[Bug]: "aws_api_gateway_integration" keeps reporting 'connection_type = "INTERNET"' change for MOCK integrations

[mkielar]

Terraform Core Version

1.3.1

AWS Provider Version

4.51.0

Affected Resource(s)

• aws_api_gateway_integration

Expected Behavior

Terraform should not continously show MOCK type integrations as subject to change.

Actual Behavior

Regardless of which configuration option (see below) we use for the resource, terraform plan always shows this bit:

  # module.[REDACTED].module.api_gateway_private[0].module.dummy_resource.aws_api_gateway_integration.this will be updated in-place
  ~ resource "aws_api_gateway_integration" "this" {
      + connection_type      = "INTERNET"
        id                   = "agi-[REDACTED]-ANY"
        # (10 unchanged attributes hidden)
    }

Relevant Error/Panic Output Snippet

N/A

Terraform Configuration Files

Initially, we had this:

resource "aws_api_gateway_integration" "this" {
  rest_api_id = var.api_gateway_id
  resource_id = aws_api_gateway_resource.this.id
  http_method = aws_api_gateway_method.this.http_method

  type            = "MOCK"
}

Later, we changed it to this:

resource "aws_api_gateway_integration" "this" {
  rest_api_id = var.api_gateway_id
  resource_id = aws_api_gateway_resource.this.id
  http_method = aws_api_gateway_method.this.http_method

  type            = "MOCK"
  connection_type = "INTERNET"
}

In both cases, the output of terraform plan is the same - it shows the change on the connection_type attribute.

Steps to Reproduce

1. Define aws_api_gateway_integration resource with MOCK type and no connection_type in HCL.
2. Run terraform apply
3. Run terraform plan and observe it wants to set connection_type to INTERNET
4. Modify HCL to explicitely set connection_type to INTERNET, and run terraform apply
5. Run terraform plan again and observe it still wants to set connection_type to INTERNET

Debug Output

N/A

Panic Output

N/A

Important Factoids

No response

References

No response

Would you like to implement a fix?

None

[github-actions]

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[mkielar]

OK, this may be the same as #28997, but the type used there is different.

[olhrabar]

Have the same issue:

  ~ resource "aws_api_gateway_integration" "test" {
      + connection_type         = "INTERNET"
        id                      = "agi-test-test-test-test"
        # (13 unchanged attributes hidden)
    }

[starrago-illuminateed]

Same issue here:

~ resource "aws_api_gateway_integration" "test-auth-method-integration" {
+ connection_type = "INTERNET"
id = "agi-test-test-GET"
# (12 unchanged attributes hidden)
}

[justinretzolk]

Hey y'all 👋 This was fixed with #29016, which will go out with version 4.52.0 later today. Given that, we'll go ahead and close this issue out. If you have issues after upgrading, please do open a new issue to let us know.

[github-actions]

I'm going to lock this issue 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 similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.