92 lines
3.1 KiB
Markdown
92 lines
3.1 KiB
Markdown
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---
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title: 'Backup Task and Project'
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linkTitle: 'Backup'
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weight: 17
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---
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## Overview
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In CVAT you can backup tasks and projects.
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This can be used to backup a task or project on your PC or to transfer to another server.
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## Create backup
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To backup a task or project, open the action menu and select `Backup Task` or `Backup Project`.
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You can backup a project or a task locally on your PC or using an
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{{< ilink "/docs/manual/basics/attach-cloud-storage" "attached cloud storage" >}}.
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The dialog includes a switch **`Use lightweight backup whenever possible`**.
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When enabled, CVAT creates a lightweight backup for data that comes from attached cloud storage:
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the backup stores task/project meta and annotations and **does not** copy raw media files.
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This reduces backup size and time for cloud-backed data.
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The switch has no effect on a tasks, whose data is located on CVAT.
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The switch is enabled by default.
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(Optional) Specify the name in the `Custom name` text field for backup, otherwise the file of backup name
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will be given by the mask `project_<project_name>_backup_<date>_<time>.zip` for the projects
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and `task_<task_name>_backup_<date>_<time>.zip` for the tasks.
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If you want to save a backup to a specific
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{{< ilink "/docs/manual/basics/attach-cloud-storage" "attached cloud storage" >}},
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you should additionally turn off the switch `Use default settings`, select the `Cloud storage` value
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in the `Target storage` and select this storage in the list of the attached cloud storages.
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## Create backup APIs
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- endpoints:
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- `/tasks/{id}/backup`
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- `/projects/{id}/backup`
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- method: `GET`
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- responses: 202, 201 with zip archive payload
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### Upload backup APIs
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- endpoints:
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- `/api/tasks/backup`
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- `/api/projects/backup`
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- method: `POST`
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- Content-Type: `multipart/form-data`
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- responses: 202, 201 with json payload
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## Create from backup
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To create a task or project from a backup, go to the tasks or projects page,
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click the `Create from backup` button and select the archive you need.
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As a result, you'll get a task containing data, parameters, and annotations of
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the previously exported task.
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> Note: When restoring from a **lightweight backup**, CVAT creates a task which is not attached to cloud storage.
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> Data cannot be fetched until cloud storage is attached on a Task page.
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## Backup file structure
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As a result, you'll get a zip archive containing data,
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task or project and task specification and annotations with the following structure:
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{{< tabpane >}}
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{{< tab header="Task Backup Structure" >}}
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.
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├── data
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│ └── {user uploaded data}
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├── task.json
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└── annotations.json
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{{< /tab >}}
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{{< tab header="Project Backup Structure" >}}
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.
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├── task_{id}
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│ ├── data
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│ │ └── {user uploaded data}
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│ ├── task.json
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│ └── annotations.json
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└── project.json
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{{< /tab >}}
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{{< /tabpane >}}
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