src/github.com/kube-arbiter/arbiter | ||
| COPY . . | ||
|
|
||
| #RUN go get -d -v | ||
|
|
||
| RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o obi-metrics-adapter cmd/obi-adapter/main.go | ||
|
|
||
| # Run the application | ||
| FROM alpine:latest | ||
|
|
||
| # RUN apk --no-cache add ca-certificates | ||
|
|
||
| WORKDIR /root/ | ||
| COPY --from=builder /go/src/github.com/kube-arbiter/arbiter/obi-metrics-adapter . | ||
|
|
||
| ENTRYPOINT ["./obi-metrics-adapter"] |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| /* | ||
| Copyright 2022 The Arbiter 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 main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
|
|
||
| genericapiserver "k8s.io/apiserver/pkg/server" | ||
| "k8s.io/component-base/logs" | ||
| "k8s.io/klog/v2" | ||
|
|
||
| openapinamer "k8s.io/apiserver/pkg/endpoints/openapi" | ||
| customexternalmetrics "sigs.k8s.io/custom-metrics-apiserver/pkg/apiserver" | ||
| basecmd "sigs.k8s.io/custom-metrics-apiserver/pkg/cmd" | ||
| "sigs.k8s.io/custom-metrics-apiserver/pkg/provider" | ||
| "sigs.k8s.io/metrics-server/pkg/api" | ||
|
|
||
| emProvider "github.com/kube-arbiter/arbiter/pkg/adapter/provider" | ||
| generatedopenapi "github.com/kube-arbiter/arbiter/pkg/generated/api/generated/openapi" | ||
| "github.com/kube-arbiter/arbiter/pkg/generated/clientset/versioned" | ||
| ) | ||
|
|
||
| type ArbiterAdapter struct { | ||
| basecmd.AdapterBase | ||
|
|
||
| // AdapterConfigFile points to the file containing the arbiter configuration. | ||
| AdapterConfigFile string | ||
| /*// MetricsRelistInterval is the interval at which to relist the set of available metrics | ||
| MetricsRelistInterval time.Duration | ||
| // MetricsMaxAge is the period to query available metrics for | ||
| MetricsMaxAge time.Duration*/ | ||
| } | ||
|
|
||
| func (cmd *ArbiterAdapter) addFlags() { | ||
| cmd.Flags().StringVar(&cmd.AdapterConfigFile, "config", cmd.AdapterConfigFile, | ||
| "Configuration file containing details of how to transform between OBI metrics "+ | ||
| "and custom metrics API resources") | ||
| } | ||
|
|
||
| func (cmd *ArbiterAdapter) makeProvider(stopCh <-chan struct{}) (provider.ExternalMetricsProvider, error) { | ||
| mapper, err := cmd.RESTMapper() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to construct RESTMapper: %v", err) | ||
| } | ||
| // Kubernetes client | ||
| restConfig, err := cmd.ClientConfig() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to construct Kubernetes rest client: %v", err) | ||
| } | ||
| kubeClient, err := versioned.NewForConfig(restConfig) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to construct Kubernetes versioned client: %v", err) | ||
| } | ||
| // construct the provider and start it | ||
| emProvider := emProvider.NewArbiterProvider(mapper, kubeClient) | ||
| return emProvider, nil | ||
| } | ||
|
|
||
| func main() { | ||
| logs.InitLogs() | ||
| defer logs.FlushLogs() | ||
|
|
||
| // set up flags | ||
| cmd := &ArbiterAdapter{} | ||
| cmd.Name = "obi-metrics-adapter" | ||
|
|
||
| cmd.OpenAPIConfig = genericapiserver.DefaultOpenAPIConfig(generatedopenapi.GetOpenAPIDefinitions, openapinamer.NewDefinitionNamer(api.Scheme, customexternalmetrics.Scheme)) | ||
| cmd.OpenAPIConfig.Info.Title = "obi-metrics-adapter" | ||
| cmd.OpenAPIConfig.Info.Version = "0.2.0" | ||
|
|
||
| cmd.addFlags() | ||
| // make sure we get klog flags | ||
| local := flag.NewFlagSet(os.Args[0], flag.ExitOnError) | ||
| logs.AddGoFlags(local) | ||
| cmd.Flags().AddGoFlagSet(local) | ||
| if err := cmd.Flags().Parse(os.Args); err != nil { | ||
| klog.Fatalf("unable to parse flags: %v", err) | ||
| } | ||
|
|
||
| // stop channel closed on SIGTERM and SIGINT | ||
| stopCh := genericapiserver.SetupSignalHandler() | ||
|
|
||
| // construct the provider | ||
| emProvider, err := cmd.makeProvider(stopCh) | ||
| if err != nil { | ||
| klog.Fatalf("unable to construct custom metrics provider: %v", err) | ||
| } | ||
|
|
||
| // attach the provider to the server, if it's needed | ||
| if emProvider != nil { | ||
| cmd.WithExternalMetrics(emProvider) | ||
| } | ||
| // run the server | ||
| if err := cmd.Run(stopCh); err != nil { | ||
| klog.Fatalf("unable to run custom metrics adapter: %v", err) | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| apiVersion: autoscaling/v2beta1 | ||
| kind: HorizontalPodAutoscaler | ||
| metadata: | ||
| name: hpa-using-obi-adapter | ||
| spec: | ||
| scaleTargetRef: | ||
| apiVersion: apps/v1 | ||
| kind: Deployment | ||
| name: mem-cost | ||
| minReplicas: 1 | ||
| maxReplicas: 5 | ||
| metrics: | ||
| - type: External | ||
| external: | ||
| metricName: prometheus-pod-mem | ||
| metricSelector: {} | ||
| targetValue: 202042048 |
Oops, something went wrong.