Terragrunt shell script to get layered deployments

tg.sh

#!/bin/bash

ENVS=("staging" "production")
CMD=("plan" "apply" "destroy" "init")
MGROUPS=("vpc" "eks" "eks-apps")

env=$1
cmd=$2
group=$3
args=${@:4}


if [[ ! $(echo ${MGROUPS[@]} | fgrep -w $group) ]]
then
  unset group
  args=${@:3}
fi
echo "args: '$args' group: '$group'"


TG_PARAMS=""

echo "Checking if all required arguments are provided"
if [[ -z $env ]] || [[ -z $cmd ]]
then
  echo "Usage: tg.sh <env> <cmd> [group] [args]"
  exit 1
fi


if [[ ! $(echo ${ENVS[@]} | fgrep -w $env) ]]
then
  echo "Environment $env not found"
  exit 1
fi

if [[ ! $(echo ${CMD[@]} | fgrep -w $cmd) ]]
then
  echo "Command $cmd not found"
  exit 1
fi


if [[ ! -z $group ]] && [[ $(echo ${MGROUPS[@]} | fgrep -w $group) ]]
then
  TG_PARAMS="$TG_PARAMS --terragrunt-modules-that-include terragrunt/_group/$group.hcl"
fi

echo "Running Terragrunt $cmd for group $group in environment $env with args $args"
set -x
TG_ENV=$env terragrunt run-all $cmd \
  $TG_PARAMS \
  --terragrunt-strict-include \
  --terragrunt-include-dir "./terragrunt/_env" \
  --terragrunt-include-dir "./terragrunt/_group" \
  --terragrunt-include-dir "./terragrunt/$env/*" \
  $args

#terragrunt run-all $cmd \
#  --terragrunt-ignore-dependency-order \
#  --terragrunt-strict-include \
#  --terragrunt-ignore-external-dependencies \
#  $args