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DOCS-3093: Fix inaccuracies on the Node reference - #3137

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ctauchen merged 4 commits into
tigera:mainfrom
ctauchen:DOCS-3093-fact-check-node
Oct 21, 2026
Merged

ctauchen merged 4 commits into
tigera:mainfrom
ctauchen:DOCS-3093-fact-check-node

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@ctauchen

@ctauchen ctauchen commented Oct 20, 2026 •

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Fixes statements on the Node reference that a kind cluster running each release showed to be wrong.

  • With the Kubernetes datastore, each node resource comes from the Kubernetes node of the same name, and calicoctl can't create one.
  • The name rule allowed _ and uppercase letters.
  • The Spec table was missing addresses and interfaces.
  • vxlanTunnelMACAddr isn't set by the system on Linux. When unset, Felix derives the MAC address from the node name.
  • The WireGuard interface addresses take a bare IP address, not an address and subnet.

Reproduced in every tree: v3.33.0 for next and 3.33 (native v3 CRD and API server mode), v3.32.2 for 3.32, and v3.31.7 for 3.31.

Not changed, for follow-up:

  • The IPv4 address is required for BGP unless the node is IPv6-only and CALICO_ROUTER_ID is set. This needs an IPv6-only node to show.
  • vxlanTunnelMACAddrV6 behaves like the IPv4 field. This needs an IPv6 lab to show.
  • The node resource isn't served through kubectl, so use calicoctl. NodeAddress, NodeInterface and the Status fields aren't documented. These come from source and weren't tested on a cluster.

Preview:

Correct statements on the Node page that a kind cluster running the release showed to be wrong.
Correct statements on the Node page that a kind cluster running the release showed to be wrong.
Correct statements on the Node page that a kind cluster running the release showed to be wrong.
Correct statements on the Node page that a kind cluster running the release showed to be wrong.
Copilot AI lite review requested due to automatic review settings October 20, 2026 06:57
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🟡 Changes recommended

The documented Node naming rules incorrectly exclude valid uppercase letters and underscores, with an additional consistency issue in v3.32.

4 open issues
What changed in this PR

Updates Calico Node reference documentation across current and versioned releases to correct datastore behavior, fields, VXLAN MAC handling, and WireGuard address descriptions.

Changes:

  • Clarifies Kubernetes datastore Node behavior.
  • Adds addresses and interfaces.
  • Corrects naming, VXLAN MAC, and WireGuard documentation.
File Description
calico/​reference/​resources/​node.mdx Updates the current Node reference.
calico_versioned_docs/​version-3.33/​reference/​resources/​node.mdx Updates the v3.33 Node reference.
calico_versioned_docs/​version-3.32/​reference/​resources/​node.mdx Updates the v3.32 Node reference.
calico_versioned_docs/​version-3.31/​reference/​resources/​node.mdx Updates the v3.31 Node reference.

Review effort: Lite

| Field | Description | Accepted Values | Schema |
| ----- | -------------------------------- | --------------------------------------------------- | ------ |
| name | The name of this node. Required. | Alphanumeric string with optional `.`, `_`, or `-`. | string |
| name | The name of this node. Required. | Lowercase alphanumeric string with optional `.` or `-`. | string |
| Field | Description | Accepted Values | Schema |
| ----- | -------------------------------- | --------------------------------------------------- | ------ |
| name | The name of this node. Required. | Alphanumeric string with optional `.`, `_`, or `-`. | string |
| name | The name of this node. Required. | Lowercase alphanumeric string with optional `.` or `-`. | string |
| Field | Description | Accepted Values | Schema |
| ----- | -------------------------------- | --------------------------------------------------- | ------ |
| name | The name of this node. Required. | Alphanumeric string with optional `.`, `_`, or `-`. | string |
| name | The name of this node. Required. | Lowercase alphanumeric string with optional `.` or `-`. | string |
| Field | Description | Accepted Values | Schema |
| ----- | -------------------------------- | --------------------------------------------------- | ------ |
| name | The name of this node. Required. | Alphanumeric string with optional `.`, `_`, or `-`. | string |
| name | The name of this node. Required. | Lowercase alphanumeric string with optional `.` or `-`. | string |
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@ctauchen ctauchen left a comment

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LGTM

@ctauchen
ctauchen marked this pull request as ready for review October 21, 2026 16:10
@ctauchen
ctauchen requested a review from a team as a code owner October 21, 2026 16:10
@ctauchen
ctauchen merged commit 8ab24eb into tigera:main Oct 21, 2026
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