99 lines
2.9 KiB
Markdown
99 lines
2.9 KiB
Markdown
---
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title: Docker application backup
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description: How to backup a Docker application on Unraid
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published: true
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date: 2023-06-27T07:54:18.672Z
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tags: linux, server, unraid, backup
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editor: markdown
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dateCreated: 2023-06-27T07:54:18.672Z
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---
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# Docker application backup
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This guide will show you how to backup a Docker application on Unraid. _Tested on Unraid 6.12.1_
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## Get Started
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- Begin by installing the [User Scripts plugin](https://forums.unraid.net/topic/48286-plugin-ca-user-scripts/).
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- Now we need to create the script. Go to `Settings > User Utilites > User Scripts` and click `Add New Script`.
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- Give the script a name, for example `Backup Docker Application`.
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- Paste the following into the script:
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```bash
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#!/bin/bash
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# --- DO NOT TOUCH ---
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now="$(date +"%Y-%m-%d"@%H.%M)"
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# --- Variables ---
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# The name of the application
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applicationName="application_name"
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# The name of the backup
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backupName="backup-$(date +%Y-%m-%d_%H-%M-%S)"
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# Set the path to the application's data directory
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applicationData="/mnt/user/appdata/application_name/"
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# Set the path to the backup directory
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# Example: /mnt/user/Storage/Backups/$applicationName/
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backupDirectory=""
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# Set Number of Days to Keep Backups
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days=30
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# The user of your account
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# Example: lee
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user=""
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# --- Backup Application ---
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# Start notification
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/usr/local/emhttp/plugins/dynamix/scripts/notify -s "$applicationName Backup" -d "Backup of $applicationName starting."
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# Create backup directory
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mkdir -p "$backupDirectory"
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cd "$backupDirectory"
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# Create the backup tarball
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tar -cf gitea-"$now".tar "$applicationData"
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# Set Permissions
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chown "$user:$user" $applicationName-"$now".tar
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# Cleanup old backups
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find "$backupDirectory"* -type d -mtime +"$days" | xargs rm -rf
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# Stop notification
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/usr/local/emhttp/plugins/dynamix/scripts/notify -s "$applicationName Backup" -d "Backup of $applicationName completed!"
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```
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- You can now test the script by clicking `Run Script`. If everything is working correctly, you should see a notification in the top right corner of the screen.
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- Now we need to set the script to run on a schedule. Next to `Run In Background` you will see a dropdown menu. Select how often you want it to run and click `Apply`.
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## Restore a backup
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- Delete the application's data directory.
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- Copy the backup to the application's data directory.
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Move the backup with the following command: (or via the Unraid web interface)
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```bash
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mv <backup_name>.tar /mnt/user/appdata/application_name/
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```
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- To restore a backup, simply extract the tarball and copy the files to the application's data directory.
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You can extract the tarball by running the following command:
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```bash
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tar -xvf <backup_name>.tar
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```
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This command will extract the tarball to the current directory.
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## Finished
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You have now successfully setup a backup script for your Docker application. You can view the backups in the directory you set in the script.
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