> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siderolabs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Enable workers on your control plane nodes

> How to enable workers on your control plane nodes.

export const VersionWarningBanner = () => {
  const latestVersion = "v1.13";
  const [latestUrl, setLatestUrl] = useState(null);
  const [currentVersion, setCurrentVersion] = useState(null);
  const [isBeta, setIsBeta] = useState(false);
  const parseVersion = v => v.replace("v", "").split(".").map(Number);
  const isGreaterVersion = (a, b) => {
    const [aMajor, aMinor] = parseVersion(a);
    const [bMajor, bMinor] = parseVersion(b);
    if (aMajor > bMajor) return true;
    if (aMajor === bMajor && aMinor > bMinor) return true;
    return false;
  };
  useEffect(() => {
    if (typeof window === "undefined") return;
    const {pathname, hash, search} = window.location;
    const match = pathname.match(/\/talos\/(v\d+\.\d+)\//);
    if (!match) return;
    const detectedVersion = match[1];
    if (detectedVersion === latestVersion) return;
    setCurrentVersion(detectedVersion);
    if (isGreaterVersion(detectedVersion, latestVersion)) {
      setIsBeta(true);
    }
    const newPath = pathname.replace(`/talos/${detectedVersion}/`, `/talos/${latestVersion}/`);
    setLatestUrl(`${newPath}${search}${hash}`);
  }, []);
  if (!latestUrl || !currentVersion) return null;
  return <div className="not-prose sticky top-6 z-50 my-6">
      <div className="border border-yellow-500/30 bg-yellow-500/10 px-4 py-3 rounded-xl">
        <div className="text-sm">
          {isBeta ? <>
              ⚠️ You are viewing a <strong>beta version</strong> of Talos ({currentVersion}).
              This version may be unstable.
              <a href={latestUrl} className="ml-2 underline text-yellow-400 hover:text-yellow-300 font-medium">
                View latest stable version {latestVersion} →
              </a>
            </> : <>
              ⚠️ You are viewing an older version of Talos ({currentVersion}).
              <a href={latestUrl} className="ml-2 underline text-yellow-400 hover:text-yellow-300 font-medium">
                View the latest version {latestVersion} →
              </a>
            </>}
        </div>
      </div>
    </div>;
};

<VersionWarningBanner />

By default, Talos Linux taints control plane nodes so that workloads are not schedulable on them.

In order to allow workloads to run on the control plane nodes (useful for single node clusters, or non-production clusters), follow the procedure below.

Modify the machine configuration for the controlplane nodes to add `allowSchedulingOnControlPlanes: true`:

```yaml theme={null}
cluster:
    allowSchedulingOnControlPlanes: true
```

This may be done via editing the `controlplane.yaml` file before it is applied to the control plane nodes, by [editing the machine config](../configure-your-talos-cluster/system-configuration/editing-machine-configuration), or by [patching the machine config](../configure-your-talos-cluster/system-configuration/patching).

## Load balancer configuration

When a load balancer such as MetalLB is used, the nodeLabel `node.kubernetes.io/exclude-from-external-load-balancers` should also be removed from the control plane nodes.
This label is added by default and instructs load balancers to exclude the node from the list of backend servers used by external load balancers.

In order to remove this label, you can patch the machine configuration for the control plane nodes with the patch:

```yaml theme={null}
machine:
  nodeLabels:
    node.kubernetes.io/exclude-from-external-load-balancers:
      $patch: delete
```