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service-accounts-admin.md: Explain invalidating short-lived tokens #48981

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service-accounts-admin.md: Explain invalidating short-lived tokens
jplitza Dec 9, 2024
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13 changes: 13 additions & 0 deletions content/en/docs/reference/access-authn-authz/service-accounts-admin.md
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Expand Up @@ -577,6 +577,8 @@ time. Please refer to [auto-generated legacy ServiceAccount token clean up](#aut

## Delete/invalidate a ServiceAccount token {#delete-token}

### Delete/invalidate a long-lived/legacy ServiceAccount token {#delete-legacy-token}

If you know the name of the Secret that contains the token you want to remove:

```shell
Expand Down Expand Up @@ -615,6 +617,17 @@ Then, delete the Secret you now know the name of:
kubectl -n examplens delete secret/example-automated-thing-token-zyxwv
```

### Delete/invalidate a short-lived ServiceAccount token {#delete-short-lived}

Short lived ServiceAccount tokens automatically expire after the time-limit
specified during their creation. There is no central record of tokens issued,
so there is no way to revoke individual tokens.

If you have to revoke a short-lived token before its expiration, you
can delete and re-create the ServiceAccount it is associated to. This will
change its UID and hence invalidate **all** ServiceAccount tokens that were
created for it.

## External ServiceAccount token signing and key management

{{< feature-state feature_gate_name="ExternalServiceAccountTokenSigner" >}}
Expand Down