kubernetes/kops · error

error powering on instance %s of group %q: %w

Error message

error powering on instance %s of group %q: %w

What it means

In RenderScw, the ServerAction 'poweron' call failed for a newly created server whose cloud-init user-data was just set. The server exists with user-data but is not running; the server ID and group name identify the machine that failed to start.

Source

Thrown at upup/pkg/fi/cloudup/scalewaytasks/instance.go:274

		// We load the cloud-init script in the instance user data
		err = instanceService.SetServerUserData(&instance.SetServerUserDataRequest{
			ServerID: srv.Server.ID,
			Zone:     srv.Server.Zone,
			Key:      "cloud-init",
			Content:  bytes.NewBuffer(userData),
		})
		if err != nil {
			return fmt.Errorf("error setting 'cloud-init' in user-data for instance %s of group %q: %w", srv.Server.ID, fi.ValueOf(expected.Name), err)
		}

		// We start the instance
		_, err = instanceService.ServerAction(&instance.ServerActionRequest{
			Zone:     zone,
			ServerID: srv.Server.ID,
			Action:   instance.ServerActionPoweron,
		})
		if err != nil {
			return fmt.Errorf("error powering on instance %s of group %q: %w", srv.Server.ID, fi.ValueOf(expected.Name), err)
		}

		// We wait for the instance to be ready
		_, err = instanceService.WaitForServer(&instance.WaitForServerRequest{
			ServerID: srv.Server.ID,
			Zone:     zone,
		})
		if err != nil {
			return fmt.Errorf("error waiting for instance %s of group %q: %w", srv.Server.ID, fi.ValueOf(expected.Name), err)
		}
	}

	// If newInstanceCount < 0, we need to delete instances of this group
	if newInstanceCount < 0 {

		igInstances, err := t.Cloud.GetClusterServers(t.Cloud.ClusterName(actual.Tags), actual.Name)
		if err != nil {
			return fmt.Errorf("error deleting instance: %w", err)

View on GitHub (pinned to 4c8573c808)

Solutions

1. Check the wrapped error (server may be in an invalid state for power-on)
2. Delete the orphaned server manually or let the next apply reconcile
3. Retry the apply operation

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/scalewaytasks/instance.go:274 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/fd42847e8b332397. Report an issue: GitHub.