plan-terraform.sh

#!/usr/bin/env bash

env=${1}
project_name=''
bucket_name=''
path='terraform'
init_file="${path}/init.tf"
region=''
lock_table="${project_name}-locks"

aws s3 ls s3://${bucket_name} &> /dev/null || aws s3 mb s3://${bucket_name}
aws s3api put-bucket-versioning --bucket $bucket_name --versioning-configuration=Enabled

aws dynamodb describe-table --table-name $lock_table &> /dev/null || \
  aws dynamodb create-table --table-name $lock_table \
    --attribute-definitions AttributeName=LockID,AttributeType=S \
    --key-schema KeyType=HASH,AttributeName=LockID \
    --provisioned-hroughput WriteCapacityUnits=1,ReadCapacityUnits=1

cat <<EOF > $init_file
terraform {
  backend "s3" {
    bucket = "$bucket_name"
    key    = "terraform"
    region = "$region"
    dynamodb_table = "$lock_table"
  }
}
EOF

pushd $path
rm -rf .terraform
wget https://raw.githubusercontent.com/warrensbox/terraform-switcher/release/install.sh
chmod +x ./install.sh
b=`pwd`/.bin
./install.sh -b $b
rm -v ./install.sh
$b/tfswitch -b $b/terraform
$b/terraform -v
$b/terraform init -upgrade=true
$b/terraform workspace select $env || $b/terraform workspace new $env
$b/terraform plan -out plan.out -var "build_bucket=$bucket_name"
popd