aws_default_route_table resource crash with routes to VPC endpoints

[ewbankkit]

Managing an aws_default_route_table resource crashes during terraform apply if the route table contains routes to VPC endpoints.
Terraform version: 0.7.11.
Sample HCL:

provider "aws" {
    region = "us-west-2"
}

resource "aws_vpc" "test" {
    cidr_block = "10.0.0.0/16"

    tags {
        Name = "test"
    }
}

resource "aws_internet_gateway" "igw" {
    vpc_id = "${aws_vpc.test.id}"

    tags {
        Name = "test"
    }
}

resource "aws_vpc_endpoint" "s3" {
    vpc_id = "${aws_vpc.test.id}"
    service_name = "com.amazonaws.us-west-2.s3"
    route_table_ids = [
        "${aws_vpc.test.default_route_table_id}"
    ]
}

resource "aws_default_route_table" "default" {
    default_route_table_id = "${aws_vpc.test.default_route_table_id}"

    tags {
        Name = "test"
    }

    route {
        cidr_block = "0.0.0.0/0"
        gateway_id = "${aws_internet_gateway.igw.id}"
    }
}

$ terraform apply
aws_vpc.test: Creating...
  cidr_block:                "" => "10.0.0.0/16"
  default_network_acl_id:    "" => "<computed>"
  default_route_table_id:    "" => "<computed>"
  default_security_group_id: "" => "<computed>"
  dhcp_options_id:           "" => "<computed>"
  enable_classiclink:        "" => "<computed>"
  enable_dns_hostnames:      "" => "<computed>"
  enable_dns_support:        "" => "<computed>"
  instance_tenancy:          "" => "<computed>"
  main_route_table_id:       "" => "<computed>"
  tags.%:                    "" => "1"
  tags.Name:                 "" => "test"
aws_vpc.test: Creation complete
aws_internet_gateway.igw: Creating...
  tags.%:    "0" => "1"
  tags.Name: "" => "test"
  vpc_id:    "" => "vpc-0b65a66c"
aws_vpc_endpoint.s3: Creating...
  policy:                     "" => "<computed>"
  prefix_list_id:             "" => "<computed>"
  route_table_ids.#:          "" => "1"
  route_table_ids.1168383243: "" => "rtb-401e8a27"
  service_name:               "" => "com.amazonaws.us-west-2.s3"
  vpc_id:                     "" => "vpc-0b65a66c"
aws_vpc_endpoint.s3: Creation complete
aws_internet_gateway.igw: Creation complete
aws_default_route_table.default: Creating...
  default_route_table_id:                    "" => "rtb-401e8a27"
  route.#:                                   "" => "1"
  route.621611207.cidr_block:                "" => "0.0.0.0/0"
  route.621611207.gateway_id:                "" => "igw-fdaa3499"
  route.621611207.instance_id:               "" => ""
  route.621611207.nat_gateway_id:            "" => ""
  route.621611207.network_interface_id:      "" => ""
  route.621611207.vpc_peering_connection_id: "" => ""
  tags.%:                                    "" => "1"
  tags.Name:                                 "" => "test"
  vpc_id:                                    "" => "<computed>"
Error applying plan:

1 error(s) occurred:

* aws_default_route_table.default: unexpected EOF

Terraform does not automatically rollback in the face of errors.
Instead, your Terraform state file has been partially updated with
any resources that successfully completed. Please address the error
above and apply again to incrementally change your infrastructure.
panic: runtime error: invalid memory address or nil pointer dereference
2016/11/22 12:07:52 [DEBUG] plugin: terraform: [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x3e0264]
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 
2016/11/22 12:07:52 [DEBUG] plugin: terraform: goroutine 298 [running]:
2016/11/22 12:07:52 [DEBUG] plugin: terraform: panic(0x261a740, 0xc42000e0b0)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/go/src/runtime/panic.go:500 +0x1a1
2016/11/22 12:07:52 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/builtin/providers/aws.revokeAllRouteTableRules(0xc4200eee20, 0xc, 0x23674a0, 0xc420500340, 0x1, 0x0)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/aws/resource_aws_default_route_table.go:193 +0x504
2016/11/22 12:07:52 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/builtin/providers/aws.resourceAwsDefaultRouteTableCreate(0xc420540f00, 0x23674a0, 0xc420500340, 0xc4203ad740, 0x15fd1)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/aws/resource_aws_default_route_table.go:104 +0x287
2016/11/22 12:07:52 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/helper/schema.(*Resource).Apply(0xc42081fda0, 0xc4206409b0, 0xc420147cc0, 0x23674a0, 0xc420500340, 0x1, 0xc4201c5800, 0x18)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/gopath/src/github.com/hashicorp/terraform/helper/schema/resource.go:162 +0x30e
2016/11/22 12:07:52 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/helper/schema.(*Provider).Apply(0xc4206971d0, 0xc420640910, 0xc4206409b0, 0xc420147cc0, 0x0, 0xa83ae7, 0xc42010e380)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/gopath/src/github.com/hashicorp/terraform/helper/schema/provider.go:178 +0x9b
2016/11/22 12:07:52 [DEBUG] plugin: terraform: github.com/hashicorp/terraform/plugin.(*ResourceProviderServer).Apply(0xc4202947a0, 0xc420147c00, 0xc4200eeee0, 0x0, 0x0)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/gopath/src/github.com/hashicorp/terraform/plugin/resource_provider.go:460 +0x57
2016/11/22 12:07:52 [DEBUG] plugin: terraform: reflect.Value.call(0xc4204920c0, 0xc42002e8f0, 0x13, 0x2bff6b2, 0x4, 0xc4208d3ed0, 0x3, 0x3, 0xc42000dc00, 0xc420540cc0, ...)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/go/src/reflect/value.go:434 +0x5c8
2016/11/22 12:07:52 [DEBUG] plugin: terraform: reflect.Value.Call(0xc4204920c0, 0xc42002e8f0, 0x13, 0xc4208d3ed0, 0x3, 0x3, 0xb6092f, 0xc4203886f0, 0xc420388700)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/go/src/reflect/value.go:302 +0xa4
2016/11/22 12:07:52 [DEBUG] plugin: terraform: net/rpc.(*service).call(0xc420306c40, 0xc420306c00, 0xc42028d468, 0xc420088e80, 0xc42069b480, 0x23693a0, 0xc420147c00, 0x16, 0x23693e0, 0xc4200eeee0, ...)
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/go/src/net/rpc/server.go:383 +0x148
2016/11/22 12:07:52 [DEBUG] plugin: terraform: created by net/rpc.(*Server).ServeCodec
2016/11/22 12:07:52 [DEBUG] plugin: terraform: 	/opt/go/src/net/rpc/server.go:477 +0x421

[ewbankkit]

Looks similar to:

• crash when importing aws_route_table #8225
• provider/aws: Fix import of RouteTable with destination prefixes  #9686

[ewbankkit]

This crash can have the effect of removing routes from the default route table which then have to be added back manually.

[ghost]

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.

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