Backup & Restore

#!/bin/bash
set -euo pipefail

# ── Configuration ────────────────────────────────────────────────
FEDISUITE_DIR="/opt/fedisuite"          # Path to the FediSuite directory
BACKUP_DIR="/var/backups/fedisuite"     # Destination for backups
KEEP_DAYS=7                             # Delete backups older than X days
DB_NAME="fedisuite"
DB_USER="fedisuite"
DATE=$(date +%Y-%m-%d_%H-%M-%S)
LOG_PREFIX="[fedisuite-backup][$DATE]"

# ── Preparation ──────────────────────────────────────────────────
mkdir -p "$BACKUP_DIR"
cd "$FEDISUITE_DIR"

echo "$LOG_PREFIX Start"

# ── 1. Database (pg_dump) ────────────────────────────────────────
echo "$LOG_PREFIX Backing up database..."
docker compose exec -T db \
    pg_dump -U "$DB_USER" "$DB_NAME" \
    | gzip > "$BACKUP_DIR/db_${DATE}.sql.gz"
echo "$LOG_PREFIX  ✓ Database: db_${DATE}.sql.gz ($(du -sh "$BACKUP_DIR/db_${DATE}.sql.gz" | cut -f1))"

# ── 2. Uploads ───────────────────────────────────────────────────
echo "$LOG_PREFIX Backing up uploads..."
tar -czf "$BACKUP_DIR/uploads_${DATE}.tar.gz" \
    -C "$FEDISUITE_DIR" uploads/
echo "$LOG_PREFIX  ✓ Uploads: uploads_${DATE}.tar.gz ($(du -sh "$BACKUP_DIR/uploads_${DATE}.tar.gz" | cut -f1))"

# ── 3. Configuration ─────────────────────────────────────────────
echo "$LOG_PREFIX Backing up configuration..."
cp "$FEDISUITE_DIR/.env" "$BACKUP_DIR/env_${DATE}"
cp "$FEDISUITE_DIR/docker-compose.yml" "$BACKUP_DIR/compose_${DATE}.yml"
echo "$LOG_PREFIX  ✓ .env and docker-compose.yml backed up"

# ── 4. Clean up old backups ──────────────────────────────────────
echo "$LOG_PREFIX Cleaning up backups older than ${KEEP_DAYS} days..."
find "$BACKUP_DIR" -maxdepth 1 -type f -mtime "+$KEEP_DAYS" -delete
echo "$LOG_PREFIX  ✓ Cleanup complete"

echo "$LOG_PREFIX Backup completed successfully."
echo "$LOG_PREFIX Backup directory: $BACKUP_DIR"
ls -lh "$BACKUP_DIR" | tail -10

# Daily backups: keep for 7 days
find "$BACKUP_DIR/daily" -maxdepth 1 -type f -mtime +7 -delete

# Weekly backups: keep for 4 weeks (copy every Sunday)
if [ "$(date +%u)" = "7" ]; then
    cp "$BACKUP_DIR/db_${DATE}.sql.gz" "$BACKUP_DIR/weekly/"
    find "$BACKUP_DIR/weekly" -maxdepth 1 -type f -mtime +28 -delete
fi

# Monthly backups: keep for 3 months (copy on the 1st of each month)
if [ "$(date +%d)" = "01" ]; then
    cp "$BACKUP_DIR/db_${DATE}.sql.gz" "$BACKUP_DIR/monthly/"
    find "$BACKUP_DIR/monthly" -maxdepth 1 -type f -mtime +90 -delete
fi

# ── 5. Transfer externally ───────────────────────────────────────
echo "$LOG_PREFIX Transferring backups externally..."
rclone sync "$BACKUP_DIR" hetzner:fedisuite-backups \
    --quiet --log-level ERROR
echo "$LOG_PREFIX  ✓ External transfer complete"