feat(elasticloadbalancingv2): alb dualstack without public ipv4 #30248

mazyu36 · 2024-05-17T01:26:13Z

Issue # (if applicable)

Closes #30256.

Reason for this change

ALB supported a new dual-stack ALB without public IPv4.

https://aws.amazon.com/jp/about-aws/whats-new/2024/05/application-load-balancer-ipv6-internet-clients/

Description of changes

Add IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4

Description of how you validated changes

Add unit tests & integ tests

Checklist

My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

watany-dev · 2024-05-17T13:57:19Z

To cdkteam, why not keep the IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4 identifier but add the IpAddressType.IPV6 alias? This is essentially easy to understand.

pahud · 2024-05-17T17:44:07Z

packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/alb/application-load-balancer.ts

@@ -186,6 +186,11 @@ export class ApplicationLoadBalancer extends BaseLoadBalancer implements IApplic
    });

    this.ipAddressType = props.ipAddressType ?? IpAddressType.IPV4;
+
+    if (props.ipAddressType === IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4 && !props.internetFacing) {
+      throw new Error('dual-stack without public IPv4 address can only be used with internet-facing scheme.');


do you have the link of the document about this restriction?

@pahud
Thank you for your comment.
That restriction is not mentioned in the documentation, but it is stated on the management console.

If the internal scheme is selected, the "Dual-stack without public IPv4" option disappears and cannot be configured.

pahud

DUAL_STACK_WITHOUT_PUBLIC_IPV4 supports ALB only, should we have a check that if the elbv2 with that ipAddressType is not ALB we should throw the error?

Should we add this in base-load-balancer.ts?

    // DUAL_STACK_WITHOUT_PUBLIC_IPV4 only available for ALB
    if (additionalProps.ipAddressType === IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4 &&
      additionalProps.type !== cxschema.LoadBalancerType.APPLICATION) {
      throw new Error(`'ipAddressType' DUAL_STACK_WITHOUT_PUBLIC_IPV4 can only be used with ALB, got ${additionalProps.type}`);
    }

pahud · 2024-05-17T17:52:42Z

To cdkteam, why not keep the IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4 identifier but add the IpAddressType.IPV6 alias? This is essentially easy to understand.

At this moment, CFN does not have ipv6 in its IpAddressType. I would avoid using that because it could mean something else when CFN adds that in the future.

mazyu36 · 2024-05-17T18:22:10Z

DUAL_STACK_WITHOUT_PUBLIC_IPV4 supports ALB only, should we have a check that if the elbv2 with that ipAddressType is not ALB we should throw the error?

Should we add this in base-load-balancer.ts?
    // DUAL_STACK_WITHOUT_PUBLIC_IPV4 only available for ALB
    if (additionalProps.ipAddressType === IpAddressType.DUAL_STACK_WITHOUT_PUBLIC_IPV4 &&
      additionalProps.type !== cxschema.LoadBalancerType.APPLICATION) {
      throw new Error(`'ipAddressType' DUAL_STACK_WITHOUT_PUBLIC_IPV4 can only be used with ALB, got ${additionalProps.type}`);
    }

@pahud
Thank you. I also thought it would be better to have validation.
I have added the validation and a unit test.

urda · 2024-05-20T17:29:29Z

Featured in the weekly roundup, adding this quickly will help teams drive lower costs.

packages/aws-cdk-lib/aws-elasticloadbalancingv2/lib/shared/base-load-balancer.ts

packages/aws-cdk-lib/aws-elasticloadbalancingv2/test/nlb/load-balancer.test.ts

...mework-integ/test/aws-elasticloadbalancingv2/test/integ.alb.dualstack-without-public-ipv4.ts

…balancingv2/test/integ.alb.dualstack-without-public-ipv4.ts Co-authored-by: Calvin Combs <[email protected]>

mazyu36 · 2024-06-21T19:04:37Z

@comcalvi
Thank you for the review!
I've updated.

aws-cdk-automation · 2024-08-10T00:09:54Z

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mergify · 2024-09-11T18:36:36Z

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mazyu36 · 2024-09-11T22:20:28Z

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aws-cdk-automation requested a review from a team May 17, 2024 01:26

github-actions bot added p2 valued-contributor [Pilot] contributed between 6-12 PRs to the CDK labels May 17, 2024

feat: alb dualstack without public ipv4

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mazyu36 force-pushed the alb-ipv6 branch from f1706e2 to 8c0bbcb Compare May 17, 2024 03:03

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chore: existing unit tests format reverted

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elbv2: IPv6 only support #30256

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pahud reviewed May 17, 2024

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Update packages/@aws-cdk-testing/framework-integ/test/aws-elasticload…

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…balancingv2/test/integ.alb.dualstack-without-public-ipv4.ts Co-authored-by: Calvin Combs <[email protected]>

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feat(elasticloadbalancingv2): alb dualstack without public ipv4 #30248

feat(elasticloadbalancingv2): alb dualstack without public ipv4 #30248

mazyu36 commented May 17, 2024 •

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feat(elasticloadbalancingv2): alb dualstack without public ipv4 #30248

feat(elasticloadbalancingv2): alb dualstack without public ipv4 #30248

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mazyu36 commented May 17, 2024 • edited Loading

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