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Backport #26451 by @lunny fix https://github.com/go-gitea/gitea/issues/25995#issuecomment-1674096710 Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: silverwind <me@silverwind.io>
100 lines
4.1 KiB
Markdown
100 lines
4.1 KiB
Markdown
---
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date: "2021-09-02T16:00:00+08:00"
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title: "Upgrade from an old Gitea"
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slug: "upgrade-from-gitea"
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sidebar_position: 100
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toc: false
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draft: false
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aliases:
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- /en-us/upgrade-from-gitea
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menu:
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sidebar:
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parent: "installation"
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name: "Upgrade From Old Gitea"
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sidebar_position: 100
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identifier: "upgrade-from-gitea"
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---
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# Upgrade from an old Gitea
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Follow below steps to ensure a smooth upgrade to a new Gitea version.
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## Check the Changelog for breaking changes
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To make Gitea better, some breaking changes are unavoidable, especially for big milestone releases.
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Before upgrading, please read the [Changelog on Gitea blog](https://blog.gitea.com/)
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and check whether the breaking changes affect your Gitea instance.
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## Verify there are no deprecated configuration options
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New versions of Gitea often come with changed configuration syntax or options which are usually displayed for
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at least one release cycle inside at the top of the Site Administration panel. If these warnings are not
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resolved, Gitea may refuse to start in the following version.
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## Backup for downgrade
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Gitea keeps compatibility for patch versions whose first two fields are the same (`a.b.x` -> `a.b.y`),
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these patch versions can be upgraded and downgraded with the same database structure.
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Otherwise (`a.b.?` -> `a.c.?`), a newer Gitea version will upgrade the old database
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to a new structure that may differ from the old version.
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For example:
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| From | To | Result |
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| --- | --- | --- |
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| 1.4.0 | 1.4.1 | ✅ |
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| 1.4.1 | 1.4.0 | ⚠️ Not recommended, take your own risk! Although it may work if the database structure doesn't change, it's highly recommended to use a backup to downgrade. |
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| 1.4.x | 1.5.y | ✅ Database gets upgraded. You can upgrade from 1.4.x to the latest 1.5.y directly. |
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| 1.5.y | 1.4.x | ❌ Database already got upgraded and can not be used for an old Gitea, use a backup to downgrade. |
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**Since you can not run an old Gitea with an upgraded database,
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a backup should always be made before a database upgrade.**
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If you use Gitea in production, it's always highly recommended to make a backup before upgrade,
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even if the upgrade is between patch versions.
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Backup steps:
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* Stop Gitea instance
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* Backup database
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* Backup Gitea config
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* Backup Gitea data files in `APP_DATA_PATH`
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* Backup Gitea external storage (eg: S3/MinIO or other storages if used)
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If you are using cloud services or filesystems with snapshot feature,
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a snapshot for the Gitea data volume and related object storage is more convenient.
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After all of steps have been prepared, download the new version, stop the application, perform a backup and
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then start the new application. On each startup, Gitea verifies that the database is up to date and will automtically
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perform any necessary migrations. Depending on the size of the database, this can take some additional time on the
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first launch during which the application will be unavailable.
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## Upgrade with Docker
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* `docker pull` the latest Gitea release.
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* Stop the running instance, backup data.
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* Use `docker` or `docker-compose` to start the newer Gitea Docker container.
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## Upgrade from package
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* Stop the running instance, backup data.
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* Use your package manager to upgrade Gitea to the latest version.
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* Start the Gitea instance.
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## Upgrade from binary
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* Download the latest Gitea binary to a temporary directory.
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* Stop the running instance, backup data.
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* Replace the installed Gitea binary with the downloaded one.
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* Start the Gitea instance.
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A script automating these steps for a deployment on Linux can be found at [`contrib/upgrade.sh` in Gitea's source tree](https://github.com/go-gitea/gitea/blob/main/contrib/upgrade.sh).
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## Take care about customized templates
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Gitea's template structure and variables may change between releases, if you are using customized templates,
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do pay attention if your templates are compatible with the Gitea you are using.
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If the customized templates don't match Gitea version, you may experience:
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`50x` server error, page components missing or malfunctioning, strange page layout, ...
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Remove or update the incompatible templates and Gitea web will work again.
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