Sync terraform state from/to s3 bucket

push_terraform.sh

#!/bin/bash

TERRAFORM_DIR="TERRAFORM_DIRECTORY"
find ${TERRAFORM_DIR} -name "*.tfstate" | while read lfile; do
  rfile="$(jq '.remote.config | select (.key != null) | "s3://" + .bucket + "/" + .key' ${lfile} -r)"
  if [ -n "${rfile}" ]; then
    if ! diff -q ${lfile} <(s3cmd --no-progress get ${rfile} -) > /dev/null; then
      echo "${lfile} differs, syncing ..."
      cd "$(dirname "${lfile}")/.."
      terraform remote pull && \
        terraform remote push
    else
      echo "${lfile} is synced"
    fi
  fi
done