Example script and systemd scheduled service to sync local repo to AWS S3. This is if you prefer to backup locally on your network and sync a copy to S3 rather than use Restic to automatically interface with a S3 based repo.

restic-aws-daily.service

[Unit]
Description=Runs daily aws sync script

[Service]
Type=oneshot
ExecStart=/etc/restic/aws.sh

restic-aws-daily.timer

[Unit]
Description=Run aws-daily.service

[Timer]
Unit=restic-aws-daily.service
OnCalendar=*-*-* 02:30:00

[Install]
WantedBy=timers.target

restic-aws-sync.sh

#!/bin/bash

#: Title              : Cloud Sync
#: Date               : May 16, 2019
#: Author             : Matt Vance
#: Version            : 1.0
#: Description        : This syncs Restic backup to AWS
#: License            : MIT License (MIT)

# Copyright (C) 2019 Matthew Vance

#export AWS_CONFIG_FILE=/home/matt/.aws/config
export AWS_ACCESS_KEY_ID=
export AWS_SECRET_ACCESS_KEY=
export AWS_DEFAULT_REGION=us-east-2
export AWS_DEFAULT_OUTPUT=json

LOG=/var/log/restic/aws.log

#Define a timestamp function
timestamp() {
 date "+%b %d %Y %T %Z"
}

# Add timestamp
echo "$(timestamp): restic aws sync started" | tee -a $LOG
echo "-------------------------------------------------------------------------------" | tee -a $LOG


/usr/local/bin/aws s3 sync \
'/Volumes/storage/matt/backup/repos' \
's3://restic.your-domain.com/repos/' \
--storage STANDARD \
--exclude "*.DS_Store" \
--delete \
--sse AES256 | tee -a $LOG

# Add timestamp
echo "-------------------------------------------------------------------------------" | tee -a $LOG
echo "$(timestamp): restic aws sync finished" | tee -a $LOG
printf "\n" | tee -a $LOG