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sovereign-stack/deployment/btcpayserver/scripts/btcpay-backup.sh
2022-07-27 12:38:33 -04:00

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#!/bin/bash -e
set -o pipefail -o errexit
# Please be aware of these important issues:
#
# - Old channel state is toxic and you can loose all your funds, if you or someone
# else closes a channel based on the backup with old state - and the state changes
# often! If you publish an old state (say from yesterday's backup) on chain, you
# WILL LOSE ALL YOUR FUNDS IN A CHANNEL, because the counterparty will publish a
# revocation key!
if [ "$(id -u)" != "0" ]; then
printf "\n🚨 This script must be run as root.\n"
printf "➡️ Use the command 'sudo su -' (include the trailing hypen) and try again.\n\n"
exit 1
fi
# preparation
docker_dir=$(docker volume inspect generated_btcpay_datadir --format="{{.Mountpoint}}" | sed -e "s%/volumes/.*%%g")
dbdump_name=postgres.sql.gz
btcpay_dir="$BTCPAY_BASE_DIRECTORY/btcpayserver-docker"
backup_dir="$docker_dir/volumes/backup_datadir/_data"
dbdump_path="$docker_dir/$dbdump_name"
backup_path="$backup_dir/backup.tar.gz"
# ensure backup dir exists
if [ ! -d "$backup_dir" ]; then
mkdir -p $backup_dir
fi
cd $btcpay_dir
. helpers.sh
dbcontainer=$(docker ps -a -q -f "name=postgres_1")
if [ -z "$dbcontainer" ]; then
printf "\n"
echo " Database container is not up and running. Starting BTCPay Server …"
docker volume create generated_postgres_datadir
docker-compose -f $BTCPAY_DOCKER_COMPOSE up -d postgres
printf "\n"
dbcontainer=$(docker ps -a -q -f "name=postgres_1")
if [ -z "$dbcontainer" ]; then
echo "🚨 Database container could not be started or found."
exit 1
fi
fi
printf "\n"
echo " Dumping database …"
{
docker exec $dbcontainer pg_dumpall -c -U postgres | gzip > $dbdump_path
echo "✅ Database dump done."
} || {
echo "🚨 Dumping failed. Please check the error message above."
exit 1
}
printf "\n Stopping BTCPay Server …\n\n"
btcpay_down
printf "\n"
cd $docker_dir
echo " Archiving files in $(pwd)"
{
tar \
--exclude="volumes/backup_datadir" \
--exclude="volumes/generated_bitcoin_datadir/blocks" \
--exclude="volumes/generated_bitcoin_datadir/chainstate" \
--exclude="volumes/generated_bitcoin_datadir/debug.log" \
--exclude="volumes/generated_litecoin_datadir/blocks" \
--exclude="volumes/generated_litecoin_datadir/chainstate" \
--exclude="volumes/generated_litecoin_datadir/debug.log" \
--exclude="volumes/generated_postgres_datadir" \
--exclude="volumes/generated_clightning_bitcoin_datadir/_data/lightning-rpc" \
--exclude="**/logs/*" \
-cvzf $backup_path $dbdump_name volumes/generated_*
echo "✅ Archive done."
if [ ! -z "$BTCPAY_BACKUP_PASSPHRASE" ]; then
printf "\n"
echo "🔐 BTCPAY_BACKUP_PASSPHRASE is set, the backup will be encrypted."
{
gpg -o "$backup_path.gpg" --batch --yes -c --passphrase "$BTCPAY_BACKUP_PASSPHRASE" $backup_path
rm $backup_path
backup_path="$backup_path.gpg"
echo "✅ Encryption done."
} || {
echo "🚨 Encrypting failed. Please check the error message above."
printf "\n Restarting BTCPay Server …\n\n"
cd $btcpay_dir
btcpay_up
exit 1
}
fi
} || {
echo "🚨 Archiving failed. Please check the error message above."
printf "\n Restarting BTCPay Server …\n\n"
cd $btcpay_dir
btcpay_up
exit 1
}
printf "\n Restarting BTCPay Server …\n\n"
cd $btcpay_dir
btcpay_up
printf "\n Cleaning up …\n\n"
rm $dbdump_path
printf "✅ Backup done => $backup_path\n\n"