aws_lambda_function_event_invoke_config documentation example produces state error

[lwiegma1]

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Terraform Version

Terraform v0.12.17
Terraform v0.12.23
Behavior was also observed in
Terraform v0.11.14

Affected Resource(s)

• aws_lambda_function_event_invoke_config

Terraform Configuration Files

In the Documentation for the resource, the example code under the heading "Configuration for Alias Name" will produce an error when used:

resource "aws_lambda_function_event_invoke_config" "example" {
  function_name = aws_lambda_alias.example.function_name  #---this line does not work
  qualifier     = aws_lambda_alias.example.name

  # ... other configuration ...
}

The aws_lambda_alias.example.function_name appears to return an arn, and results in a corruption of the state. It works if the code is:

resource "aws_lambda_function_event_invoke_config" "example" {
  function_name = aws_lambda_function.example.function_name
  qualifier     = aws_lambda_alias.example.name

  # ... other configuration ...
}

Panic Output

Expected Behavior

Expect the resource to either gracefully handle the arn in the state or correct the documentation

Actual Behavior

Once the code in question runs, further plans are not possible, and only produce this error until the resource is manually removed from the state.

Error: unexpected format of function resource (arn:aws:lambda:us-east-1:123456789012:function:example_function:example_alias), expected name:qualifier

Steps to Reproduce

1. Create a function, alias, and event_invoke_config with the documented example.
2. terraform apply
3. attempt any further plan or apply operation

[bflad]

The fix for this has been merged and will be released with version 3.5.0 of the Terraform AWS Provider, later this week. Thanks to @nikhil-goenka for the fix. 👍

This has been released in version 3.5.0 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 for triage. Thanks!

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