workflow_collector.go

Documentation: github.com/chaos-mesh/chaos-mesh/pkg/dashboard/collector

     1  // Copyright 2021 Chaos Mesh Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  
    16  package collector
    17  
    18  import (
    19  	"context"
    20  
    21  	"github.com/go-logr/logr"
    22  	"github.com/jinzhu/gorm"
    23  	apierrors "k8s.io/apimachinery/pkg/api/errors"
    24  	"k8s.io/apimachinery/pkg/runtime"
    25  	ctrl "sigs.k8s.io/controller-runtime"
    26  	"sigs.k8s.io/controller-runtime/pkg/client"
    27  	"sigs.k8s.io/controller-runtime/pkg/reconcile"
    28  
    29  	"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
    30  	"github.com/chaos-mesh/chaos-mesh/pkg/dashboard/core"
    31  )
    32  
    33  type WorkflowCollector struct {
    34  	kubeClient client.Client
    35  	Log        logr.Logger
    36  	apiType    runtime.Object
    37  	store      core.WorkflowStore
    38  }
    39  
    40  func (it *WorkflowCollector) Setup(mgr ctrl.Manager, apiType client.Object) error {
    41  	it.apiType = apiType
    42  
    43  	return ctrl.NewControllerManagedBy(mgr).
    44  		For(apiType).
    45  		Complete(it)
    46  }
    47  
    48  func (it *WorkflowCollector) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
    49  	if it.apiType == nil {
    50  		it.Log.Error(nil, "apiType has not been initialized")
    51  		return ctrl.Result{}, nil
    52  	}
    53  	workflow := v1alpha1.Workflow{}
    54  	err := it.kubeClient.Get(ctx, request.NamespacedName, &workflow)
    55  	if apierrors.IsNotFound(err) {
    56  		// target
    57  		if err = it.markAsArchived(ctx, request.Namespace, request.Name); err != nil {
    58  			it.Log.Error(err, "failed to archive experiment")
    59  		}
    60  		return ctrl.Result{}, nil
    61  	}
    62  	if err != nil {
    63  		it.Log.Error(err, "failed to get workflow object", "request", request.NamespacedName)
    64  		return ctrl.Result{}, nil
    65  	}
    66  
    67  	if err := it.persistentWorkflow(&workflow); err != nil {
    68  		it.Log.Error(err, "failed to archive workflow")
    69  	}
    70  
    71  	return ctrl.Result{}, nil
    72  }
    73  
    74  func (it *WorkflowCollector) markAsArchived(ctx context.Context, namespace, name string) error {
    75  	return it.store.MarkAsArchived(ctx, namespace, name)
    76  }
    77  
    78  func (it *WorkflowCollector) persistentWorkflow(workflow *v1alpha1.Workflow) error {
    79  	newEntity, err := core.WorkflowCR2WorkflowEntity(workflow)
    80  	if err != nil {
    81  		return err
    82  	}
    83  
    84  	existedEntity, err := it.store.FindByUID(context.Background(), string(workflow.UID))
    85  	if err != nil && !gorm.IsRecordNotFoundError(err) {
    86  		it.Log.Error(err, "failed to find workflow", "UID", workflow.UID)
    87  		return err
    88  	}
    89  
    90  	if existedEntity != nil {
    91  		newEntity.ID = existedEntity.ID
    92  	}
    93  
    94  	err = it.store.Save(context.Background(), newEntity)
    95  	if err != nil {
    96  		it.Log.Error(err, "failed to update workflow", "archive", newEntity)
    97  	}
    98  	return err
    99  }
   100