project/www/restore_path.sh

#!/bin/bash

set -eu
cd "$(dirname "$0")"

FILE_COUNT="$(find "$LOCAL_BACKUP_PATH" -type f | wc -l)"
if [ "$FILE_COUNT" = 0 ]; then
    exit 0
fi

# if the user specified --restore-certs then we'll go forward on letsencrypt 
if [ "$APP" = letsencrypt ] && [ "$RESTORE_CERTS" = true ]; then
    USER_SAYS_YES=true
fi

# if the user said -y at the cli, we can skip this.
if [ "$USER_SAYS_YES" = false ]; then

    RESPONSE=
    read -r -p "Are you sure you want to restore the local path '$LOCAL_BACKUP_PATH' to the remote server at '$PRIMARY_WWW_FQDN' (y/n)": RESPONSE
    if [ "$RESPONSE" != "y" ]; then
        exit 0
    fi

fi

# delete the target backup path so we can push restoration files from the management machine.
ssh "$PRIMARY_WWW_FQDN" sudo rm -rf "$REMOTE_SOURCE_BACKUP_PATH"

# scp our local backup directory to the remote machine
ssh "$PRIMARY_WWW_FQDN" sudo mkdir -p "$REMOTE_BACKUP_PATH"
ssh "$PRIMARY_WWW_FQDN" sudo chown ubuntu:ubuntu "$REMOTE_BACKUP_PATH"

scp -r "$LOCAL_BACKUP_PATH" "$PRIMARY_WWW_FQDN:$REMOTE_BACKUP_PATH"

# now we run duplicity to restore the archive.
ssh "$PRIMARY_WWW_FQDN" sudo PASSPHRASE="$DUPLICITY_BACKUP_PASSPHRASE" duplicity --force restore "file://$REMOTE_BACKUP_PATH/$APP" "$REMOTE_SOURCE_BACKUP_PATH/"

# reset folder owner to ubuntu
ssh "$PRIMARY_WWW_FQDN" sudo chown ubuntu:ubuntu "$REMOTE_DATA_PATH/$APP"