https://github.com/sypper-pit/lxc-backup-to-mega
LXC Container Backup Script
https://github.com/sypper-pit/lxc-backup-to-mega
backup backup-script lxc mega megadrive
Last synced: 6 months ago
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LXC Container Backup Script
- Host: GitHub
- URL: https://github.com/sypper-pit/lxc-backup-to-mega
- Owner: sypper-pit
- Created: 2024-08-25T15:16:31.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-12-25T19:16:16.000Z (10 months ago)
- Last Synced: 2024-12-25T19:25:14.684Z (10 months ago)
- Topics: backup, backup-script, lxc, mega, megadrive
- Language: Shell
- Homepage:
- Size: 51.8 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# LXC Container Backup Script
#### Description
This Bash script automates the process of creating, managing, and uploading backups of LXC (Linux Containers) to MEGA cloud storage. It's designed to maintain a specified number of local backups, MEGA backups, and LXC snapshots.
#### Features
- **Automatic error handling**: The script uses `set -e` and a trap to exit on errors.
- **Logging**: Provides detailed logging of each step in the backup process.
- **Dependency checking**: Verifies the presence of required commands before execution.
- **MEGA integration**: Automatically creates a backup folder on MEGA if it doesn't exist.
- **Snapshot management**: Cleans up old snapshots, maintaining a specified count.
- **Backup rotation**: Manages both local and MEGA backups, keeping only the most recent ones.
- **Compression**: Uses `xz` compression for efficient storage and transfer.
#### How It Works
1. **Initialization**:
- Sets up error handling and logging.
- Checks for required commands and the existence of the specified container.
2. **MEGA Setup**:
- Ensures a backup folder exists on MEGA. https://mega.io/ru/cmd#download
3. **Snapshot Management**:
- Removes old snapshots, keeping only the specified number.
4. **Backup Creation and Upload**:
- Creates a new snapshot of the container.
- Exports the snapshot to a compressed archive.
- Uploads the archive to MEGA.
5. **Cleanup**:
- Removes old local backups and MEGA backups, maintaining the specified count.
#### How to Restore a Container
To restore a container from a backup:
1. **Download the backup**:
- Use the MEGA client to download the desired `.tar.gz.xz` file.
2. **Decompress the archive**:
```bash
xz -d -.tar.gz.xz
```
3. **Import the container**:
```bash
lxc import -.tar.gz
```
4. **Start the restored container**:
```bash
lxc start
```
#### Configuration
Adjust the following variables in the script to customize the backup process:
- `CONTAINER`: Name of the LXC container to backup.
- `LOCAL_BACKUP_COUNT`: Number of local backups to keep.
- `MEGA_BACKUP_COUNT`: Number of backups to keep on MEGA.
- `SNAPSHOT_COUNT`: Number of snapshots to keep in LXC.
#### Requirements
- LXC (Linux Containers)
- MEGA command-line tools (`mega-put`, `mega-ls`, `mega-mkdir`)
- `xz` compression utility
#### Error Handling
The script uses the `trap` command to handle errors gracefully. If an error occurs, it will display an error message and exit with a non-zero status.
#### Note
Ensure you have sufficient permissions and storage space both locally and on your MEGA account before running this script.