Run Terraform plan or get a plan output, show only resources names to be changed and color the relevant parts

tf_plan_simple_color.sh

#!/bin/bash

set -e

if [ $# -eq 0 ]; then
  plan_file=$(mktemp)
  terraform plan -no-color > "$plan_file"
else
  if [ ! -e "$1" ]; then
    echo "File '$1' does not exist. Aborting"
    exit 1
  fi
  plan_file="$1"
fi

echo "# Plan file: $plan_file"

ag "^  #.* will be" "$plan_file" | \
  sed -r 's/^[0-9]+: *# //' | \
  sed 's/updated/\x1B[93mupdated\x1B[0m/g;s/destroyed/\x1B[91mdestroyed\x1B[0m/g;s/created/\x1B[92mcreated\x1B[0m/g;s/read/\x1B[1mread\x1B[0m/g'