func()

in internal/controller/proxy_image_upgrade.go [38:71]

• 25 lines of code
• 8 McCabe index (conditional complexity)

func (c *upgradeDefaultProxyOnStartup) Start(ctx context.Context) error {
	l := &cloudsqlapi.AuthProxyWorkloadList{}

	for {
		select {
		case <-ctx.Done():
			return nil
		default:
			// c.c.List() fills l with a paginated list of AuthProxyWorkloads.
			// The token in l.Continue field is used get the next page of the list.
			// the for loop exits when l.Continue is blank, meaning no more pages.
			err := c.c.List(ctx, l, client.Continue(l.Continue))
			if err != nil {
				return fmt.Errorf("can't list AuthProxyWorkload on startup, %v", err)
			}

			for _, p := range l.Items {
				useDefaultImage := p.Spec.AuthProxyContainer == nil || p.Spec.AuthProxyContainer.Image == ""

				if !useDefaultImage {
					continue
				}

				// If an APW has a default image, then perform an "update" on it so that
				// the reconcile function runs and triggers the appropriate rolling updates.
				log.FromContext(ctx).Info(fmt.Sprintf("Upgrading workload default images for %s/%s", p.Namespace, p.Namespace))
				err = c.c.Update(ctx, &p)
			}
			if l.Continue == "" {
				return nil
			}
		}
	}
}