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Addition of Patch Job Type (kube-burner#149)
* Created patch job type * Added useful patch examples * Added job iteration to Patch * Revert addition of new line * Removed debug print
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7 changes: 7 additions & 0 deletions
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examples/workloads/api-intensive/templates/deployment_patch_add_label.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| [ | ||
| { | ||
| "op": "add", | ||
| "path": "/metadata/labels/new_key", | ||
| "value": "new_value" | ||
| } | ||
| ] |
5 changes: 5 additions & 0 deletions
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examples/workloads/api-intensive/templates/deployment_patch_add_label.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| kind: Deployment | ||
| apiVersion: apps/v1 | ||
| metadata: | ||
| labels: | ||
| new_key_{{.Iteration}}: new_value_{{.Iteration}} |
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12
examples/workloads/api-intensive/templates/deployment_patch_add_pod_2.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| kind: Deployment | ||
| apiVersion: apps/v1 | ||
| spec: | ||
| template: | ||
| spec: | ||
| containers: | ||
| - image: k8s.gcr.io/pause:3.1 | ||
| name: api-intensive-2 | ||
| resources: | ||
| requests: | ||
| cpu: 10m | ||
| memory: 10M |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| // Copyright 2022 The Kube-burner 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 burner | ||
|
|
||
| import ( | ||
| "context" | ||
| "io" | ||
| "io/ioutil" | ||
| "strings" | ||
| "sync" | ||
|
|
||
| "github.com/cloud-bulldozer/kube-burner/log" | ||
| "github.com/cloud-bulldozer/kube-burner/pkg/config" | ||
| "github.com/cloud-bulldozer/kube-burner/pkg/util" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/api/meta" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| "k8s.io/apimachinery/pkg/labels" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/client-go/dynamic" | ||
| ) | ||
|
|
||
| func setupPatchJob(jobConfig config.Job) Executor { | ||
| var f io.Reader | ||
| var err error | ||
| log.Infof("Preparing patch job: %s", jobConfig.Name) | ||
| var ex Executor | ||
| for _, o := range jobConfig.Objects { | ||
| if o.APIVersion == "" { | ||
| o.APIVersion = "v1" | ||
| } | ||
| log.Debugf("Processing template: %s", o.ObjectTemplate) | ||
| f, err = util.ReadConfig(o.ObjectTemplate) | ||
| if err != nil { | ||
| log.Fatalf("Error reading template %s: %s", o.ObjectTemplate, err) | ||
| } | ||
| t, err := ioutil.ReadAll(f) | ||
| if err != nil { | ||
| log.Fatalf("Error reading template %s: %s", o.ObjectTemplate, err) | ||
| } | ||
|
|
||
| // Unlike create, we don't want to create the gvk with the entire template, | ||
| // because it would try to use the properties of the patch data to find | ||
| // the objects to patch. | ||
| gvk := schema.FromAPIVersionAndKind(o.APIVersion, o.Kind) | ||
| gvr, _ := meta.UnsafeGuessKindToResource(gvk) | ||
| if len(o.LabelSelector) == 0 { | ||
| log.Fatalf("Empty labelSelectors not allowed with: %s", o.Kind) | ||
| } | ||
| if len(o.PatchType) == 0 { | ||
| log.Fatalln("Empty Patch Type not allowed") | ||
| } | ||
| obj := object{ | ||
| gvr: gvr, | ||
| objectSpec: t, | ||
| objectTemplate: o.ObjectTemplate, | ||
| inputVars: o.InputVars, | ||
| labelSelector: o.LabelSelector, | ||
| patchType: o.PatchType, | ||
| } | ||
| log.Infof("Job %s: Patch %s with selector %s", jobConfig.Name, gvk.Kind, labels.Set(obj.labelSelector)) | ||
| ex.objects = append(ex.objects, obj) | ||
| } | ||
| return ex | ||
| } | ||
|
|
||
| // RunPatchJob executes a patch job | ||
| func (ex *Executor) RunPatchJob() { | ||
| var itemList *unstructured.UnstructuredList | ||
| _, RestConfig, err := config.GetClientSet(ex.Config.QPS, ex.Config.Burst) | ||
| if err != nil { | ||
| log.Fatalf("Error creating restConfig for kube-burner: %s", err) | ||
| } | ||
| dynamicClient, err = dynamic.NewForConfig(RestConfig) | ||
| if err != nil { | ||
| log.Fatalf("Error creating DynamicClient: %s", err) | ||
| } | ||
|
|
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| log.Infof("Running patch job %s", ex.Config.Name) | ||
| var wg sync.WaitGroup | ||
| for _, obj := range ex.objects { | ||
|
|
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| labelSelector := labels.Set(obj.labelSelector).String() | ||
| listOptions := metav1.ListOptions{ | ||
| LabelSelector: labelSelector, | ||
| } | ||
|
|
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| // Try to find the list of resources by GroupVersionResource. | ||
| err = RetryWithExponentialBackOff(func() (done bool, err error) { | ||
| itemList, err = dynamicClient.Resource(obj.gvr).List(context.TODO(), listOptions) | ||
| if err != nil { | ||
| log.Errorf("Error found listing %s labeled with %s: %s", obj.gvr.Resource, labelSelector, err) | ||
| return false, nil | ||
| } | ||
| return true, nil | ||
| }) | ||
| if err != nil { | ||
| continue | ||
| } | ||
| log.Infof("Found %d %s with selector %s; patching them", len(itemList.Items), obj.gvr.Resource, labelSelector) | ||
| for i := 1; i <= ex.Config.JobIterations; i++ { | ||
| for _, item := range itemList.Items { | ||
| wg.Add(1) | ||
| go ex.patchHandler(obj, item, i, &wg) | ||
| } | ||
| } | ||
| } | ||
| wg.Wait() | ||
| } | ||
|
|
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| func (ex *Executor) patchHandler(obj object, originalItem unstructured.Unstructured, | ||
| iteration int, wg *sync.WaitGroup) { | ||
|
|
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| defer wg.Done() | ||
|
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| // There are several patch modes. Three of them are client-side, and one | ||
| // of them is server-side. | ||
| var data []byte | ||
| patchOptions := metav1.PatchOptions{} | ||
|
|
||
| if strings.HasSuffix(obj.objectTemplate, "json") { | ||
| if obj.patchType == string(types.ApplyPatchType) { | ||
| log.Fatalf("Apply patch type requires YAML") | ||
| } | ||
| data = obj.objectSpec | ||
| } else { | ||
| // Processing template | ||
| templateData := map[string]interface{}{ | ||
| jobName: ex.Config.Name, | ||
| jobIteration: iteration, | ||
| jobUUID: ex.uuid, | ||
| } | ||
| for k, v := range obj.inputVars { | ||
| templateData[k] = v | ||
| } | ||
| renderedObj, err := util.RenderTemplate(obj.objectSpec, templateData, util.MissingKeyError) | ||
| if err != nil { | ||
| log.Fatalf("Template error in %s: %s", obj.objectTemplate, err) | ||
| } | ||
|
|
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| // Converting to JSON if patch type is not Apply | ||
| if obj.patchType == string(types.ApplyPatchType) { | ||
| data = renderedObj | ||
| patchOptions.FieldManager = "kube-controller-manager" | ||
| } else { | ||
| newObject := &unstructured.Unstructured{} | ||
| yamlToUnstructured(renderedObj, newObject) | ||
| data, err = newObject.MarshalJSON() | ||
| if err != nil { | ||
| log.Errorf("Error converting patch to JSON") | ||
| } | ||
| } | ||
| } | ||
|
|
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| log.Debugf("Patching %s/%s in namespace %s", originalItem.GetKind(), | ||
| originalItem.GetName(), originalItem.GetNamespace()) | ||
| ex.limiter.Wait(context.TODO()) | ||
|
|
||
| uns, err := dynamicClient.Resource(obj.gvr).Namespace(originalItem.GetNamespace()). | ||
| Patch(context.TODO(), originalItem.GetName(), | ||
| types.PatchType(obj.patchType), data, patchOptions) | ||
| if err != nil { | ||
| if errors.IsForbidden(err) { | ||
| log.Fatalf("Authorization error patching %s/%s: %s", originalItem.GetKind(), originalItem.GetName(), err) | ||
| } else if err != nil { | ||
| log.Errorf("Error patching object %s/%s in namespace %s: %s", originalItem.GetKind(), | ||
| originalItem.GetName(), originalItem.GetNamespace(), err) | ||
| } | ||
| } else { | ||
| ns := originalItem.GetNamespace() | ||
| log.Debugf("Patched %s/%s in namespace %s", uns.GetKind(), uns.GetName(), ns) | ||
| } | ||
|
|
||
| } |
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