setenv.sh

#!/bin/bash
if [ "$0" = "$BASH_SOURCE" ]
then
   echo "$0: Please source this file."
   echo "e.g. source ./setenv configurations/data-rnd-us-vet1-v1"
   return 1
fi

if [ -z "$1" ]
then
   echo "setenv: You must provide the name of the configuration file."
   echo "e.g. source ./setenv configurations/data-rnd-us-vet1-v1"
   return 1
fi
# Get directory we are running from
DIR=$(pwd)
DATAFILE="$DIR/$1"
if [ ! -f "$DATAFILE" ]; then
    echo "setenv: Configuration file not found: $DATAFILE"
    return 1
fi
# Get env from DATAFILE
ENVIRONMENT=$(sed -nr 's/^\s*environment\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
S3BUCKET=$(sed -nr 's/^\s*s3_bucket\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
S3BUCKETPROJ=$(sed -nr 's/^\s*s3_folder_project\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
S3BUCKETREGION=$(sed -nr 's/^\s*s3_folder_region\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
S3BUCKETTYPE=$(sed -nr 's/^\s*s3_folder_type\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
S3TFSTATEFILE=$(sed -nr 's/^\s*s3_tfstate_file\s*=\s*"([^"]*)".*$/\1/p' "$DATAFILE")
if [ -z "$ENVIRONMENT" ]
then
   echo "setenv: 'environment' variable not set in configuration file."
   return 1
fi

if [ -z "$S3BUCKET" ]
then
   echo "setenv: 's3_bucket' variable not set in configuration file."
   return 1
fi


if [ -z "$S3BUCKETPROJ" ]
then
  echo "setenv: 's3_folder_project' variable not set in configuration file."
  return 1
fi
if [ -z "$S3BUCKETREGION" ]
then
   echo "setenv: 's3_folder_region' variable not set in configuration file."
   return 1
fi

if [ -z "$S3BUCKETTYPE" ]
then
   echo "setenv: 's3_folder_type' variable not set in configuration file."
   return 1
fi
if [ -z "$S3TFSTATEFILE" ]
then
   echo "setenv: 's3_tfstate_file' variable not set in configuration file."
   echo "e.g. s3_tfstate_file=\"infrastructure.tfstate\""
return 1
fi

cat << EOF > "$DIR/backend.tf"
terraform {
    backend "s3" {
        bucket = "${S3BUCKET}"
        key = "${S3BUCKETPROJ}/${S3BUCKETREGION}/${S3BUCKETTYPE}/${ENVIRONMENT}/${S3TFSTATEFILE}"
        region = "${S3BUCKETREGION}"
    }
}
EOF
cat backend.tf