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[CONTINT-5127] Update cluster naming rules #35000

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[CONTINT-5127] Update cluster naming rules #35000

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8c05574
Update cluster naming rules
triviajon Mar 4, 2026
4ff2148
Update content/en/containers/guide/kubernetes-cluster-name-detection.md
triviajon Mar 4, 2026
1a65d46
Clarify FQDN requirement in cluster name rules
buraizu Mar 7, 2026
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10 changes: 5 additions & 5 deletions content/en/containers/guide/kubernetes-cluster-name-detection.md
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Expand Up @@ -21,10 +21,10 @@ For Agent v6.11+, the Datadog Agent can automatically detect the Kubernetes clus
<div class="alert alert-info">
This cluster name should be a unique name and abide by the following restrictions:
<ul>
<li/>Must only contain lowercase letters, numbers, and hyphens
<li/>Must start with a letter
<li/>Must end with a number or a letter
<li/>Must be less than or equal to 80 characters
<li/>Must contain only lowercase letters, numbers, dots, hyphens, and underscores
<li/>Must start with an alphanumeric character
<li/>Must end with an alphanumeric character
<li/>Must be similar to a Fully Qualified Domain Name (FQDN), without a trailing period
</ul>
</div>

Expand Down Expand Up @@ -117,4 +117,4 @@ If the node label is found, the value is used as the cluster name.
[2]: https://learn.microsoft.com/en-us/azure/virtual-machines/instance-metadata-service?tabs=linux
[3]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
[4]: https://docs.aws.amazon.com/eks/latest/userguide/pod-id-how-it-works.html
[5]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/work-with-tags-in-IMDS.html#allow-access-to-tags-in-IMDS
[5]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/work-with-tags-in-IMDS.html#allow-access-to-tags-in-IMDS
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