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[GH-ISSUE #109] Terravision fails with "Unhandled error: <class 'TypeError'>, can only concatenate str (not "bool") to str" #55

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opened 2026-05-06 12:36:48 +02:00 by BreizhHardware · 4 comments
BreizhHardware commented 2026-05-06 12:36:48 +02:00
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Originally created by @BaffledJimmy on GitHub (Mar 7, 2024).
Original GitHub issue: https://github.com/patrickchugh/terravision/issues/109

Hello,

I am having a problem running Terravision against some TF that creates an EC2, VPC, subnet, routing table, internet gateway and a SG with some CIDRs in it. Basically an EC2 in AWS and the supporting stuff it needs to get online / be reachable. I also have a count argument so I can make multiple EC2s at the same time. TF also templates out an Ansible inventory via a local-file template. Don't think makes any odds, but on M1 MacBook.

Am using code cloned this morning so current version.
Environment:

pip list
Package                   Version
------------------------- --------
altgraph                  0.17.4
certifi                   2024.2.2
charset-normalizer        3.3.2
click                     8.1.3
debugpy                   1.5.1
gitdb                     4.0.11
GitPython                 3.1.31
graphviz                  0.20.1
idna                      3.6
ipaddr                    2.2.0
lark                      1.1.9
macholib                  1.16.3
numpy                     1.26.4
packaging                 23.2
pip                       24.0
pyinstaller               6.4.0
pyinstaller-hooks-contrib 2024.2
python-hcl2               4.3.0
PyYAML                    6.0.1
requests                  2.28.2
setuptools                65.6.3
smmap                     5.0.1
tqdm                      4.65.0
urllib3                   1.26.18


 python --version
Python 3.12.2

(venv) ➜ Terraform git:(main) ✗ tree
.
├── ansible_inventory.tpl
├── instance.tf
├── outputs.tf
├── providers.tf
├── security_group.tf
├── variables.tf
└── vpc.tf

1 directory, 7 files


I am running Terravision inside a venv so that I can manage the pip dependencies, but also get the same error when running on a raw Ubuntu docker container.

The exact error is:

./terravision draw --source ~/Dev/Project/Terraform --debug

TypeError: can only concatenate str (not "bool") to str


A full command output is here:

Preflight check..
dot command detected: /usr/bin/dot
gvpr command detected: /usr/bin/gvpr
git command detected: /usr/bin/git
terraform command detected: /usr/bin/terraform

Checking Terraform Version...

Initializing the backend...

Initializing provider plugins...

  • Reusing previous version of hashicorp/aws from the dependency lock file
  • Installing hashicorp/aws v5.39.1...
  • Installed hashicorp/aws v5.39.1 (signed by HashiCorp)

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.

Terraform v1.7.4

Initalising workspace: default

Generating Terraform Plan..

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:

  • create

Terraform will perform the following actions:

aws_instance.EC2Workstation[0] will be created

  • resource "aws_instance" "EC2Workstation" {

    • ami = "ami-0d18e50ca22537278"

    • arn = (known after apply)

    • associate_public_ip_address = true

    • availability_zone = (known after apply)

    • cpu_core_count = (known after apply)

    • cpu_threads_per_core = (known after apply)

    • disable_api_stop = (known after apply)

    • disable_api_termination = (known after apply)

    • ebs_optimized = (known after apply)

    • get_password_data = false

    • host_id = (known after apply)

    • host_resource_group_arn = (known after apply)

    • iam_instance_profile = (known after apply)

    • id = (known after apply)

    • instance_initiated_shutdown_behavior = (known after apply)

    • instance_lifecycle = (known after apply)

    • instance_state = (known after apply)

    • instance_type = "t2.medium"

    • ipv6_address_count = (known after apply)

    • ipv6_addresses = (known after apply)

    • key_name = "SSHKey"

    • monitoring = (known after apply)

    • outpost_arn = (known after apply)

    • password_data = (known after apply)

    • placement_group = (known after apply)

    • placement_partition_number = (known after apply)

    • primary_network_interface_id = (known after apply)

    • private_dns = (known after apply)

    • private_ip = (known after apply)

    • public_dns = (known after apply)

    • public_ip = (known after apply)

    • secondary_private_ips = (known after apply)

    • security_groups = (known after apply)

    • source_dest_check = true

    • spot_instance_request_id = (known after apply)

    • subnet_id = (known after apply)

    • tags = {

      • "Name" = "EC2Workstation-001"
        }

    • tags_all = {

      • "Name" = "EC2Workstation-001"
        }

    • tenancy = (known after apply)

    • user_data = (known after apply)

    • user_data_projecte64 = (known after apply)

    • user_data_replace_on_change = false

    • vpc_security_group_ids = (known after apply)

    • root_block_device {

      • delete_on_termination = true
      • device_name = (known after apply)
      • encrypted = true
      • iops = (known after apply)
      • kms_key_id = (known after apply)
      • tags_all = (known after apply)
      • throughput = (known after apply)
      • volume_id = (known after apply)
      • volume_size = 8
      • volume_type = (known after apply)
        }
        }

aws_internet_gateway.project_internetgateway will be created

  • resource "aws_internet_gateway" "project_internetgateway" {
    • arn = (known after apply)
    • id = (known after apply)
    • owner_id = (known after apply)
    • tags = {
      • "Name" = "MyInternetGateway"
        }
    • tags_all = {
      • "Name" = "MyInternetGateway"
        }
    • vpc_id = (known after apply)
      }

aws_route_table.project_route_table will be created

  • resource "aws_route_table" "project_route_table" {
    • arn = (known after apply)
    • id = (known after apply)
    • owner_id = (known after apply)
    • propagating_vgws = (known after apply)
    • route = [
      • {
        • carrier_gateway_id = ""
        • cidr_block = "0.0.0.0/0"
        • core_network_arn = ""
        • destination_prefix_list_id = ""
        • egress_only_gateway_id = ""
        • gateway_id = (known after apply)
        • ipv6_cidr_block = ""
        • local_gateway_id = ""
        • nat_gateway_id = ""
        • network_interface_id = ""
        • transit_gateway_id = ""
        • vpc_endpoint_id = ""
        • vpc_peering_connection_id = ""
          },
          ]
    • tags = {
      • "Name" = "project_RouteTable"
        }
    • tags_all = {
      • "Name" = "project_RouteTable"
        }
    • vpc_id = (known after apply)
      }

aws_route_table_association.a will be created

  • resource "aws_route_table_association" "a" {
    • id = (known after apply)
    • route_table_id = (known after apply)
    • subnet_id = (known after apply)
      }

aws_security_group.SG_projectFirewalling will be created

  • resource "aws_security_group" "SG_projectFirewalling" {
    • arn = (known after apply)
    • description = "Allow specific access for EC2 instances"
    • egress = [
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 0
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "-1"
        • security_groups = []
        • self = false
        • to_port = 0
          },
          ]
    • id = (known after apply)
    • ingress = [
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = -1
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "icmp"
        • security_groups = []
        • self = false
        • to_port = -1
          },
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 443
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 443
          },
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 53
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 53
          },
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 53
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "udp"
        • security_groups = []
        • self = false
        • to_port = 53
          },
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 80
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 80
          },
      • {
        • cidr_blocks = [
          • "0.0.0.0/0",
            ]
        • description = ""
        • from_port = 8443
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 8443
          },
      • {
        • cidr_blocks = [
          [redacted list of CIDRs]]
          ]
        • description = ""
        • from_port = 22
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 22
          },
      • {
        • cidr_blocks = [
          [redacted list of CIDRs]]
          ]
        • description = ""
        • from_port = 3389
        • ipv6_cidr_blocks = []
        • prefix_list_ids = []
        • protocol = "tcp"
        • security_groups = []
        • self = false
        • to_port = 3389
          },
          ]
    • name = "SG-projectFirewalling"
    • name_prefix = (known after apply)
    • owner_id = (known after apply)
    • revoke_rules_on_delete = false
    • tags_all = (known after apply)
    • vpc_id = (known after apply)
      }

aws_subnet.project_subnet will be created

  • resource "aws_subnet" "project_subnet" {
    • arn = (known after apply)
    • assign_ipv6_address_on_creation = false
    • availability_zone = (known after apply)
    • availability_zone_id = (known after apply)
    • cidr_block = "10.0.1.0/24"
    • enable_dns64 = false
    • enable_resource_name_dns_a_record_on_launch = false
    • enable_resource_name_dns_aaaa_record_on_launch = false
    • id = (known after apply)
    • ipv6_cidr_block_association_id = (known after apply)
    • ipv6_native = false
    • map_public_ip_on_launch = true
    • owner_id = (known after apply)
    • private_dns_hostname_type_on_launch = (known after apply)
    • tags = {
      • "Name" = "project_subnet"
        }
    • tags_all = {
      • "Name" = "project_subnet"
        }
    • vpc_id = (known after apply)
      }

aws_vpc.project_vpc will be created

  • resource "aws_vpc" "project_vpc" {
    • arn = (known after apply)
    • cidr_block = "10.0.0.0/16"
    • default_network_acl_id = (known after apply)
    • default_route_table_id = (known after apply)
    • default_security_group_id = (known after apply)
    • dhcp_options_id = (known after apply)
    • enable_dns_hostnames = true
    • enable_dns_support = true
    • enable_network_address_usage_metrics = (known after apply)
    • id = (known after apply)
    • instance_tenancy = "default"
    • ipv6_association_id = (known after apply)
    • ipv6_cidr_block = (known after apply)
    • ipv6_cidr_block_network_border_group = (known after apply)
    • main_route_table_id = (known after apply)
    • owner_id = (known after apply)
    • tags = {
      • "Name" = "project_vpc"
        }
    • tags_all = {
      • "Name" = "project_vpc"
        }
        }

Plan: 7 to add, 0 to change, 0 to destroy.

Changes to Outputs:

  • instance_names = [
    • "EC2Workstation-001",
      ]
  • instance_public_ips = [
    • (known after apply),
      ]

─────────────────────────────────────────────────────────────────────────────

Saved the plan to: /tmp/tfplan.bin

To perform exactly these actions, run the following command to apply:
terraform apply "/tmp/tfplan.bin"

Analysing plan..

Unprocessed terraform graph dictionary:

{
"aws_instance.EC2Workstation1": [],
"aws_internet_gateway.project_internetgateway": [
"aws_route_table.project_route_table"
],
"aws_route_table.project_route_table": [
"aws_route_table_association.a"
],
"aws_route_table_association.a": [],
"aws_security_group.SG_projectFirewalling": [
"aws_instance.EC2Workstation1"
],
"aws_subnet.project_subnet": [
"aws_instance.EC2Workstation~1",
"aws_route_table_association.a"
],
"aws_vpc.project_vpc": [
"aws_internet_gateway.project_internetgateway",
"aws_security_group.SG_projectFirewalling",
"aws_subnet.project_subnet",
"aws_subnet.project_subnet"
]
}

Parsing Terraform Source Files..
Added Source Location: /tmp/EC2Workstation/Terraform
Parsing /tmp/EC2Workstation/Terraform/outputs.tf
Found 2 output stanza(s)
Parsing /tmp/EC2Workstation/Terraform/security_group.tf
Found 1 resource stanza(s)
Parsing /tmp/EC2Workstation/Terraform/providers.tf
Parsing /tmp/EC2Workstation/Terraform/variables.tf
Found 5 variable stanza(s)
Parsing /tmp/EC2Workstation/Terraform/instance.tf
Found 1 resource stanza(s)
Parsing /tmp/EC2Workstation/Terraform/vpc.tf
Found 5 resource stanza(s)

Processing variables..

Processing resources..
aws_security_group.SG_projectFirewalling
aws_instance.EC2Workstation
aws_vpc.project_vpc
aws_internet_gateway.project_internetgateway
aws_subnet.project_subnet
aws_route_table.project_route_table
aws_route_table_association.a

Checking for additional links between 7 resources..
aws_vpc.project_vpc --> aws_route_table.project_route_table

Unhandled error: <class 'TypeError'>, can only concatenate str (not "bool") to str, <traceback object at 0xffff91ddcbc0>


The Dockerfile if needed is also here (adapted from a PR):

Use the latest Ubuntu base image

FROM ubuntu:latest

Install Graphviz and other dependencies

RUN apt-get update && apt-get install -y
graphviz
git
python3-pip
python-is-python3
gnupg
software-properties-common
wget
&& wget -O- https://apt.releases.hashicorp.com/gpg | gpg --dearmor | tee /usr/share/keyrings/hashicorp-archive-keyring.gpg > /dev/null
&& echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] https://apt.releases.hashicorp.com $(. /etc/os-release && echo $VERSION_CODENAME) main" | tee /etc/apt/sources.list.d/hashicorp.list
&& apt-get update
&& apt-get install -y terraform
&& rm -rf /var/lib/apt/lists/*

Set the working directory to the Terravision directory

WORKDIR /app/

Install Terravision dependencies from requirements.txt

COPY . .
RUN pip install -r requirements.txt

Grant execution permission to the terravision script

RUN chmod +x terravision

Default command to be executed when the container starts

CMD ["./terravision", "draw", "--source", "/tmp/Project/Terraform"]


And the container is built and run with:

docker build . --platform=linux/arm64 --tag terravision:latest --no-cache
docker run -v $(pwd)/../Project/Terraform:/tmp/Project/Terraform/ -e AWS_ACCESS_KEY_ID="blah" -e AWS_SECRET_ACCESS_KEY="blah" -e AWS_SESSION_TOKEN="blah" terravision:latest

Originally created by @BaffledJimmy on GitHub (Mar 7, 2024). Original GitHub issue: https://github.com/patrickchugh/terravision/issues/109 Hello, I am having a problem running Terravision against some TF that creates an EC2, VPC, subnet, routing table, internet gateway and a SG with some CIDRs in it. Basically an EC2 in AWS and the supporting stuff it needs to get online / be reachable. I also have a count argument so I can make multiple EC2s at the same time. TF also templates out an Ansible inventory via a local-file template. Don't think makes any odds, but on M1 MacBook. Am using code cloned this morning so current version. Environment: ``` pip list Package Version ------------------------- -------- altgraph 0.17.4 certifi 2024.2.2 charset-normalizer 3.3.2 click 8.1.3 debugpy 1.5.1 gitdb 4.0.11 GitPython 3.1.31 graphviz 0.20.1 idna 3.6 ipaddr 2.2.0 lark 1.1.9 macholib 1.16.3 numpy 1.26.4 packaging 23.2 pip 24.0 pyinstaller 6.4.0 pyinstaller-hooks-contrib 2024.2 python-hcl2 4.3.0 PyYAML 6.0.1 requests 2.28.2 setuptools 65.6.3 smmap 5.0.1 tqdm 4.65.0 urllib3 1.26.18 python --version Python 3.12.2 ``` (venv) ➜ Terraform git:(main) ✗ tree . ├── ansible_inventory.tpl ├── instance.tf ├── outputs.tf ├── providers.tf ├── security_group.tf ├── variables.tf └── vpc.tf 1 directory, 7 files ``` I am running Terravision inside a venv so that I can manage the pip dependencies, but also get the same error when running on a raw Ubuntu docker container. The exact error is: ``` ./terravision draw --source ~/Dev/Project/Terraform --debug <rest of output> TypeError: can only concatenate str (not "bool") to str ``` A full command output is here: ``` Preflight check.. dot command detected: /usr/bin/dot gvpr command detected: /usr/bin/gvpr git command detected: /usr/bin/git terraform command detected: /usr/bin/terraform Checking Terraform Version... Initializing the backend... Initializing provider plugins... - Reusing previous version of hashicorp/aws from the dependency lock file - Installing hashicorp/aws v5.39.1... - Installed hashicorp/aws v5.39.1 (signed by HashiCorp) 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. Terraform v1.7.4 Initalising workspace: default Generating Terraform Plan.. Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following symbols: + create Terraform will perform the following actions: # aws_instance.EC2Workstation[0] will be created + resource "aws_instance" "EC2Workstation" { + ami = "ami-0d18e50ca22537278" + arn = (known after apply) + associate_public_ip_address = true + availability_zone = (known after apply) + cpu_core_count = (known after apply) + cpu_threads_per_core = (known after apply) + disable_api_stop = (known after apply) + disable_api_termination = (known after apply) + ebs_optimized = (known after apply) + get_password_data = false + host_id = (known after apply) + host_resource_group_arn = (known after apply) + iam_instance_profile = (known after apply) + id = (known after apply) + instance_initiated_shutdown_behavior = (known after apply) + instance_lifecycle = (known after apply) + instance_state = (known after apply) + instance_type = "t2.medium" + ipv6_address_count = (known after apply) + ipv6_addresses = (known after apply) + key_name = "SSHKey" + monitoring = (known after apply) + outpost_arn = (known after apply) + password_data = (known after apply) + placement_group = (known after apply) + placement_partition_number = (known after apply) + primary_network_interface_id = (known after apply) + private_dns = (known after apply) + private_ip = (known after apply) + public_dns = (known after apply) + public_ip = (known after apply) + secondary_private_ips = (known after apply) + security_groups = (known after apply) + source_dest_check = true + spot_instance_request_id = (known after apply) + subnet_id = (known after apply) + tags = { + "Name" = "EC2Workstation-001" } + tags_all = { + "Name" = "EC2Workstation-001" } + tenancy = (known after apply) + user_data = (known after apply) + user_data_projecte64 = (known after apply) + user_data_replace_on_change = false + vpc_security_group_ids = (known after apply) + root_block_device { + delete_on_termination = true + device_name = (known after apply) + encrypted = true + iops = (known after apply) + kms_key_id = (known after apply) + tags_all = (known after apply) + throughput = (known after apply) + volume_id = (known after apply) + volume_size = 8 + volume_type = (known after apply) } } # aws_internet_gateway.project_internetgateway will be created + resource "aws_internet_gateway" "project_internetgateway" { + arn = (known after apply) + id = (known after apply) + owner_id = (known after apply) + tags = { + "Name" = "MyInternetGateway" } + tags_all = { + "Name" = "MyInternetGateway" } + vpc_id = (known after apply) } # aws_route_table.project_route_table will be created + resource "aws_route_table" "project_route_table" { + arn = (known after apply) + id = (known after apply) + owner_id = (known after apply) + propagating_vgws = (known after apply) + route = [ + { + carrier_gateway_id = "" + cidr_block = "0.0.0.0/0" + core_network_arn = "" + destination_prefix_list_id = "" + egress_only_gateway_id = "" + gateway_id = (known after apply) + ipv6_cidr_block = "" + local_gateway_id = "" + nat_gateway_id = "" + network_interface_id = "" + transit_gateway_id = "" + vpc_endpoint_id = "" + vpc_peering_connection_id = "" }, ] + tags = { + "Name" = "project_RouteTable" } + tags_all = { + "Name" = "project_RouteTable" } + vpc_id = (known after apply) } # aws_route_table_association.a will be created + resource "aws_route_table_association" "a" { + id = (known after apply) + route_table_id = (known after apply) + subnet_id = (known after apply) } # aws_security_group.SG_projectFirewalling will be created + resource "aws_security_group" "SG_projectFirewalling" { + arn = (known after apply) + description = "Allow specific access for EC2 instances" + egress = [ + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 0 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "-1" + security_groups = [] + self = false + to_port = 0 }, ] + id = (known after apply) + ingress = [ + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = -1 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "icmp" + security_groups = [] + self = false + to_port = -1 }, + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 443 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 443 }, + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 53 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 53 }, + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 53 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "udp" + security_groups = [] + self = false + to_port = 53 }, + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 80 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 80 }, + { + cidr_blocks = [ + "0.0.0.0/0", ] + description = "" + from_port = 8443 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 8443 }, + { + cidr_blocks = [ [redacted list of CIDRs]] ] + description = "" + from_port = 22 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 22 }, + { + cidr_blocks = [ [redacted list of CIDRs]] ] + description = "" + from_port = 3389 + ipv6_cidr_blocks = [] + prefix_list_ids = [] + protocol = "tcp" + security_groups = [] + self = false + to_port = 3389 }, ] + name = "SG-projectFirewalling" + name_prefix = (known after apply) + owner_id = (known after apply) + revoke_rules_on_delete = false + tags_all = (known after apply) + vpc_id = (known after apply) } # aws_subnet.project_subnet will be created + resource "aws_subnet" "project_subnet" { + arn = (known after apply) + assign_ipv6_address_on_creation = false + availability_zone = (known after apply) + availability_zone_id = (known after apply) + cidr_block = "10.0.1.0/24" + enable_dns64 = false + enable_resource_name_dns_a_record_on_launch = false + enable_resource_name_dns_aaaa_record_on_launch = false + id = (known after apply) + ipv6_cidr_block_association_id = (known after apply) + ipv6_native = false + map_public_ip_on_launch = true + owner_id = (known after apply) + private_dns_hostname_type_on_launch = (known after apply) + tags = { + "Name" = "project_subnet" } + tags_all = { + "Name" = "project_subnet" } + vpc_id = (known after apply) } # aws_vpc.project_vpc will be created + resource "aws_vpc" "project_vpc" { + arn = (known after apply) + cidr_block = "10.0.0.0/16" + default_network_acl_id = (known after apply) + default_route_table_id = (known after apply) + default_security_group_id = (known after apply) + dhcp_options_id = (known after apply) + enable_dns_hostnames = true + enable_dns_support = true + enable_network_address_usage_metrics = (known after apply) + id = (known after apply) + instance_tenancy = "default" + ipv6_association_id = (known after apply) + ipv6_cidr_block = (known after apply) + ipv6_cidr_block_network_border_group = (known after apply) + main_route_table_id = (known after apply) + owner_id = (known after apply) + tags = { + "Name" = "project_vpc" } + tags_all = { + "Name" = "project_vpc" } } Plan: 7 to add, 0 to change, 0 to destroy. Changes to Outputs: + instance_names = [ + "EC2Workstation-001", ] + instance_public_ips = [ + (known after apply), ] ───────────────────────────────────────────────────────────────────────────── Saved the plan to: /tmp/tfplan.bin To perform exactly these actions, run the following command to apply: terraform apply "/tmp/tfplan.bin" Analysing plan.. Unprocessed terraform graph dictionary: { "aws_instance.EC2Workstation~1": [], "aws_internet_gateway.project_internetgateway": [ "aws_route_table.project_route_table" ], "aws_route_table.project_route_table": [ "aws_route_table_association.a" ], "aws_route_table_association.a": [], "aws_security_group.SG_projectFirewalling": [ "aws_instance.EC2Workstation~1" ], "aws_subnet.project_subnet": [ "aws_instance.EC2Workstation~1", "aws_route_table_association.a" ], "aws_vpc.project_vpc": [ "aws_internet_gateway.project_internetgateway", "aws_security_group.SG_projectFirewalling", "aws_subnet.project_subnet", "aws_subnet.project_subnet" ] } Parsing Terraform Source Files.. Added Source Location: /tmp/EC2Workstation/Terraform Parsing /tmp/EC2Workstation/Terraform/outputs.tf Found 2 output stanza(s) Parsing /tmp/EC2Workstation/Terraform/security_group.tf Found 1 resource stanza(s) Parsing /tmp/EC2Workstation/Terraform/providers.tf Parsing /tmp/EC2Workstation/Terraform/variables.tf Found 5 variable stanza(s) Parsing /tmp/EC2Workstation/Terraform/instance.tf Found 1 resource stanza(s) Parsing /tmp/EC2Workstation/Terraform/vpc.tf Found 5 resource stanza(s) Processing variables.. Processing resources.. aws_security_group.SG_projectFirewalling aws_instance.EC2Workstation aws_vpc.project_vpc aws_internet_gateway.project_internetgateway aws_subnet.project_subnet aws_route_table.project_route_table aws_route_table_association.a Checking for additional links between 7 resources.. aws_vpc.project_vpc --> aws_route_table.project_route_table Unhandled error: <class 'TypeError'>, can only concatenate str (not "bool") to str, <traceback object at 0xffff91ddcbc0> ``` The Dockerfile if needed is also here (adapted from a PR): ``` # Use the latest Ubuntu base image FROM ubuntu:latest # Install Graphviz and other dependencies RUN apt-get update && apt-get install -y \ graphviz \ git \ python3-pip \ python-is-python3 \ gnupg \ software-properties-common \ wget \ && wget -O- https://apt.releases.hashicorp.com/gpg | gpg --dearmor | tee /usr/share/keyrings/hashicorp-archive-keyring.gpg > /dev/null \ && echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] https://apt.releases.hashicorp.com $(. /etc/os-release && echo $VERSION_CODENAME) main" | tee /etc/apt/sources.list.d/hashicorp.list \ && apt-get update \ && apt-get install -y terraform \ && rm -rf /var/lib/apt/lists/* # Set the working directory to the Terravision directory WORKDIR /app/ # Install Terravision dependencies from requirements.txt COPY . . RUN pip install -r requirements.txt # Grant execution permission to the terravision script RUN chmod +x terravision # Default command to be executed when the container starts CMD ["./terravision", "draw", "--source", "/tmp/Project/Terraform"] ``` And the container is built and run with: ``` docker build . --platform=linux/arm64 --tag terravision:latest --no-cache docker run -v $(pwd)/../Project/Terraform:/tmp/Project/Terraform/ -e AWS_ACCESS_KEY_ID="blah" -e AWS_SECRET_ACCESS_KEY="blah" -e AWS_SESSION_TOKEN="blah" terravision:latest ```
BreizhHardware commented 2026-05-06 12:36:49 +02:00
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@PaulRoze commented on GitHub (Jun 30, 2024):

I got the same issue 😞

Checking for additional links between 16 resources..
Unhandled error: <class 'TypeError'>, can only concatenate str (not "bool") to str, <traceback object at 0x11f9f3980>
<!-- gh-comment-id:2198558010 --> @PaulRoze commented on GitHub (Jun 30, 2024): I got the same issue 😞 ``` Checking for additional links between 16 resources.. Unhandled error: <class 'TypeError'>, can only concatenate str (not "bool") to str, <traceback object at 0x11f9f3980> ```
BreizhHardware commented 2026-05-06 12:36:50 +02:00
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@patrickchugh commented on GitHub (Apr 27, 2026):

@PaulRoze @BaffledJimmy The code has changed significantly since this issue was opened. Can I close the case now?

<!-- gh-comment-id:4325151867 --> @patrickchugh commented on GitHub (Apr 27, 2026): @PaulRoze @BaffledJimmy The code has changed significantly since this issue was opened. Can I close the case now?
BreizhHardware commented 2026-05-06 12:36:50 +02:00
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@BaffledJimmy commented on GitHub (Apr 27, 2026):

All good from my end!

<!-- gh-comment-id:4325201114 --> @BaffledJimmy commented on GitHub (Apr 27, 2026): All good from my end!
BreizhHardware commented 2026-05-06 12:36:50 +02:00
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@PaulRoze commented on GitHub (Apr 27, 2026):

I don't have any pending actions on my end. Please feel free to close the case whenever you're ready. Thank you!

<!-- gh-comment-id:4325287986 --> @PaulRoze commented on GitHub (Apr 27, 2026): I don't have any pending actions on my end. Please feel free to close the case whenever you're ready. Thank you!
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