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open-nomad/.changelog/15092.txt

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keyring: safely handle missing keys and restore GC (#15092) When replication of a single key fails, the replication loop breaks early and therefore keys that fall later in the sorting order will never get replicated. This is particularly a problem for clusters impacted by the bug that caused #14981 and that were later upgraded; the keys that were never replicated can now never be replicated, and so we need to handle them safely. Included in the replication fix: * Refactor the replication loop so that each key replicated in a function call that returns an error, to make the workflow more clear and reduce nesting. Log the error and continue. * Improve stability of keyring replication tests. We no longer block leadership on initializing the keyring, so there's a race condition in the keyring tests where we can test for the existence of the root key before the keyring has been initialize. Change this to an "eventually" test. But these fixes aren't enough to fix #14981 because they'll end up seeing an error once a second complaining about the missing key, so we also need to fix keyring GC so the keys can be removed from the state store. Now we'll store the key ID used to sign a workload identity in the Allocation, and we'll index the Allocation table on that so we can track whether any live Allocation was signed with a particular key ID.
2022-11-01 19:00:50 +00:00
```release-note:bug
keyring: Fixed a bug where a missing key would prevent any further replication.
```
```release-note:bug
keyring: Re-enabled keyring garbage collection after fixing a bug where keys would be garbage collected even if they were used to sign a live allocation's workload identity.
```