Move terraform state between projects.

tf_move_state.sh

#!/usr/bin/env bash

##
# Usage: tf_move_state.sh source_directory target_directory source_resource_name <target_resource_name (uses source_resource_name if not provided)>
# Provide source and target directories using relative paths.
# WARNING: TEST ON AN INCONSPICUOUS AREA AS STAINING MAY OCCUR
# Credit to https://github.com/mcalhoun

set -e

SOURCEDIR=${1:?}
TARGETDIR=${2:?}
SOURCERESOURCE=${3:?}
TARGETRESOURCE=${4:-$SOURCERESOURCE}

TODAY=$(date +%Y%m%d)
BASEDIR=$(pwd)

cd ${BASEDIR}/${TARGETDIR}
terraform state pull > ${TODAY}.tfstate

cd ${BASEDIR}/${SOURCEDIR}
terraform state mv -state-out=${BASEDIR}/${TARGETDIR}/${TODAY}.tfstate ${SOURCERESOURCE} ${TARGETRESOURCE}

cd ${BASEDIR}/${TARGETDIR}
terraform state push ${TODAY}.tfstate;

cd ${BASEDIR}