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# Conflicts: # user/packages/alpine.md # user/packages/cran.md # user/packages/debian.md # user/packages/go.md # user/packages/rpm.md
71 lines
6.7 KiB
Markdown
71 lines
6.7 KiB
Markdown
---
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layout: '~/layouts/Markdown.astro'
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title: 'Storage'
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license: 'Apache-2.0'
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origin_url: 'https://github.com/go-gitea/gitea/blob/62ac3251fa545d32bdfc9ff824106b97ec63edbb/docs/content/doc/usage/packages/storage.en-us.md'
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---
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This document describes the storage of the package registry and how it can be managed.
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## Deduplication
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The package registry has a build-in deduplication of uploaded blobs.
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If two identical files are uploaded only one blob is saved on the filesystem.
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This ensures no space is wasted for duplicated files.
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If two packages are uploaded with identical files, both packages will display the same size but on the filesystem they require only half of the size.
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Whenever a package gets deleted only the references to the underlaying blobs are removed.
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The blobs get not removed at this moment, so they still require space on the filesystem.
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When a new package gets uploaded the existing blobs may get referenced again.
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These unreferenced blobs get deleted by a [clean up job]({{< relref "doc/advanced/config-cheat-sheet.en-us.md#cron---cleanup-expired-packages-croncleanup_packages" >}}).
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The config setting `OLDER_THAN` configures how long unreferenced blobs are kept before they get deleted.
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## Cleanup Rules
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Package registries can become large over time without cleanup.
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It's recommended to delete unnecessary packages and set up cleanup rules to automatically manage the package registry usage.
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Every package owner (user or organization) manages the cleanup rules which are applied to their packages.
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| Setting | Description |
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| ---------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| Enabled | Turn the cleanup rule on or off. |
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| Type | Every rule manages a specific package type. |
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| Apply pattern to full package name | If enabled, the patterns below are applied to the full package name (`package/version`). Otherwise only the version (`version`) is used. |
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| Keep the most recent | How many versions to _always_ keep for each package. |
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| Keep versions matching | The regex pattern that determines which versions to keep. An empty pattern keeps no version while `.+` keeps all versions. The container registry will always keep the `latest` version even if not configured. |
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| Remove versions older than | Remove only versions older than the selected days. |
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| Remove versions matching | The regex pattern that determines which versions to remove. An empty pattern or `.+` leads to the removal of every package if no other setting tells otherwise. |
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Every cleanup rule can show a preview of the affected packages.
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This can be used to check if the cleanup rules is proper configured.
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### Regex examples
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Regex patterns are automatically surrounded with `\A` and `\z` anchors.
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Do not include any `\A`, `\z`, `^` or `$` token in the regex patterns as they are not necessary.
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The patterns are case-insensitive which matches the behaviour of the package registry in Forgejo.
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| Pattern | Description |
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| ---------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `.*` | Match every possible version. |
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| `v.+` | Match versions that start with `v`. |
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| `release` | Match only the version `release`. |
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| `release.*` | Match versions that are either named or start with `release`. |
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| `.+-temp-.+` | Match versions that contain `-temp-`. |
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| `v.+\|release` | Match versions that either start with `v` or are named `release`. |
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| `package/v.+\|other/release` | Match versions of the package `package` that start with `v` or the version `release` of the package `other`. This needs the setting _Apply pattern to full package name_ enabled. |
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### How the cleanup rules work
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The cleanup rules are part of the [clean up job]({{< relref "doc/advanced/config-cheat-sheet.en-us.md#cron---cleanup-expired-packages-croncleanup_packages" >}}) and run periodically.
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The cleanup rule:
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1. Collects all packages of the package type for the owners registry.
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1. For every package it collects all versions.
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1. Excludes from the list the # versions based on the _Keep the most recent_ value.
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1. Excludes from the list any versions matching the _Keep versions matching_ value.
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1. Excludes from the list the versions more recent than the _Remove versions older than_ value.
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1. Excludes from the list any versions not matching the _Remove versions matching_ value.
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1. Deletes the remaining versions.
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