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docs(1.7.0): add PSA for issue 9267 #974

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Aug 21, 2024
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docs(1.7.0): add PSA for issue 9267 #974

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19 changes: 19 additions & 0 deletions content/docs/1.7.0/important-notes/_index.md
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Expand Up @@ -6,6 +6,8 @@ weight: 1
This page lists important notes for Longhorn v{{< current-version >}}.
Please see [here](https://github.com/longhorn/longhorn/releases/tag/v{{< current-version >}}) for the full release note.

- [Warning](#warning)
- [Unable to Attach Volumes Created Before v1.5.2 and v1.4.4](#unable-to-attach-volumes-created-before-v152-and-v144)
- [Deprecation](#deprecation)
- [Environment Check Script](#environment-check-script)
- [General](#general)
Expand Down Expand Up @@ -35,6 +37,23 @@ Please see [here](https://github.com/longhorn/longhorn/releases/tag/v{{< current
- [Snapshot Creation Time As Shown in the UI Occasionally Changes](#snapshot-creation-time-as-shown-in-the-ui-occasionally-changes)
- [Unable To Revert a Volume to a Snapshot Created Before Longhorn v1.7.0](#unable-to-revert-a-volume-to-a-snapshot-created-before-longhorn-v170)

## Warning

### Unable to Attach Volumes Created Before v1.5.2 and v1.4.4

The Longhorn team has identified [a critical issue](https://github.com/longhorn/longhorn/issues/9267) that affects volume attachment in Longhorn v1.7.0. A fix for this issue will be included in v1.7.1, which is in active development.

Avoid upgrading to v1.7.0 if your Longhorn cluster contains `engine` resources with the following characteristics:

- Resource name: The format is `<volume name>-e-<8-char random id>`.
- Time of creation: A Longhorn version earlier than v1.5.2 and v1.4.4 was installed on the cluster.

Run the following command to check if you can safely upgrade your Longhorn cluster to v1.7.0:

> ```
> [ $(kubectl -n longhorn-system get engines.longhorn.io -o name | grep -E '\-e\-[a-z0-9]{8}$' | wc -l) -gt 0 ] && echo "Please hold off on upgrading to v1.7.0 until v1.7.1 is available." || echo "Safe to upgrade to v1.7.0."
> ```

## Deprecation

### Environment Check Script
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