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[New Template] vpc/vpc-flow-logs-s3 - Deliver VPC Flow Logs to S3 (wi…
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test/src/test/java/de/widdix/awscftemplates/vpc/TestVPCFlowLogsS3.java
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package de.widdix.awscftemplates.vpc; | ||
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import com.amazonaws.services.cloudformation.model.Parameter; | ||
import de.widdix.awscftemplates.ACloudFormationTest; | ||
import org.junit.Test; | ||
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public class TestVPCFlowLogsS3 extends ACloudFormationTest { | ||
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@Test | ||
public void test() { | ||
final String vpcStackName = "vpc-2azs-" + this.random8String(); | ||
final String flowLogsStackName = "vpc-flow-logs-s3-" + this.random8String(); | ||
final String classB = "10"; | ||
try { | ||
this.createStack(vpcStackName, | ||
"vpc/vpc-2azs.yaml", | ||
new Parameter().withParameterKey("ClassB").withParameterValue(classB) | ||
); | ||
try { | ||
this.createStack(flowLogsStackName, | ||
"vpc/vpc-flow-logs-s3.yaml", | ||
new Parameter().withParameterKey("ParentVPCStack").withParameterValue(vpcStackName) | ||
); | ||
// TODO how can we check if this stack works? | ||
} finally { | ||
this.deleteStack(flowLogsStackName); | ||
} | ||
} finally { | ||
this.deleteStack(vpcStackName); | ||
} | ||
} | ||
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} |
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--- | ||
# Copyright 2018 widdix GmbH | ||
# | ||
# 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. | ||
AWSTemplateFormatVersion: '2010-09-09' | ||
Description: 'VPC: Publish flow logs to S3, a cloudonaut.io template' | ||
Metadata: | ||
'AWS::CloudFormation::Interface': | ||
ParameterGroups: | ||
- Label: | ||
default: 'Parent Stacks' | ||
Parameters: | ||
- ParentVPCStack | ||
- Label: | ||
default: 'Flow Logs Parameters' | ||
Parameters: | ||
- ExternalLogBucket | ||
- LogFilePrefix | ||
- TrafficType | ||
Parameters: | ||
ParentVPCStack: | ||
Description: 'Stack name of parent VPC stack based on vpc/vpc-*azs.yaml template.' | ||
Type: String | ||
ExternalLogBucket: | ||
Description: 'Optional The name of an S3 bucket where you want to store flow logs. If you leave this empty, the Amazon S3 bucket is created for you.' | ||
Type: String | ||
Default: '' | ||
LogFilePrefix: | ||
Description: 'Optional The log file prefix.' | ||
Type: String | ||
Default: '' | ||
TrafficType: | ||
Description: 'The type of traffic to log.' | ||
Type: String | ||
Default: REJECT | ||
AllowedValues: | ||
- ACCEPT | ||
- REJECT | ||
- ALL | ||
Conditions: | ||
InternalBucket: !Equals [!Ref ExternalLogBucket, ''] | ||
ExternalBucket: !Not [!Equals [!Ref ExternalLogBucket, '']] | ||
HasLogFilePrefix: !Not [!Equals [!Ref LogFilePrefix, '']] | ||
Resources: | ||
LogBucket: | ||
Condition: InternalBucket | ||
Type: 'AWS::S3::Bucket' | ||
Properties: {} | ||
LogBucketPolicy: | ||
Condition: InternalBucket | ||
Type: 'AWS::S3::BucketPolicy' | ||
Properties: | ||
Bucket: !Ref LogBucket | ||
PolicyDocument: | ||
Version: '2012-10-17' | ||
Statement: # https://docs.aws.amazon.com/vpc/latest/userguide/flow-logs-s3.html#flow-logs-s3-permissions | ||
- Sid: AWSLogDeliveryWrite | ||
Effect: Allow | ||
Principal: | ||
Service: 'delivery.logs.amazonaws.com' | ||
Action: 's3:PutObject' | ||
Resource: !If [HasLogFilePrefix, !Sub '${LogBucket.Arn}/${LogFilePrefix}/AWSLogs/${AWS::AccountId}/*', !Sub '${LogBucket.Arn}/AWSLogs/${AWS::AccountId}/*'] | ||
Condition: | ||
StringEquals: | ||
's3:x-amz-acl': 'bucket-owner-full-control' | ||
- Sid: AWSLogDeliveryAclCheck | ||
Effect: Allow | ||
Principal: | ||
Service: 'delivery.logs.amazonaws.com' | ||
Action: 's3:GetBucketAcl' | ||
Resource: !GetAtt 'LogBucket.Arn' | ||
FlowLogInternalBucket: | ||
Condition: InternalBucket | ||
DependsOn: LogBucketPolicy | ||
Type: 'AWS::EC2::FlowLog' | ||
Properties: | ||
LogDestination: !If [HasLogFilePrefix, !Sub '${LogBucket.Arn}/${LogFilePrefix}/', !GetAtt 'LogBucket.Arn'] | ||
LogDestinationType: s3 | ||
ResourceId: {'Fn::ImportValue': !Sub '${ParentVPCStack}-VPC'} | ||
ResourceType: 'VPC' | ||
TrafficType: !Ref TrafficType | ||
FlowLogExternalBucket: | ||
Condition: ExternalBucket | ||
Type: 'AWS::EC2::FlowLog' | ||
Properties: | ||
LogDestination: !If [HasLogFilePrefix, !Sub 'arn:aws:s3:::${ExternalLogBucket}/${LogFilePrefix}/', !Sub 'arn:aws:s3:::${ExternalLogBucket}'] | ||
LogDestinationType: s3 | ||
ResourceId: {'Fn::ImportValue': !Sub '${ParentVPCStack}-VPC'} | ||
ResourceType: 'VPC' | ||
TrafficType: !Ref TrafficType | ||
Outputs: | ||
TemplateID: | ||
Description: 'cloudonaut.io template id.' | ||
Value: 'vpc/vpc-flow-logs-s3' | ||
TemplateVersion: | ||
Description: 'cloudonaut.io template version.' | ||
Value: '__VERSION__' | ||
StackName: | ||
Description: 'Stack name.' | ||
Value: !Sub '${AWS::StackName}' |