Updating connection_arn on aws_cloudwatch_event_api_destination crashes terraform cli

[timo-reymann]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Terraform CLI and Terraform AWS Provider Version

$ terraform -v
Terraform v0.14.7
+ provider registry.terraform.io/hashicorp/aws v3.43.0

Affected Resource(s)

• aws_cloudwatch_event_api_destination

Terraform Configuration Files

resource "aws_cloudwatch_event_connection" "basic_auth_foo" {
  name               = "http-basic-auth-connection"
  description        = "Basic http bin integration"
  authorization_type = "BASIC"

  auth_parameters {
    basic {
      username = "foo"
      password = "bar"
    }
  }
}

resource "aws_cloudwatch_event_connection" "basic_auth_bar" {
  name               = "http-basic-auth-connection"
  description        = "Basic http bin integration"
  authorization_type = "BASIC"

  auth_parameters {
    basic {
      username = "bar"
      password = "foo"
    }
  }
}

resource "aws_cloudwatch_event_api_destination" "http_webhook" {
  name                             = "http-webhook-test"
  description                      = "An webhook Destination"
  invocation_endpoint              = var.webhook_url
  http_method                      = "POST"
  invocation_rate_limit_per_second = 20
  connection_arn                   = aws_cloudwatch_event_connection.basic_auth_bar.arn
}

Trace Output

https://gist.github.com/timo-reymann/67985bee8ca086a09ea0ad54b0eb1755#file-crash-output-on-loglevel-trace

Expected Behavior

It should recreate the resource or update the connection_arn

Actual Behavior

Terraform crashes

Steps to Reproduce

1. terraform apply
2. Change connection_arn to aws_cloudwatch_event_connection.basic_auth_foo.arn
3. Run terraform apply
4. Plugin crashes after approving changes

Important Factoids

none

Workaround

As a workaround you can taint the resource, so it gets recreated.

[ewbankkit]

panic: interface conversion: interface {} is int, not int64

goroutine 92 [running]:
github.com/terraform-providers/terraform-provider-aws/aws.resourceAwsCloudWatchEventApiDestinationUpdate(0xc001942180, 0x6e443a0, 0xc002267200, 0x0, 0xffffffffffffffff)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/hashicorp/terraform-provider-aws/aws/resource_aws_cloudwatch_event_api_destination.go:151 +0x7b9
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).update(0xc000878a80, 0x8752568, 0xc0019222c0, 0xc001942180, 0x6e443a0, 0xc002267200, 0x0, 0x0, 0x0)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/github.com/hashicorp/terraform-plugin-sdk/[email protected]/helper/schema/resource.go:352 +0x1ee
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).Apply(0xc000878a80, 0x8752568, 0xc0019222c0, 0xc00043bb20, 0xc0010f4ac0, 0x6e443a0, 0xc002267200, 0x0, 0x0, 0x0, ...)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/github.com/hashicorp/terraform-plugin-sdk/[email protected]/helper/schema/resource.go:464 +0x390
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*GRPCProviderServer).ApplyResourceChange(0xc00012a810, 0x8752568, 0xc0019222c0, 0xc0018a5b80, 0xc0019222c0, 0x7a040e0, 0xc0018fbc00)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/github.com/hashicorp/terraform-plugin-sdk/[email protected]/helper/schema/grpc_provider.go:955 +0x8ef
github.com/hashicorp/terraform-plugin-go/tfprotov5/server.(*server).ApplyResourceChange(0xc00211ac00, 0x8752610, 0xc0019222c0, 0xc00043b8f0, 0xc00211ac00, 0xc0018fbc80, 0xc0005fcba0)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/github.com/hashicorp/[email protected]/tfprotov5/server/server.go:332 +0xb5
github.com/hashicorp/terraform-plugin-go/tfprotov5/internal/tfplugin5._Provider_ApplyResourceChange_Handler(0x7a040e0, 0xc00211ac00, 0x8752610, 0xc0018fbc80, 0xc001918a80, 0x0, 0x8752610, 0xc0018fbc80, 0xc001934000, 0x4d3)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/github.com/hashicorp/[email protected]/tfprotov5/internal/tfplugin5/tfplugin5_grpc.pb.go:380 +0x214
google.golang.org/grpc.(*Server).processUnaryRPC(0xc000911340, 0x8773cb8, 0xc002138780, 0xc0018ff100, 0xc001499b90, 0xbe677a0, 0x0, 0x0, 0x0)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/google.golang.org/[email protected]/server.go:1194 +0x52b
google.golang.org/grpc.(*Server).handleStream(0xc000911340, 0x8773cb8, 0xc002138780, 0xc0018ff100, 0x0)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/google.golang.org/[email protected]/server.go:1517 +0xd0c
google.golang.org/grpc.(*Server).serveStreams.func1.2(0xc00148e900, 0xc000911340, 0x8773cb8, 0xc002138780, 0xc0018ff100)
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/google.golang.org/[email protected]/server.go:859 +0xab
created by google.golang.org/grpc.(*Server).serveStreams.func1
        /opt/teamcity-agent/work/5d79fe75d4460a2f/pkg/mod/google.golang.org/[email protected]/server.go:857 +0x1fd

terraform-provider-aws/aws/resource_aws_cloudwatch_event_api_destination.go

Lines 150 to 152 in 55a32a8

	if invocationRateLimitPerSecond, ok := d.GetOk("invocation_rate_limit_per_second"); ok {
	input.InvocationRateLimitPerSecond = aws.Int64(invocationRateLimitPerSecond.(int64))
	}

Related:

• r/aws_cloudwatch_event_api_destination: Maximum value for invocation_rate_limit_per_second is 300 #19594
• Add support for Cloudwatch Event API Destination and Connections #18905

[ghost]

This has been released in version 3.44.0 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!

[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.