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AWS ALB - AWS Lambda integration with CloudFormation (YAML)
AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Parameters:
Subnets:
Type: List<AWS::EC2::Subnet::Id>
VpcId:
Type: AWS::EC2::VPC::Id
Resources:
myFunction:
Type: AWS::Serverless::Function
Properties:
Handler: index.handler
# ...
# all the other properties here
# ...
myLoadBalancer:
Type: AWS::ElasticLoadBalancingV2::LoadBalancer
Properties:
Scheme: internet-facing
Subnets: !Ref Subnets
SecurityGroups: [!Ref mySecurityGroup]
myTargetGroup:
Type: AWS::ElasticLoadBalancingV2::TargetGroup
DependsOn: myLambdaPermission
Properties:
TargetType: lambda
Targets:
- Id: !GetAtt myFunction.Arn
myHttpListener:
Type: AWS::ElasticLoadBalancingV2::Listener
Properties:
LoadBalancerArn: !Ref myLoadBalancer
Port: 80
Protocol: HTTP
DefaultActions:
- TargetGroupArn: !Ref myTargetGroup
Type: forward
mySecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: Allow http on port 80
VpcId: !Ref VpcId
SecurityGroupIngress:
- IpProtocol: tcp
FromPort: 80
ToPort: 80
CidrIp: 0.0.0.0/0
myLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
FunctionName: !GetAtt myFunction.Arn
Action: lambda:InvokeFunction
Principal: elasticloadbalancing.amazonaws.com
Outputs:
DNSName:
Value: !GetAtt myLoadBalancer.DNSName
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