impl.go

Documentation: github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/awschaos/ec2stop

     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 ec2stop
    17  
    18  import (
    19  	"context"
    20  	"encoding/json"
    21  
    22  	"github.com/aws/aws-sdk-go-v2/aws"
    23  	awscfg "github.com/aws/aws-sdk-go-v2/config"
    24  	"github.com/aws/aws-sdk-go-v2/credentials"
    25  	"github.com/aws/aws-sdk-go-v2/service/ec2"
    26  	"github.com/go-logr/logr"
    27  	v1 "k8s.io/api/core/v1"
    28  	"k8s.io/apimachinery/pkg/types"
    29  	"sigs.k8s.io/controller-runtime/pkg/client"
    30  
    31  	"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
    32  	impltypes "github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/types"
    33  )
    34  
    35  var _ impltypes.ChaosImpl = (*Impl)(nil)
    36  
    37  type Impl struct {
    38  	client.Client
    39  
    40  	Log logr.Logger
    41  }
    42  
    43  func (impl *Impl) Apply(ctx context.Context, index int, records []*v1alpha1.Record, obj v1alpha1.InnerObject) (v1alpha1.Phase, error) {
    44  	awschaos := obj.(*v1alpha1.AWSChaos)
    45  
    46  	var selected v1alpha1.AWSSelector
    47  	json.Unmarshal([]byte(records[index].Id), &selected)
    48  
    49  	opts := []func(*awscfg.LoadOptions) error{
    50  		awscfg.WithRegion(selected.AWSRegion),
    51  	}
    52  
    53  	if selected.Endpoint != nil {
    54  		opts = append(opts, awscfg.WithEndpointResolver(aws.EndpointResolverFunc(func(service, region string) (aws.Endpoint, error) {
    55  			return aws.Endpoint{URL: *selected.Endpoint, SigningRegion: region}, nil
    56  		})))
    57  	}
    58  
    59  	if awschaos.Spec.SecretName != nil {
    60  		secret := &v1.Secret{}
    61  		err := impl.Client.Get(ctx, types.NamespacedName{
    62  			Name:      *awschaos.Spec.SecretName,
    63  			Namespace: awschaos.Namespace,
    64  		}, secret)
    65  		if err != nil {
    66  			impl.Log.Error(err, "fail to get cloud secret")
    67  			return v1alpha1.NotInjected, err
    68  		}
    69  		opts = append(opts, awscfg.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
    70  			string(secret.Data["aws_access_key_id"]),
    71  			string(secret.Data["aws_secret_access_key"]),
    72  			"",
    73  		)))
    74  	}
    75  	cfg, err := awscfg.LoadDefaultConfig(ctx, opts...)
    76  	if err != nil {
    77  		impl.Log.Error(err, "unable to load aws SDK config")
    78  		return v1alpha1.NotInjected, err
    79  	}
    80  	ec2client := ec2.NewFromConfig(cfg)
    81  
    82  	_, err = ec2client.StopInstances(context.TODO(), &ec2.StopInstancesInput{
    83  		InstanceIds: []string{selected.Ec2Instance},
    84  	})
    85  
    86  	if err != nil {
    87  		return v1alpha1.NotInjected, err
    88  	}
    89  
    90  	return v1alpha1.Injected, nil
    91  }
    92  
    93  func (impl *Impl) Recover(ctx context.Context, index int, records []*v1alpha1.Record, obj v1alpha1.InnerObject) (v1alpha1.Phase, error) {
    94  	awschaos := obj.(*v1alpha1.AWSChaos)
    95  
    96  	var selected v1alpha1.AWSSelector
    97  	json.Unmarshal([]byte(records[index].Id), &selected)
    98  
    99  	opts := []func(*awscfg.LoadOptions) error{
   100  		awscfg.WithRegion(selected.AWSRegion),
   101  	}
   102  
   103  	if selected.Endpoint != nil {
   104  		opts = append(opts, awscfg.WithEndpointResolver(aws.EndpointResolverFunc(func(service, region string) (aws.Endpoint, error) {
   105  			return aws.Endpoint{URL: *selected.Endpoint, SigningRegion: region}, nil
   106  		})))
   107  	}
   108  	if awschaos.Spec.SecretName != nil {
   109  		secret := &v1.Secret{}
   110  		err := impl.Client.Get(ctx, types.NamespacedName{
   111  			Name:      *awschaos.Spec.SecretName,
   112  			Namespace: awschaos.Namespace,
   113  		}, secret)
   114  		if err != nil {
   115  			impl.Log.Error(err, "fail to get cloud secret")
   116  			return v1alpha1.Injected, err
   117  		}
   118  		opts = append(opts, awscfg.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
   119  			string(secret.Data["aws_access_key_id"]),
   120  			string(secret.Data["aws_secret_access_key"]),
   121  			"",
   122  		)))
   123  	}
   124  	cfg, err := awscfg.LoadDefaultConfig(ctx, opts...)
   125  	if err != nil {
   126  		impl.Log.Error(err, "unable to load aws SDK config")
   127  		return v1alpha1.Injected, err
   128  	}
   129  	ec2client := ec2.NewFromConfig(cfg)
   130  
   131  	_, err = ec2client.StartInstances(context.TODO(), &ec2.StartInstancesInput{
   132  		InstanceIds: []string{selected.Ec2Instance},
   133  	})
   134  
   135  	if err != nil {
   136  		impl.Log.Error(err, "fail to start the instance")
   137  		return v1alpha1.Injected, err
   138  	}
   139  
   140  	return v1alpha1.NotInjected, nil
   141  }
   142  
   143  func NewImpl(c client.Client, log logr.Logger) *Impl {
   144  	return &Impl{
   145  		Client: c,
   146  		Log:    log.WithName("ec2stop"),
   147  	}
   148  }
   149