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fix: open gremlin lambda to outbound DNS resolution access in vpc cid… #555

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fix: open gremlin lambda to outbound DNS resolution access in vpc cid… #555

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8 changes: 7 additions & 1 deletion source/cfn/templates/gremlin-resolvers.template
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Original file line number Diff line number Diff line change
Expand Up @@ -61,11 +61,16 @@ Resources:
GroupDescription: Security group for Gremlin AppSync lambda
VpcId: !Ref VpcId
SecurityGroupEgress:
- Description: Restrict egress to VPC only
- Description: Restrict egress to neptune in VPC only
CidrIp: !Ref VPCCidrBlock
IpProtocol: tcp
ToPort: !Ref NeptuneClusterPort
FromPort: !Ref NeptuneClusterPort
- Description: Allow UDP egress to DNS resolvers
CidrIp: !Ref VPCCidrBlock
IpProtocol: udp
ToPort: 53
FromPort: 53

NeptuneDbSgIngressRule:
Type: AWS::EC2::SecurityGroupIngress
Expand Down Expand Up @@ -318,3 +323,4 @@ Resources:
TypeName: Query
FieldName: getResourcesRegionMetadata
DataSourceName: !Ref AppSyncSettingsLambdaDataSourceName