terraform-plan-parser

name

terraform-plan-parser

description

Parse and analyse terraform plan plain-text output to classify resource changes, detect unintended mutations, and produce structured reports. Use when reviewing terraform plan output for import safety, drift detection, or plan validation. Triggers on "parse plan", "plan analysis", "plan diff", "classify changes", "import validation", "zero-change check", or any post-hoc analysis of terraform plan stdout.

Terraform Plan Parser

Parse terraform plan -no-color plain-text output into structured data for programmatic analysis. Designed for TFC remote backends where -json and -out= are unavailable.

Parser location

The parser is a standalone Python module. Set PLAN_PARSER_DIR to its location:

# Example — adjust to your repo layout
export PLAN_PARSER_DIR="$HOME/your-repo/src/framework/parsers"

Import path:

import sys
sys.path.insert(0, os.environ["PLAN_PARSER_DIR"])
from terraform_plain_text_plan_parser import TerraformPlainTextPlanParser

Quick start

1. Capture plan output

PLAN_DIR=$(mktemp -d)
cd iac/{env}
terraform plan -no-color 2>&1 | tee "$PLAN_DIR/{env}-plan.txt"

Always use . The parser strips ANSI codes but clean input is faster.