impl.go

Documentation: github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/awschaos/ec2restart

     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 ec2restart
    17  
    18  import (
    19  	"context"
    20  	"encoding/json"
    21  
    22  	awscfg "github.com/aws/aws-sdk-go-v2/config"
    23  	"github.com/aws/aws-sdk-go-v2/credentials"
    24  	"github.com/aws/aws-sdk-go-v2/service/ec2"
    25  	"github.com/go-logr/logr"
    26  	v1 "k8s.io/api/core/v1"
    27  	"k8s.io/apimachinery/pkg/types"
    28  	"sigs.k8s.io/controller-runtime/pkg/client"
    29  
    30  	"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
    31  	impltypes "github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/types"
    32  )
    33  
    34  var _ impltypes.ChaosImpl = (*Impl)(nil)
    35  
    36  type Impl struct {
    37  	client.Client
    38  
    39  	Log logr.Logger
    40  }
    41  
    42  func (impl *Impl) Apply(ctx context.Context, index int, records []*v1alpha1.Record, obj v1alpha1.InnerObject) (v1alpha1.Phase, error) {
    43  	awschaos := obj.(*v1alpha1.AWSChaos)
    44  
    45  	var selected v1alpha1.AWSSelector
    46  	err := json.Unmarshal([]byte(records[index].Id), &selected)
    47  	if err != nil {
    48  		impl.Log.Error(err, "fail to unmarshal the selector")
    49  		return v1alpha1.NotInjected, err
    50  	}
    51  
    52  	opts := []func(*awscfg.LoadOptions) error{
    53  		awscfg.WithRegion(selected.AWSRegion),
    54  	}
    55  
    56  	if awschaos.Spec.SecretName != nil {
    57  		secret := &v1.Secret{}
    58  		err := impl.Client.Get(ctx, types.NamespacedName{
    59  			Name:      *awschaos.Spec.SecretName,
    60  			Namespace: awschaos.Namespace,
    61  		}, secret)
    62  		if err != nil {
    63  			impl.Log.Error(err, "fail to get cloud secret")
    64  			return v1alpha1.NotInjected, err
    65  		}
    66  		opts = append(opts, awscfg.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
    67  			string(secret.Data["aws_access_key_id"]),
    68  			string(secret.Data["aws_secret_access_key"]),
    69  			string(secret.Data["aws_session_token"]),
    70  		)))
    71  	}
    72  	cfg, err := awscfg.LoadDefaultConfig(ctx, opts...)
    73  	if err != nil {
    74  		impl.Log.Error(err, "unable to load aws SDK config")
    75  		return v1alpha1.NotInjected, err
    76  	}
    77  	ec2client := ec2.NewFromConfig(cfg)
    78  
    79  	_, err = ec2client.RebootInstances(context.TODO(), &ec2.RebootInstancesInput{
    80  		InstanceIds: []string{selected.Ec2Instance},
    81  	})
    82  
    83  	if err != nil {
    84  		impl.Log.Error(err, "fail to restart the instance")
    85  		return v1alpha1.NotInjected, err
    86  	}
    87  
    88  	return v1alpha1.Injected, nil
    89  }
    90  
    91  func (impl *Impl) Recover(_ context.Context, _ int, _ []*v1alpha1.Record, _ v1alpha1.InnerObject) (v1alpha1.Phase, error) {
    92  	return v1alpha1.NotInjected, nil
    93  }
    94  
    95  func NewImpl(c client.Client, log logr.Logger) *Impl {
    96  	return &Impl{
    97  		Client: c,
    98  		Log:    log.WithName("ec2restart"),
    99  	}
   100  }
   101