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Can't set Lambda as ALB Target #17457

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usman5251 opened this issue Nov 10, 2021 · 2 comments
Closed

Can't set Lambda as ALB Target #17457

usman5251 opened this issue Nov 10, 2021 · 2 comments
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@njlynch
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@aws-cdk/aws-elasticloadbalancingv2-targets bug This issue is a bug. needs-triage This issue or PR still needs to be triaged.

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@usman5251
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usman5251 commented Nov 10, 2021 •
edited by ryparker
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What is the problem?

Previously I was able to use the below stack to set Lambda Function as ALB target. Now it doesn't work

# VPC
vpc = ec2.Vpc(self, "MyVpc",
    max_azs=3,
)

# ALB
load_balancer = elbv2.ApplicationLoadBalancer(self, "LB",
    idle_timeout=core.Duration.seconds(180),
    vpc=vpc,
    internet_facing=True,
)



# ALB listening PORT
listener = load_balancer.add_listener("Listener",
    port=80,
    open=True,
)

# ALB Target
listener.add_targets("Targets",
    targets=[targets.LambdaTarget(Lambda_function)],
)

Now I get this error:

***** |  7/46 | 3:51:01 PM | CREATE_FAILED        | AWS::ElasticLoadBalancingV2::TargetGroup  | LB/Listener/TargetsGroup (LBListenerTargetsGroup76EF81E8) The provided target group attribute is not supported (Service: AmazonElasticLoadBalancing; Status Code: 400; Error Code: InvalidConfigurationRequest; Request ID: e31d9925-38b0-4c5d-8a20-e0035004d33f; Proxy: null)
	new TargetGroupBase (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/shared/base-target-group.js:44:25)
	\_ new ApplicationTargetGroup (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/alb/application-target-group.js:26:9)
	\_ ApplicationListener.addTargets (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/alb/application-listener.js:228:23)
	\_ /tmp/tmpmiwjswxa/lib/program.js:8248:134
	\_ Kernel._wrapSandboxCode (/tmp/tmpmiwjswxa/lib/program.js:8860:24)
	\_ /tmp/tmpmiwjswxa/lib/program.js:8248:107
	\_ Kernel._ensureSync (/tmp/tmpmiwjswxa/lib/program.js:8841:28)
	\_ Kernel.invoke (/tmp/tmpmiwjswxa/lib/program.js:8248:34)
	\_ KernelHost.processRequest (/tmp/tmpmiwjswxa/lib/program.js:9757:36)
	\_ KernelHost.run (/tmp/tmpmiwjswxa/lib/program.js:9720:22)
	\_ Immediate._onImmediate (/tmp/tmpmiwjswxa/lib/program.js:9721:46)
	\_ processImmediate (internal/timers.js:464:21)

I was able to use a workaround and I think I know what the problem is, Please read Other Information

Reproduction Steps

This stack should be enough to reproduce error:

# VPC
vpc = ec2.Vpc(self, "MyVpc",
    max_azs=3,
)

# ALB
load_balancer = elbv2.ApplicationLoadBalancer(self, "LB",
    idle_timeout=core.Duration.seconds(180),
    vpc=vpc,
    internet_facing=True,
)



# ALB listening PORT
listener = load_balancer.add_listener("Listener",
    port=80,
    open=True,
)

# ALB Target
listener.add_targets("Targets",
    targets=[targets.LambdaTarget(Lambda_function)],
)

What did you expect to happen?

Creation of ALB with Lambda as its target.

What actually happened?

I get this error:

***** |  7/46 | 3:51:01 PM | CREATE_FAILED        | AWS::ElasticLoadBalancingV2::TargetGroup  | LB/Listener/TargetsGroup (LBListenerTargetsGroup76EF81E8) The provided target group attribute is not supported (Service: AmazonElasticLoadBalancing; Status Code: 400; Error Code: InvalidConfigurationRequest; Request ID: e31d9925-38b0-4c5d-8a20-e0035004d33f; Proxy: null)
	new TargetGroupBase (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/shared/base-target-group.js:44:25)
	\_ new ApplicationTargetGroup (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/alb/application-target-group.js:26:9)
	\_ ApplicationListener.addTargets (/tmp/jsii-kernel-NDU3Bi/node_modules/@aws-cdk/aws-elasticloadbalancingv2/lib/alb/application-listener.js:228:23)
	\_ /tmp/tmpmiwjswxa/lib/program.js:8248:134
	\_ Kernel._wrapSandboxCode (/tmp/tmpmiwjswxa/lib/program.js:8860:24)
	\_ /tmp/tmpmiwjswxa/lib/program.js:8248:107
	\_ Kernel._ensureSync (/tmp/tmpmiwjswxa/lib/program.js:8841:28)
	\_ Kernel.invoke (/tmp/tmpmiwjswxa/lib/program.js:8248:34)
	\_ KernelHost.processRequest (/tmp/tmpmiwjswxa/lib/program.js:9757:36)
	\_ KernelHost.run (/tmp/tmpmiwjswxa/lib/program.js:9720:22)
	\_ Immediate._onImmediate (/tmp/tmpmiwjswxa/lib/program.js:9721:46)
	\_ processImmediate (internal/timers.js:464:21)

CDK CLI Version

1.132.0 (build 5c75891)

Framework Version

No response

Node.js Version

v16.11.0

OS

Manjaro

Language

Python

Language Version

Python 3.6

Other information

I had another project that used the same stack, Which used to work without any problems, Luckily I had the project with its Python Virtual Environment. I pip freeze > requirements.txt on that environment and used that requirements.txt in the current project. All went well then

Working Requirements.txt:

attrs==20.3.0
aws-cdk.assets==1.109.0
aws-cdk.aws-apigateway==1.109.0
aws-cdk.aws-applicationautoscaling==1.109.0
aws-cdk.aws-autoscaling==1.109.0
aws-cdk.aws-autoscaling-common==1.109.0
aws-cdk.aws-autoscaling-hooktargets==1.109.0
aws-cdk.aws-certificatemanager==1.109.0
aws-cdk.aws-cloudformation==1.109.0
aws-cdk.aws-cloudfront==1.109.0
aws-cdk.aws-cloudwatch==1.109.0
aws-cdk.aws-codebuild==1.109.0
aws-cdk.aws-codecommit==1.109.0
aws-cdk.aws-codeguruprofiler==1.109.0
aws-cdk.aws-codepipeline==1.109.0
aws-cdk.aws-codestarnotifications==1.109.0
aws-cdk.aws-cognito==1.109.0
aws-cdk.aws-dynamodb==1.109.0
aws-cdk.aws-ec2==1.109.0
aws-cdk.aws-ecr==1.109.0
aws-cdk.aws-ecr-assets==1.109.0
aws-cdk.aws-ecs==1.109.0
aws-cdk.aws-ecs-patterns==1.109.0
aws-cdk.aws-efs==1.109.0
aws-cdk.aws-elasticloadbalancing==1.109.0
aws-cdk.aws-elasticloadbalancingv2==1.109.0
aws-cdk.aws-elasticloadbalancingv2-targets==1.109.0
aws-cdk.aws-events==1.109.0
aws-cdk.aws-events-targets==1.109.0
aws-cdk.aws-globalaccelerator==1.109.0
aws-cdk.aws-iam==1.109.0
aws-cdk.aws-kinesis==1.109.0
aws-cdk.aws-kinesisfirehose==1.109.0
aws-cdk.aws-kms==1.109.0
aws-cdk.aws-lambda==1.109.0
aws-cdk.aws-logs==1.109.0
aws-cdk.aws-route53==1.109.0
aws-cdk.aws-route53-targets==1.109.0
aws-cdk.aws-s3==1.109.0
aws-cdk.aws-s3-assets==1.109.0
aws-cdk.aws-sam==1.109.0
aws-cdk.aws-secretsmanager==1.109.0
aws-cdk.aws-servicediscovery==1.109.0
aws-cdk.aws-signer==1.109.0
aws-cdk.aws-sns==1.109.0
aws-cdk.aws-sns-subscriptions==1.109.0
aws-cdk.aws-sqs==1.109.0
aws-cdk.aws-ssm==1.109.0
aws-cdk.aws-stepfunctions==1.109.0
aws-cdk.cloud-assembly-schema==1.109.0
aws-cdk.core==1.109.0
aws-cdk.custom-resources==1.109.0
aws-cdk.cx-api==1.109.0
aws-cdk.region-info==1.109.0
boto3==1.17.102
botocore==1.20.102
cattrs==1.0.0
certifi==2021.5.30
chardet==4.0.0
constructs==3.3.87
idna==2.10
importlib-resources==5.1.4
install==1.3.4
jmespath==0.10.0
jsii==1.30.0
publication==0.0.3
python-dateutil==2.8.1
requests==2.25.1
requests-toolbelt==0.9.1
s3transfer==0.4.2
selenium==3.141.0
six==1.16.0
typing-extensions==3.10.0.0
urllib3==1.26.5
zipp==3.4.1

Not working requirements.txt:

aws_cdk.core
aws_cdk.aws_events_targets
aws_cdk.aws_lambda
aws_cdk.aws_apigateway
aws_cdk.aws_elasticloadbalancingv2_targets
aws-cdk.aws_ec2
requests~=2.26.0
xmltodict~=0.12.0

I also found another issue, which I think is root cause of the issue. On running cdk synth, there is one major difference in output

output of cdk synth using latest dependencies (NOT WORKING):

....
LBListenerTargetsGroup76EF81E8:
    Type: AWS::ElasticLoadBalancingV2::TargetGroup
    Properties:
      TargetGroupAttributes:
        - Key: stickiness.enabled
          Value: "false"
      Targets:
        - Id:
            Fn::GetAtt:
              - ********8D1D94D0
              - Arn
      TargetType: lambda
    DependsOn:
....

output of cdk synth using old dependencies:

....
LBListenerTargetsGroup76EF81E8:
    Type: AWS::ElasticLoadBalancingV2::TargetGroup
    Properties:
      Targets:
        - Id:
            Fn::GetAtt:
              - ********8D1D94D0
              - Arn
      TargetType: lambda
    DependsOn:
....

Notice NOT WORKING cdk synth output has TargetGroupAttributes, while WORKING cdk synth output don't.

Please let me know if something is not clear.
@usman5251 usman5251 added bug This issue is a bug. needs-triage This issue or PR still needs to be triaged. labels Nov 10, 2021
@github-actions github-actions bot added the @aws-cdk/aws-lambda Related to AWS Lambda label Nov 10, 2021
@ryparker ryparker added effort/small Small work item – less than a day of effort p1 and removed needs-triage This issue or PR still needs to be triaged. labels Nov 10, 2021
blacha added a commit to linz/basemaps that referenced this issue Nov 11, 2021
@blacha
fix(infrastructure): revert aws-cdk to 1.111 until ALB target bug is …
ada1dc7 
…fixed

See aws/aws-cdk#17457
@blacha blacha mentioned this issue Nov 11, 2021
Merged
kodiakhq bot added a commit to linz/basemaps that referenced this issue Nov 11, 2021
@blacha @kodiakhq
fix(infrastructure): revert aws-cdk to 1.111 until ALB target bug is …
c73c292 
…fixed (#1962)

See aws/aws-cdk#17457

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
@nija-at nija-at removed their assignment Nov 24, 2021
@nija-at nija-at added @aws-cdk/aws-elasticloadbalancingv2-targets needs-triage This issue or PR still needs to be triaged. and removed @aws-cdk/aws-lambda Related to AWS Lambda p1 effort/small Small work item – less than a day of effort labels Nov 24, 2021
@njlynch
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njlynch commented Nov 24, 2021

Duplicate of #17261

@njlynch njlynch marked this as a duplicate of #17261 Nov 24, 2021
@njlynch njlynch closed this as completed Nov 24, 2021
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