Aner Zakobar
147 lines
3.9 KiB
Bash
Executable File
147 lines
3.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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BACKUP_DIR="${BACKUP_DIR:-/mnt2/homey-backup}"
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MOUNT_BASE="${MOUNT_BASE:-/mnt/longhorn-volumes}"
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usage() {
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echo "Usage: $0 <pvc-name-or-friendly-name> [mount-point]"
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echo ""
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echo "Mounts a Longhorn volume backup for exploration."
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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 (e.g., 'nextcloud-data-pvc')"
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echo " mount-point Optional custom mount point (default: $MOUNT_BASE/<name>)"
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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 pvc-5c1f48e3-346f-4c35-8e6a-8fc0c4c3a842-96d72815"
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echo " $0 nextcloud-data-pvc /mnt/my-mount"
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echo ""
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echo "To unmount, run:"
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echo " sudo umount <mount-point>"
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echo " sudo losetup -d /dev/loopX"
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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="$1"
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CUSTOM_MOUNT="${2:-}"
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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"
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echo "Make sure you've run the backup script first."
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exit 1
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fi
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find_volume() {
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local search="$1"
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local found=""
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while IFS= read -r line; do
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pvc_id=$(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="${VOLUME_INFO#*:}"
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VOLUME_DIR="$BACKUP_DIR/volumes/$PVC_ID"
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if [[ ! -d "$VOLUME_DIR" ]]; then
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echo "Error: Volume directory not found: $VOLUME_DIR"
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exit 1
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fi
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VOLUME_HEAD=$(find "$VOLUME_DIR" -name "volume-head-*.img" | head -1)
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if [[ -z "$VOLUME_HEAD" ]]; then
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echo "Error: No volume-head-*.img file found in $VOLUME_DIR"
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echo "Contents:"
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ls -la "$VOLUME_DIR"
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exit 1
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fi
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if [[ -n "$CUSTOM_MOUNT" ]]; then
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MOUNT_POINT="$CUSTOM_MOUNT"
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else
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MOUNT_POINT="$MOUNT_BASE/$FRIENDLY_NAME"
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fi
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echo "========================================"
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echo " Mount 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 "Volume file: $(basename "$VOLUME_HEAD")"
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echo "Mount point: $MOUNT_POINT"
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echo ""
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LOOP_DEV=$(sudo losetup -fP --show "$VOLUME_HEAD")
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echo "Attached to: $LOOP_DEV"
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sudo mkdir -p "$MOUNT_POINT"
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echo ""
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echo "Mounting..."
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if sudo mount "$LOOP_DEV" "$MOUNT_POINT" 2>/dev/null; then
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echo ""
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echo "========================================"
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echo " Mounted Successfully!"
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echo "========================================"
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echo ""
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echo "Mount point: $MOUNT_POINT"
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echo "Loop device: $LOOP_DEV"
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echo ""
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echo "Contents:"
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ls -la "$MOUNT_POINT" 2>/dev/null | head -20
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echo ""
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echo "To unmount:"
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echo " sudo umount $MOUNT_POINT"
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echo " sudo losetup -d $LOOP_DEV"
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else
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echo "Mount failed. Trying with filesystem detection..."
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FS_TYPE=$(sudo blkid -o value -s TYPE "$LOOP_DEV" 2>/dev/null || echo "")
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if [[ -n "$FS_TYPE" ]]; then
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echo "Detected filesystem: $FS_TYPE"
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sudo mount -t "$FS_TYPE" "$LOOP_DEV" "$MOUNT_POINT"
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echo ""
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echo "Mounted successfully at $MOUNT_POINT"
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else
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echo "Could not detect filesystem. Volume may be empty or corrupted."
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echo ""
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echo "Loop device: $LOOP_DEV"
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echo "Run 'sudo blkid $LOOP_DEV' to inspect."
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echo ""
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echo "To detach:"
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echo " sudo losetup -d $LOOP_DEV"
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fi
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fi
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