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fix: ensure endpoint group weight 0 is taken into account #31767

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yannrouillard
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Zero is a valid value for an endpoint group configuration and it shouldn't be ignored and not sent to the API.

The current behaviour causes a endpoint weight of 128 to be used instead as it is AWS default value if no weight is set. This causes traffic to be sent despite the expectations that a zero value will cause no traffic on the endpoint.

Description

This Pull request fix the issue #31254 where a zero value for a global accelerator endpoint group configuration is ignored despite being a valid value.

Relations

Closes #31254

References

https://docs.aws.amazon.com/global-accelerator/latest/api/API_EndpointConfiguration.html

Zero is a valid value for an endpoint group configuration and
it shouldn't be ignored and not sent to the API.

The current behaviour causes a endpoint weight of 128 to be used
instead as it is AWS default value if no weight is set.
This causes traffic to be sent despite the expectations that
a zero value will cause no traffic on the endpoint.
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github-actions bot commented Jun 5, 2023

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@github-actions github-actions bot added service/globalaccelerator Issues and PRs that pertain to the globalaccelerator service. size/XS Managed by automation to categorize the size of a PR. needs-triage Waiting for first response or review from a maintainer. labels Jun 5, 2023
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Welcome @yannrouillard 👋

It looks like this is your first Pull Request submission to the Terraform AWS Provider! If you haven’t already done so please make sure you have checked out our CONTRIBUTOR guide and FAQ to make sure your contribution is adhering to best practice and has all the necessary elements in place for a successful approval.

Also take a look at our FAQ which details how we prioritize Pull Requests for inclusion.

Thanks again, and welcome to the community! 😃

@ewbankkit ewbankkit added bug Addresses a defect in current functionality. and removed needs-triage Waiting for first response or review from a maintainer. labels Jun 5, 2023
@github-actions github-actions bot added the tests PRs: expanded test coverage. Issues: expanded coverage, enhancements to test infrastructure. label Jun 5, 2023
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LGTM 🚀.

% make testacc TESTARGS='-run=TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP' PKG=globalaccelerator ACCTEST_PARALLELISM=2
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/globalaccelerator/... -v -count 1 -parallel 2  -run=TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP -timeout 180m
=== RUN   TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP
=== PAUSE TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP
=== CONT  TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP
--- PASS: TestAccGlobalAcceleratorEndpointGroup_ALBEndpoint_clientIP (843.01s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/globalaccelerator	848.794s

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@yannrouillard Thanks for the contribution 🎉 👏.

@ewbankkit ewbankkit merged commit 7c0740c into hashicorp:main Jun 5, 2023
@github-actions github-actions bot added this to the v5.2.0 milestone Jun 5, 2023
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github-actions bot commented Jun 9, 2023

This functionality has been released in v5.2.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

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I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.

@github-actions github-actions bot locked as resolved and limited conversation to collaborators Jul 10, 2023
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bug Addresses a defect in current functionality. service/globalaccelerator Issues and PRs that pertain to the globalaccelerator service. size/XS Managed by automation to categorize the size of a PR. tests PRs: expanded test coverage. Issues: expanded coverage, enhancements to test infrastructure.
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Successfully merging this pull request may close these issues.

[Bug]: Can't apply aws_globalaccelerator_endpoint_group resource after modifying the weight
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