Aner Zakobar
136 lines
3.4 KiB
Bash
Executable File
136 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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BACKUP_DIR="${BACKUP_DIR:-/mnt2/homey-backup}"
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RESTORE_BASE="${RESTORE_BASE:-/mnt/replicas}"
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usage() {
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echo "Usage: $0 <pvc-name-or-friendly-name> [--dry-run]"
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echo ""
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echo "Restores a Longhorn volume backup to the replicas directory."
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echo ""
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echo "Arguments:"
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echo " pvc-name-or-friendly-name The PVC ID or friendly name"
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echo " --dry-run Show what would be done without copying"
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echo ""
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echo "Examples:"
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echo " $0 nextcloud-data-pvc"
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echo " $0 nextcloud-data-pvc --dry-run"
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echo ""
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echo "WARNING: This will overwrite existing data in $RESTORE_BASE"
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exit 1
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}
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if [[ $# -lt 1 ]]; then
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usage
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fi
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SEARCH_NAME="$1"
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DRY_RUN=false
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if [[ "${2:-}" == "--dry-run" ]]; then
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DRY_RUN=true
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fi
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MANIFEST="$BACKUP_DIR/manifest.json"
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if [[ ! -f "$MANIFEST" ]]; then
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echo "Error: Manifest not found at $MANIFEST_DIR"
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exit 1
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fi
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find_volume() {
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local search="$1"
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while IFS= read -r line; do
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pvc_id=$(echo "$line" | grep -oP '"pvc_id":\s*"\K[^"]+')
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friendly=$(echo "$line" | grep -oP '"friendly_name":\s*"\K[^"]+')
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if [[ "$pvc_id" == "$search" ]] || [[ "$friendly" == "$search" ]]; then
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echo "$pvc_id:$friendly"
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return 0
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fi
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done < <(grep -A6 '"volumes"' "$MANIFEST" | grep -E '"pvc_id"|"friendly_name"')
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return 1
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}
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VOLUME_INFO=$(find_volume "$SEARCH_NAME")
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if [[ -z "$VOLUME_INFO" ]]; then
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echo "Error: Volume '$SEARCH_NAME' not found in manifest."
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echo ""
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echo "Available volumes:"
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grep -oP '"friendly_name":\s*"\K[^"]+' "$MANIFEST" | while read -r name; do
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echo " - $name"
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done
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exit 1
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fi
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PVC_ID="${VOLUME_INFO%%:*}"
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FRIENDLY_NAME="${VOLUME_INFO#*:}"
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BACKUP_VOLUME_DIR="$BACKUP_DIR/volumes/$PVC_ID"
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RESTORE_VOLUME_DIR="$RESTORE_BASE/$PVC_ID"
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echo "========================================"
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echo " Restore Longhorn Volume"
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echo "========================================"
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echo ""
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echo "PVC ID: $PVC_ID"
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echo "Name: $FRIENDLY_NAME"
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echo "Source: $BACKUP_VOLUME_DIR"
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echo "Destination: $RESTORE_VOLUME_DIR"
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echo "Dry run: $DRY_RUN"
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echo ""
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if [[ "$DRY_RUN" == "true" ]]; then
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echo "[DRY RUN] Would copy:"
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du -sh "$BACKUP_VOLUME_DIR" 2>/dev/null || echo " (size unknown)"
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echo ""
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echo "Files to copy:"
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find "$BACKUP_VOLUME_DIR" -type f | head -20
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exit 0
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fi
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if [[ -d "$RESTORE_VOLUME_DIR" ]]; then
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echo "WARNING: Destination already exists!"
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echo ""
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read -p "Overwrite existing data? [y/N] " -n 1 -r
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echo ""
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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echo "Aborted."
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exit 1
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fi
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echo ""
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echo "Removing existing data..."
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sudo rm -rf "$RESTORE_VOLUME_DIR"
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fi
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echo "Creating destination directory..."
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sudo mkdir -p "$RESTORE_VOLUME_DIR"
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echo "Copying volume data..."
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sudo rsync -a --no-owner --no-group --info=progress2 \
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"$BACKUP_VOLUME_DIR/" \
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"$RESTORE_VOLUME_DIR/"
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echo ""
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echo "Setting permissions..."
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sudo chmod 700 "$RESTORE_VOLUME_DIR"
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echo ""
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echo "========================================"
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echo " Restore Complete!"
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echo "========================================"
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echo ""
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echo "Restored to: $RESTORE_VOLUME_DIR"
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echo ""
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echo "Size:"
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sudo du -sh "$RESTORE_VOLUME_DIR"
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echo ""
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echo "Next steps:"
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echo "1. Ensure Longhorn is configured to use $RESTORE_BASE"
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echo "2. Restart Longhorn or the affected pod"
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echo "3. Verify data integrity"
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