resource/aws_internet_gateway: an unexpected new value for was present, but now absent.

[ialidzhikov]

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Terraform CLI and Terraform AWS Provider Version

terraform version - 0.12.31
provider-aws version - 3.54.0

Affected Resource(s)

• aws_internet_gateway

Terraform Configuration Files

Please include all Terraform configurations required to reproduce the bug. Bug reports without a functional reproduction may be closed without investigation.

    provider "aws" {
      access_key = "${var.ACCESS_KEY_ID}"
      secret_key = "${var.SECRET_ACCESS_KEY}"
      region     = "eu-west-1"
    }

    resource "aws_vpc_dhcp_options" "vpc_dhcp_options" {
      domain_name         = "eu-west-1.compute.internal"
      domain_name_servers = ["AmazonProvidedDNS"]
    }

    resource "aws_vpc" "vpc" {
      cidr_block           = "10.250.0.0/16"
      enable_dns_support   = true
      enable_dns_hostnames = true
    }

    resource "aws_vpc_dhcp_options_association" "vpc_dhcp_options_association" {
      vpc_id          = "${aws_vpc.vpc.id}"
      dhcp_options_id = "${aws_vpc_dhcp_options.vpc_dhcp_options.id}"
    }

    resource "aws_default_security_group" "default" {
      vpc_id = "${aws_vpc.vpc.id}"
    }

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

    resource "aws_route_table" "routetable_main" {
      vpc_id = "${aws_vpc.vpc.id}"
    }

    resource "aws_route" "public" {
      route_table_id         = "${aws_route_table.routetable_main.id}"
      destination_cidr_block = "0.0.0.0/0"
      gateway_id             = "${aws_internet_gateway.igw.id}"
    }

    resource "aws_security_group" "nodes" {
      name        = "foo-nodes"
      description = "Security group for nodes"
      vpc_id      = "${aws_vpc.vpc.id}"
    }

    resource "aws_security_group_rule" "nodes_self" {
      type              = "ingress"
      from_port         = 0
      to_port           = 0
      protocol          = "-1"
      self              = true
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_security_group_rule" "nodes_tcp_all" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "tcp"
      cidr_blocks       = ["0.0.0.0/0"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_security_group_rule" "nodes_udp_all" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "udp"
      cidr_blocks       = ["0.0.0.0/0"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_security_group_rule" "nodes_egress_all" {
      type              = "egress"
      from_port         = 0
      to_port           = 0
      protocol          = "-1"
      cidr_blocks       = ["0.0.0.0/0"]
      security_group_id = "${aws_security_group.nodes.id}"
    }


    resource "aws_subnet" "nodes_z0" {
      vpc_id            = "${aws_vpc.vpc.id}"
      cidr_block        = "10.250.0.0/19"
      availability_zone = "eu-west-1c"
    }

    output "subnet_nodes_z0" {
      value = "${aws_subnet.nodes_z0.id}"
    }

    resource "aws_subnet" "private_utility_z0" {
      vpc_id            = "${aws_vpc.vpc.id}"
      cidr_block        = "10.250.112.0/22"
      availability_zone = "eu-west-1c"
    }

    resource "aws_security_group_rule" "nodes_tcp_internal_z0" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "tcp"
      cidr_blocks       = ["10.250.112.0/22"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_security_group_rule" "nodes_udp_internal_z0" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "udp"
      cidr_blocks       = ["10.250.112.0/22"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_subnet" "public_utility_z0" {
      vpc_id            = "${aws_vpc.vpc.id}"
      cidr_block        = "10.250.96.0/22"
      availability_zone = "eu-west-1c"
    }

    output "subnet_public_utility_z0" {
      value = "${aws_subnet.public_utility_z0.id}"
    }

    resource "aws_security_group_rule" "nodes_tcp_public_z0" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "tcp"
      cidr_blocks       = ["10.250.96.0/22"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_security_group_rule" "nodes_udp_public_z0" {
      type              = "ingress"
      from_port         = 30000
      to_port           = 32767
      protocol          = "udp"
      cidr_blocks       = ["10.250.96.0/22"]
      security_group_id = "${aws_security_group.nodes.id}"
    }

    resource "aws_eip" "eip_natgw_z0" {
      vpc = true
    }

    resource "aws_nat_gateway" "natgw_z0" {
      allocation_id = "${aws_eip.eip_natgw_z0.id}"
      subnet_id     = "${aws_subnet.public_utility_z0.id}"
    }

    resource "aws_route_table" "routetable_private_utility_z0" {
      vpc_id = "${aws_vpc.vpc.id}"
    }

    resource "aws_route" "private_utility_z0_nat" {
      route_table_id         = "${aws_route_table.routetable_private_utility_z0.id}"
      destination_cidr_block = "0.0.0.0/0"
      nat_gateway_id         = "${aws_nat_gateway.natgw_z0.id}"

      timeouts {
        create = "5m"
      }
    }

    resource "aws_route_table_association" "routetable_private_utility_z0_association_private_utility_z0" {
      subnet_id      = "${aws_subnet.private_utility_z0.id}"
      route_table_id = "${aws_route_table.routetable_private_utility_z0.id}"
    }

    resource "aws_route_table_association" "routetable_main_association_public_utility_z0" {
      subnet_id      = "${aws_subnet.public_utility_z0.id}"
      route_table_id = "${aws_route_table.routetable_main.id}"
    }

    resource "aws_route_table_association" "routetable_private_utility_z0_association_nodes_z0" {
      subnet_id      = "${aws_subnet.nodes_z0.id}"
      route_table_id = "${aws_route_table.routetable_private_utility_z0.id}"
    }


    //=====================================================================
    //= IAM instance profiles
    //=====================================================================

    resource "aws_iam_role" "bastions" {
      name = "foo-bastions"
      path = "/"

      assume_role_policy = <<EOF
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Principal": {
            "Service": "ec2.amazonaws.com"
          },
          "Action": "sts:AssumeRole"
        }
      ]
    }
    EOF
    }

    resource "aws_iam_instance_profile" "bastions" {
      name = "foo-bastions"
      role = "${aws_iam_role.bastions.name}"
    }

    resource "aws_iam_role_policy" "bastions" {
      name = "foo-bastions"
      role = "${aws_iam_role.bastions.id}"

      policy = <<EOF
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "ec2:DescribeRegions"
          ],
          "Resource": [
            "*"
          ]
        }
      ]
    }
    EOF
    }

    resource "aws_iam_role" "nodes" {
      name = "foo-nodes"
      path = "/"

      assume_role_policy = <<EOF
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Principal": {
            "Service": "ec2.amazonaws.com"
          },
          "Action": "sts:AssumeRole"
        }
      ]
    }
    EOF
    }

    resource "aws_iam_instance_profile" "nodes" {
      name = "foo-nodes"
      role = "${aws_iam_role.nodes.name}"
    }

    resource "aws_iam_role_policy" "nodes" {
      name = "foo-nodes"
      role = "${aws_iam_role.nodes.id}"

      policy = <<EOF
    {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": [
            "ec2:DescribeInstances"
          ],
          "Resource": [
            "*"
          ]
        },
        {
          "Effect": "Allow",
          "Action": [
            "ecr:GetAuthorizationToken",
            "ecr:BatchCheckLayerAvailability",
            "ecr:GetDownloadUrlForLayer",
            "ecr:GetRepositoryPolicy",
            "ecr:DescribeRepositories",
            "ecr:ListImages",
            "ecr:BatchGetImage"
          ],
          "Resource": [
            "*"
          ]
        }
      ]
    }
    EOF
    }

    //=====================================================================
    //= EC2 Key Pair
    //=====================================================================

    resource "aws_key_pair" "kubernetes" {
      key_name   = "foo-ssh-publickey"
      public_key = "ssh-rsa bar"
    }

    //=====================================================================
    //= Output variables
    //=====================================================================

    output "vpc_id" {
      value = "${aws_vpc.vpc.id}"
    }

    output "iamInstanceProfileNodes" {
      value = "${aws_iam_instance_profile.nodes.name}"
    }

    output "keyName" {
      value = "${aws_key_pair.kubernetes.key_name}"
    }

    output "security_group_nodes" {
      value = "${aws_security_group.nodes.id}"
    }

    output "nodes_role_arn" {
      value = "${aws_iam_role.nodes.arn}"
    }

Debug Output

Not applicable

Panic Output

Not applicable

Expected Behavior

Actual Behavior

Initializing the backend...

Initializing provider plugins...

The following providers do not have any version constraints in configuration,
so the latest version was installed.

To prevent automatic upgrades to new major versions that may contain breaking
changes, it is recommended to add version = "..." constraints to the
corresponding provider blocks in configuration, with the constraint strings
suggested below.

* provider.aws: version = "~> 3.54"

Terraform has been successfully initialized!

You may now begin working with Terraform. Try running "terraform plan" to see
any changes that are required for your infrastructure. All Terraform commands
should now work.

If you ever set or change modules or backend configuration for Terraform,
rerun this command to reinitialize your working directory. If you forget, other
commands will detect it and remind you to do so if necessary.

aws_key_pair.kubernetes: Creating...
### Creation logs are omitted

Error: Provider produced inconsistent result after apply
When applying changes to aws_internet_gateway.igw, provider
"registry.terraform.io/-/aws" produced an unexpected new value for was
present, but now absent.

This is a bug in the provider, which should be reported in the provider's own
issue tracker.

Steps to Reproduce

1. terraform apply the configuration from above

2. Ensure that some times the apply fails with

Error: Provider produced inconsistent result after apply
When applying changes to aws_internet_gateway.igw, provider
"registry.terraform.io/-/aws" produced an unexpected new value for was
present, but now absent.

This is a bug in the provider, which should be reported in the provider's own
issue tracker.

Important Factoids

References

• Implement d.IsNewResource() Checks In Resource Read Functions #16796 - the umbrella issue
• resource/aws_subnet: an unexpected new value for was present, but now absent. #12829 - reference to the same issue for aws_subnet

[github-actions]

This functionality has been released in v3.65.0 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 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.