v1.0.4

What's New

Network Enhancements

• CIDR blocks in subnet labels — subnets now show their CIDR block (e.g. 10.0.1.0/24) instead of just the type
• Route table names — subnet boxes display the associated route table name as RT: name
• Network flow connections — new green connection type showing IGW ↔ NAT Gateway routing
• Security group connections — new orange dotted connection type showing SG-to-SG ingress rules between services

Resource Aggregation

• Aggregation chips — group identical service types (3+ instances) into a single node with count badge
• Click-to-inspect popover — click aggregate nodes to see individual resources and highlight their connections
• Connection type filter — toggle visibility of each connection type (Data Flow, Trigger, Encryption, Network Flow, Security Rule, Reference)

Deep Reference Scanning

• Parsed per-resource references (e.g. Lambda env vars pointing to specific S3 buckets) now supersede generic YAML logical connections
• More accurate connection highlighting when inspecting individual resources in aggregate popovers

Bug Fixes

• Fix PNG/JPG export ("operation is insecure" canvas taint error) — now uses base64 data URI
• Fix aggregate node drag getting stuck in drag mode
• Fix EC2 aggregate nodes being ejected from VPC on click
• Fix global services draggable into VPC / IGW and SG draggable into subnets
• Fix SG showing 0 connections (added vpc_security_group_ids and security_groups extractors)
• Fix port label coercion for HCL2 string values

Legend & UI

• Updated legend with all 6 connection types
• Connection filter panel below diagram
• Aggregation panel with toggle chips

v1.0.3

Bug Fixes

• Fix drag-and-drop bug where resources would disappear when clicked
• Add null check for getScreenCTM() in drag handlers
• Validate coordinates against NaN to prevent elements moving off-screen

Code Quality

• Remove ~250 lines of dead code (unused AGGREGATION_RULES and LOGICAL_CONNECTIONS)
• Fix service name inconsistencies in layout.py (security_groups, secrets_manager)
• Replace print() statements with proper logging
• Update author info in pyproject.toml

v1.0.2

terraformgraph v1.0.2

Changes

• -o/--output is now optional - defaults to diagram.html
• Updated documentation and examples

Installation

pip install terraformgraph

Quick Start

# Just point to your Terraform directory - that's it!
terraformgraph -t ./infrastructure

This generates diagram.html in the current directory.

v1.0.1

terraformgraph v1.0.1

Package renamed from tfgraph to terraformgraph.

Changes

• Package renamed from tfgraph to terraformgraph
• Command is now terraformgraph instead of tfgraph
• All imports updated to terraformgraph.*
• Configuration directory changed to ~/.terraformgraph/

Installation

pip install terraformgraph

Quick Start

terraformgraph -t ./infrastructure -o diagram.html

Migration from tfgraph

If you previously installed tfgraph:

pip uninstall tfgraph
pip install terraformgraph

Update your scripts to use terraformgraph command instead of tfgraph.

v1.0.0

tfgraph v1.0.0 - Initial Release

Generate interactive architecture diagrams from your Terraform configurations.

Features

• Automatic parsing of Terraform HCL files
• Smart resource grouping into logical services (ECS, RDS, S3, etc.)
• Relationship detection based on resource references
• Interactive HTML output with drag-and-drop positioning
• PNG/JPG export directly from the browser
• 300+ AWS resource types supported
• Bundled AWS official icons

Installation

pip install tfgraph

Quick Start

tfgraph -t ./infrastructure -o diagram.html

Documentation

See the README for full documentation.