func()

in pkg/controllers/selection/volumetopology.go [37:66]

• 30 lines of code
• 9 McCabe index (conditional complexity)

func (v *VolumeTopology) Inject(ctx context.Context, pod *v1.Pod) error {
	var requirements v1alpha5.Requirements
	for _, volume := range pod.Spec.Volumes {
		req, err := v.getRequirements(ctx, pod, volume)
		if err != nil {
			return err
		}
		requirements = append(requirements, req...)
	}
	if len(requirements) == 0 {
		return nil
	}
	if pod.Spec.Affinity == nil {
		pod.Spec.Affinity = &v1.Affinity{}
	}
	if pod.Spec.Affinity.NodeAffinity == nil {
		pod.Spec.Affinity.NodeAffinity = &v1.NodeAffinity{}
	}
	if pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution == nil {
		pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution = &v1.NodeSelector{}
	}
	if len(pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution.NodeSelectorTerms) == 0 {
		pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution.NodeSelectorTerms = []v1.NodeSelectorTerm{{}}
	}
	for _, requirement := range requirements {
		pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution.NodeSelectorTerms[0].MatchExpressions = append(
			pod.Spec.Affinity.NodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution.NodeSelectorTerms[0].MatchExpressions, requirement)
	}
	return nil
}