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control-plane: fix first_kube_control_plane delegation with kube_override_hostname (#12636)

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* control-plane: fix first_kube_control_plane delegation with kube_override_hostname

When kube_override_hostname is configured, the node names reported by
`kubectl get nodes` differ from the inventory_hostname known to Ansible.
This causes delegation failures in subsequent tasks since Ansible cannot
resolve the hostname from kubectl output to an inventory host.

Signed-off-by: Seena Fallah <seenafallah@gmail.com>

* control-plane: remove fragile first_control_plane selection logic

Current implementation breaks with kube_override_hostname and has
multiple edge cases. Drop until proper kubectl-based node lookup
can be implemented.

Signed-off-by: Seena Fallah <seenafallah@gmail.com>

---------

Signed-off-by: Seena Fallah <seenafallah@gmail.com>
This commit is contained in:
Seena Fallah
2025-11-25 17:10:38 +01:00
committed by GitHub
parent 3de6fa7220
commit 5789dc839c
4 changed files with 4 additions and 22 deletions
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docs/operations/nodes.md
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@@ -31,6 +31,8 @@ That's it.
Append the new host to the inventory and run `cluster.yml`. You can NOT use `scale.yml` for that.
**Note:** When adding new control plane nodes, always append them to the end of the `kube_control_plane` group in your inventory. Adding control plane nodes in the first position is not supported and will cause the playbook to fail.
### 2) Restart kube-system/nginx-proxy
In all hosts, restart nginx-proxy pod. This pod is a local proxy for the apiserver. Kubespray will update its static config, but it needs to be restarted in order to reload.