Adds metrics_config to aws_lambda_event_source_mapping

[amardatar]

Description

This PR adds support for metrics_config in the aws_lambda_event_source_mapping resource. Copied from the related issue:

---

AWS Lambda announces new Amazon CloudWatch metrics for Lambda Event Source Mappings (ESMs), which provide customers visibility into the processing state of events read by ESMs that subscribe to Amazon SQS, Amazon Kinesis, and Amazon DynamoDB event sources.

• Announcement

• Blog post

Affected Resource(s) and/or Data Source(s)

• aws_lambda_event_source_mapping

Potential Terraform Configuration

resource "aws_lambda_event_source_mapping" "example" {
  metrics_config {
    metrics = ["EventCount"]
  }
}

---

Relations

Closes #40275

References

Docs for Event Source Mapping Metrics

API Reference for the EventSourceMappingMetricsConfig

Output from Acceptance Testing

% make testacc TESTS=TestAccLambdaEventSourceMapping_SQS_metricsConfig PKG=lambda
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.3 test ./internal/service/lambda/... -v -count 1 -parallel 20 -run='TestAccLambdaEventSourceMapping_SQS_metricsConfig'  -timeout 360m
2024/11/26 23:53:31 Initializing Terraform AWS Provider...
=== RUN   TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== PAUSE TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== CONT  TestAccLambdaEventSourceMapping_SQS_metricsConfig
--- PASS: TestAccLambdaEventSourceMapping_SQS_metricsConfig (96.66s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/lambda     101.640s

[github-actions]

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[amardatar]

Created a PR for this as it looked straight-forward enough, and something I'm looking to use. That said - I'm new to Go and to this project so please call out if I should be changing anything in here or am not following standards.

[github-actions]

Welcome @amardatar 👋

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]

LGTM 🚀.

% make testacc TESTARGS='-run=TestAccLambdaEventSourceMapping_Kinesis_basic\|TestAccLambdaEventSourceMapping_SQS_metricsConfig' PKG=lambda
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.3 test ./internal/service/lambda/... -v -count 1 -parallel 20  -run=TestAccLambdaEventSourceMapping_Kinesis_basic\|TestAccLambdaEventSourceMapping_SQS_metricsConfig -timeout 360m
2024/11/27 09:08:57 Initializing Terraform AWS Provider...
=== RUN   TestAccLambdaEventSourceMapping_Kinesis_basic
=== PAUSE TestAccLambdaEventSourceMapping_Kinesis_basic
=== RUN   TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== PAUSE TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== CONT  TestAccLambdaEventSourceMapping_Kinesis_basic
=== CONT  TestAccLambdaEventSourceMapping_SQS_metricsConfig
--- PASS: TestAccLambdaEventSourceMapping_Kinesis_basic (67.84s)
--- PASS: TestAccLambdaEventSourceMapping_SQS_metricsConfig (97.77s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/lambda	103.267s

[johnsonaj]

LGTM 🚀

% make testacc TESTARGS='-run=TestAccLambdaEventSourceMapping_Kinesis_basic\|TestAccLambdaEventSourceMapping_SQS_metricsConfig' PKG=lambda

make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.3 test ./internal/service/lambda/... -v -count 1 -parallel 20  -run=TestAccLambdaEventSourceMapping_Kinesis_basic\|TestAccLambdaEventSourceMapping_SQS_metricsConfig -timeout 360m
2024/11/27 10:32:29 Initializing Terraform AWS Provider...
=== RUN   TestAccLambdaEventSourceMapping_Kinesis_basic
=== PAUSE TestAccLambdaEventSourceMapping_Kinesis_basic
=== RUN   TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== PAUSE TestAccLambdaEventSourceMapping_SQS_metricsConfig
=== CONT  TestAccLambdaEventSourceMapping_Kinesis_basic
=== CONT  TestAccLambdaEventSourceMapping_SQS_metricsConfig
--- PASS: TestAccLambdaEventSourceMapping_Kinesis_basic (75.07s)
--- PASS: TestAccLambdaEventSourceMapping_SQS_metricsConfig (109.78s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/lambda	116.254s

[ewbankkit]

@amardatar Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v5.79.0 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!

[github-actions]

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.