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waving-hands/deploy/waving-hands-backup.sh
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#!/bin/bash
# Nightly ledger backup to DigitalOcean Spaces, beside wizwar's in the same bucket.
# current/ - exact mirror of /var/lib/waving-hands
# snapshots/ - one dated copy per day, pruned after 90 days
# Ledgers are append-only JSONL; the duel server never needs stopping.
# Sentry Crons check-in: /root/.waving-hands-sentry-cron holds the check-in
# URL (absent file = no check-ins). SCHEDULE must match /etc/cron.d/waving-hands.
set -u
SCHEDULE="23 7 * * *"
BUCKET="kestrel-wizwar-backups"
PREFIX="waving-hands"
SRC="/var/lib/waving-hands"
LOG="/var/log/waving-hands/backup.log"
STAMP=$(date +%Y-%m-%d)
mkdir -p "$(dirname "$LOG")"
CRON_URL=$(cat /root/.waving-hands-sentry-cron 2>/dev/null || true)
checkin() {
[ -n "$CRON_URL" ] && curl -sf -o /dev/null -X POST -H "Content-Type: application/json" \
-d "{\"status\":\"$1\",\"monitor_config\":{\"schedule\":{\"type\":\"crontab\",\"value\":\"$SCHEDULE\"},\"checkin_margin\":30,\"max_runtime\":10,\"timezone\":\"UTC\"}}" \
"$CRON_URL" || true
}
if [ ! -s /root/.config/rclone/rclone.conf ]; then
echo "$(date -Is) skipped: rclone is not configured" >> "$LOG"
exit 0
fi
{
echo "=== $(date -Is) backup start"
checkin in_progress
if rclone sync "$SRC" "spaces:$BUCKET/$PREFIX/current" --exclude 'rollup.jsonl' 2>&1 &&
rclone copy "$SRC" "spaces:$BUCKET/$PREFIX/snapshots/$STAMP" 2>&1; then
checkin ok
else
checkin error
fi
CUTOFF=$(date -d "90 days ago" +%Y-%m-%d)
rclone lsf "spaces:$BUCKET/$PREFIX/snapshots/" --dirs-only 2>/dev/null | \
while read -r d; do
day="${d%/}"
if [[ "$day" < "$CUTOFF" ]]; then
echo "pruning snapshot $day"
rclone purge "spaces:$BUCKET/$PREFIX/snapshots/$day" 2>&1
fi
done
echo "=== $(date -Is) backup done"
} >> "$LOG" 2>&1