terraform-azurerm-set-diff-analyzer
We need to translate the given text from English to Russian, preserving the name "terraform-azurerm-set-diff-analyzer" if it appears. The instruction says: "Do not include the name unless it appears in the source text." The name does appear in the source text? Let's check: The source text starts with "Identify false-positive diffs in Terraform AzureRM plans caused by Set-type attribute ordering. Analyzes terraform plan JSON output to distinguish spurious diffs (element reordering in Sets) from actual resource changes Targets AzureRM resources with Set-type attributes: Application Gateway, Load Balancer, NSG, Firewall, Front Door, and others Requires Python 3.8+ and uses only standard library; integrates into CI/CD pipelines with configurable output formats and exit codes Helps reviewers..." The name "terraform-azurerm-set-diff-analyzer" is not explicitly in the source text. The source text describes the tool but does not mention its name. So we should not add the name. The instruction says "Do not include the name
npx skills add https://github.com/github/awesome-copilot --skill terraform-azurerm-set-diff-analyzerTerraform AzureRM Set Diff Analyzer
A skill to identify "false-positive diffs" in Terraform plans caused by AzureRM Provider's Set-type attributes and distinguish them from actual changes.
When to Use
terraform planshows many changes, but you only added/removed a single element- Application Gateway, Load Balancer, NSG, etc. show "all elements changed"
- You want to automatically filter false-positive diffs in CI/CD
Background
Terraform's Set type compares by position rather than by key, so when adding or removing elements, all elements appear as "changed". This is a general Terraform issue, but it's particularly noticeable with AzureRM resources that heavily use Set-type attributes like Application Gateway, Load Balancer, and NSG.
These "false-positive diffs" don't actually affect the resources, but they make reviewing terraform plan output difficult.
Prerequisites
- Python 3.8+
If Python is unavailable, install via your package manager (e.g., apt install python3, brew install python3) or from python.org.
Basic Usage
# 1. Generate plan JSON output
terraform plan -out=plan.tfplan
terraform show -json plan.tfplan > plan.json
# 2. Analyze
python scripts/analyze_plan.py plan.json
Troubleshooting
python: command not found: Usepython3instead, or install PythonModuleNotFoundError: Script uses only standard library; ensure Python 3.8+
Detailed Documentation
- scripts/README.md - All options, output formats, exit codes, CI/CD examples
- references/azurerm_set_attributes.md - Supported resources and attributes