terra.sh

#!/bin/bash
# WTG
# Simple script
#
# Todo:
# - add check for TF version

RUN_TIME=$(/bin/date "+%Y-%m-%d-%H:%M:%S")
export TF_LOG=TRACE
export TF_LOG_PATH=./tf_debug_logs/terraform_debug-${RUN_TIME}.log

if [ ! -e ./tf_debug_logs/ ]
then
  echo "Creating tf_debug_logs directory to hold terraform debugging logs"
  mkdir tf_debug_logs
fi

if [ ! -e /usr/local/bin/terraform ]
then
  echo "Missing terraform binary: You should 'brew install terraform' to get it."
  exit 1
fi

if [ -z "$AWS_PROFILE" ]; then
  echo "Please set the AWS_PROFILE environment variable to the name of the profile configured via 'aws configure'"
  exit 1
fi

AWS_CLI_BIN=$(which aws)

if [ -z $AWS_CLI_BIN ]
then
  echo "Missing aws cli: You should 'brew install awscli' to get it."
  exit 1
fi

if [ ! -e terraform.tfvars ];
then
  echo "Missing a terraform.tfvars file: Edit and move terraform.tfvars.example"
  exit 1
fi

if [ "$1" == "apply" ];
then
  echo "#####################################################"
  echo "# Beginning Terraform "
  echo "# Do not hit control-c or attempt to abort the run or your account will be left in an unknown state"
  echo "#####################################################"
  echo "Updating terraform modules"
  terraform get --update
  terraform apply
elif [ "$1" == "destroy" ] ;
then
  terraform destroy --force
elif [ "$1" == "plan" ] ;
then
  terraform get --update
  terraform plan
elif [ "$1" == "output" ] ;
then
  terraform output |
  awk -F= 'BEGIN {}
        /{/ {LEADING_WHITESPACE="    "}
        /}/ {LEADING_WHITESPACE=""    }
        (! /=/ || $2 == "{" ) { print }
        (/=/ && $2 != "{" )   { gsub(/ */,"",$2);printf("%s%s= \"%s\"\n",LEADING_WHITESPACE,$1,$NF) }
        END {}'
elif [ "$1" == "help" ]
then
  echo "Executing as terraform $@"
  scriptname=$(basename $0)
  echo "Usage:"
  echo "$scriptname plan    # show the projected impact of your terraform apply"
  echo "$scriptname apply   # apply your terraform to realize or updating defined resources"
  echo "$scriptname destroy # destroy your cluster - does /not/ ask for permission!"
  echo "$scriptname output  # show IP addresses and other outputs defined for your resources "
  echo "$scriptname help    # usage - you're looking at it."
  echo "$scriptname 'x'     # passes through any arguments to terraform"
else
  echo "Executing terraform $@"
  terraform $@
fi