replicated-bucket-kms-encrypted/template.yml at master · lambda-my-aws/replicated-bucket-kms-encrypted · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
Conditions:
  IsDestinationRegion: !Equals
    - !Ref 'ReplicaRegion'
    - !Ref 'AWS::Region'
  IsSourceRegion: !Equals
    - !Ref 'SourceRegion'
    - !Ref 'AWS::Region'
Description: Template to create Replicated Bucket
Metadata:
  Author: https://github.com/johnpreston
  Date: '2019-06-26T13:28:56.466145'
Outputs:
  RoleArn:
    Value: !If
      - IsSourceRegion
      - !GetAtt 'ReplicationRole.Arn'
      - NoWhatWeNeedHere
Parameters:
  BucketName:
    AllowedPattern: '[a-z0-9-]+'
    Type: String
  ReplicaRegion:
    AllowedValues:
      - eu-north-1
      - ap-south-1
      - eu-west-3
      - eu-west-2
      - eu-west-1
      - ap-northeast-2
      - ap-northeast-1
      - sa-east-1
      - ca-central-1
      - ap-southeast-1
      - ap-southeast-2
      - eu-central-1
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
    Type: String
  SourceRegion:
    AllowedValues:
      - eu-north-1
      - ap-south-1
      - eu-west-3
      - eu-west-2
      - eu-west-1
      - ap-northeast-2
      - ap-northeast-1
      - sa-east-1
      - ca-central-1
      - ap-southeast-1
      - ap-southeast-2
      - eu-central-1
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
    Type: String
Resources:
  BucketEncryptionKey:
    Properties:
      KeyPolicy:
        Statement:
          - Action:
              - kms:*
            Effect: Allow
            Principal:
              AWS:
                - !Sub 'arn:aws:iam::${AWS::AccountId}:root'
            Resource:
              - '*'
            Sid: Allow administration of the key
        Version: '2012-10-17'
    Type: AWS::KMS::Key
  BucketEncryptionKeyAlias:
    Properties:
      AliasName: !Sub 'alias/${AWS::Region}/${BucketName}'
      TargetKeyId: !GetAtt 'BucketEncryptionKey.Arn'
    Type: AWS::KMS::Alias
  ReplicaBucketPolicy:
    Condition: IsDestinationRegion
    Properties:
      Bucket: !Ref 'ReplicatedBucket'
      PolicyDocument:
        Id: S3ReplicationPolicy
        Statement:
          - Action:
              - s3:GetBucketVersioning
              - s3:PutBucketVersioning
              - s3:ReplicateObject
              - s3:ReplicateDelete
            Effect: Allow
            Principal:
              AWS: !Sub 'arn:aws:iam::${AWS::AccountId}:root'
            Resource:
              - !Sub 'arn:aws:s3:::${ReplicatedBucket}'
              - !Sub 'arn:aws:s3:::${ReplicatedBucket}/*'
            Sid: S3ReplicationPolicy
        Version: '2008-10-17'
    Type: AWS::S3::BucketPolicy
  ReplicatedBucket:
    DependsOn:
      - BucketEncryptionKey
      - BucketEncryptionKeyAlias
    Properties:
      BucketEncryption:
        ServerSideEncryptionConfiguration:
          - ServerSideEncryptionByDefault:
              KMSMasterKeyID: !Ref 'BucketEncryptionKey'
              SSEAlgorithm: aws:kms
      BucketName: !Sub '${BucketName}-${AWS::Region}'
      LifecycleConfiguration:
        Rules:
          - AbortIncompleteMultipartUpload:
              DaysAfterInitiation: 3
            NoncurrentVersionExpirationInDays: 1
            Status: Enabled
            Transitions:
              - StorageClass: GLACIER
                TransitionInDays: !If
                  - IsSourceRegion
                  - 31
                  - 14
      ReplicationConfiguration: !If
        - IsSourceRegion
        - Role: !GetAtt 'ReplicationRole.Arn'
          Rules:
            - Destination:
                Bucket: !Sub 'arn:${AWS::Partition}:s3:::${BucketName}-${ReplicaRegion}'
                EncryptionConfiguration:
                  ReplicaKmsKeyID:
                    Fn::Transform:
                      - Name: cfnmacro-kmskey
                        Parameters:
                          KeyRegion: !Ref ReplicaRegion
                          KeyAlias: !Sub 'alias/${ReplicaRegion}/${BucketName}'
              Prefix: ''
              SourceSelectionCriteria:
                SseKmsEncryptedObjects:
                  Status: Enabled
              Status: Enabled
        - !Ref 'AWS::NoValue'
      VersioningConfiguration:
        Status: Enabled
    Type: AWS::S3::Bucket
  ReplicationRole:
    Condition: IsSourceRegion
    Properties:
      AssumeRolePolicyDocument:
        Statement:
          - Action:
              - sts:AssumeRole
            Effect: Allow
            Principal:
              Service:
                - !Sub 's3.${AWS::URLSuffix}'
        Version: '2012-10-17'
      Policies:
        - PolicyDocument:
            Statement:
              - Action:
                  - kms:Decrypt
                Condition:
                  StringLike:
                    kms:ViaService: !Sub 's3.${SourceRegion}.${AWS::URLSuffix}'
                Effect: Allow
                Resource:
                  - !GetAtt 'BucketEncryptionKey.Arn'
              - Action:
                  - kms:Encrypt
                Condition:
                  StringLike:
                    kms:ViaService: !Sub 's3.${ReplicaRegion}.${AWS::URLSuffix}'
                Effect: Allow
                Resource:
                  - Fn::Transform:
                      - Name: cfnmacro-kmskey
                        Parameters:
                          KeyRegion: !Ref ReplicaRegion
                          KeyAlias: !Sub 'alias/${ReplicaRegion}/${BucketName}'
            Version: '2012-10-17'
          PolicyName: !Sub 'KMSAccess'
        - PolicyDocument:
            Statement:
              - Action:
                  - s3:ListBucket
                  - s3:GetReplicationConfiguration
                  - s3:GetObjectVersionForReplication
                  - s3:GetObjectVersionAcl
                  - s3:GetObjectVersionTagging
                Effect: Allow
                Resource:
                  - !Sub 'arn:${AWS::Partition}:s3:::${BucketName}-${SourceRegion}'
                  - !Sub 'arn:${AWS::Partition}:s3:::${BucketName}-${SourceRegion}/*'
              - Action:
                  - s3:ReplicateObject
                  - s3:ReplicateDelete
                  - s3:ReplicateTags
                  - s3:GetObjectVersionTagging
                Effect: Allow
                Resource:
                  - !Sub 'arn:${AWS::Partition}:s3:::${BucketName}-${ReplicaRegion}'
                  - !Sub 'arn:${AWS::Partition}:s3:::${BucketName}-${ReplicaRegion}/*'
            Version: '2012-10-17'
          PolicyName: S3ReplicationAccess
    Type: AWS::IAM::Role