unsupported cloud provider for node configuration %s

Error message

unsupported cloud provider for node configuration %s

What it means

Error "unsupported cloud provider for node configuration %s" thrown in kubernetes/kops.

Source

Thrown at upup/pkg/fi/nodeup/command.go:794

			return nil, err
		}
		authenticator = a

	case "metal":
		a, err := pkibootstrap.NewAuthenticatorFromFile("/etc/kubernetes/kops/pki/machine/private.pem")
		if err != nil {
			return nil, err
		}
		authenticator = a
	case api.CloudProviderLinode:
		a, err := linodemetadata.NewLinodeAuthenticator()
		if err != nil {
			return nil, err
		}
		authenticator = a

	default:
		return nil, fmt.Errorf("unsupported cloud provider for node configuration %s", bootConfig.CloudProvider)
	}

	var challengeListener *bootstrap.ChallengeListener
	if kopsmodel.UseChallengeCallback(bootConfig.CloudProvider) {
		challengeServer, err := bootstrap.NewChallengeServer(bootConfig.ClusterName, []byte(bootConfig.ConfigServer.CACertificates))
		if err != nil {
			return nil, err
		}
		listen := ":" + strconv.Itoa(wellknownports.NodeupChallenge)

		l, err := challengeServer.NewListener(ctx, listen)
		if err != nil {
			return nil, fmt.Errorf("error starting challenge listener: %w", err)
		}
		challengeListener = l
		defer challengeListener.Stop()
	}

View on GitHub (pinned to 4c8573c808)

When it happens

Trigger: Thrown at upup/pkg/fi/nodeup/command.go:794 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/780c95820fb8e8a1. Report an issue: GitHub.