func()

in operator/pkg/operator/injector/injector.go [278:337]
50 lines of code
8 McCabe index (conditional complexity)

func (s *SidecarInjectField) OverlaySidecar(a Annotations, ao *AnnotationOverlay, annotation *map[string]string) bool {
	s.Initcontainer.Command = make([]string, 1)
	s.Initcontainer.Args = make([]string, 2)

	limitsStr := ""
	requestStr := ""
	// every annotation map a pointer to the field of SidecarInjectField
	annoField := map[string]*string{
		"initcontainer.Name":               &s.Initcontainer.Name,
		"initcontainer.Image":              &s.Initcontainer.Image,
		"initcontainer.Command":            &s.Initcontainer.Command[0],
		"initcontainer.args.Option":        &s.Initcontainer.Args[0],
		"initcontainer.args.Command":       &s.Initcontainer.Args[1],
		"initcontainer.resources.limits":   &limitsStr,
		"initcontainer.resources.requests": &requestStr,
		"sidecarVolume.Name":               &s.SidecarVolume.Name,
		"sidecarVolumeMount.MountPath":     &s.SidecarVolumeMount.MountPath,
		"env.Name":                         &s.Env.Name,
		"env.Value":                        &s.Env.Value,
	}

	anno := GetAnnotationsByPrefix(a, sidecarAnnotationPrefix)
	for _, v := range anno.Annotations {
		fieldName := strings.TrimPrefix(v.Name, sidecarAnnotationPrefix)
		if pointer, ok := annoField[fieldName]; ok {
			if !s.setValue(pointer, ao, annotation, v) {
				return false
			}
		}
	}

	s.SidecarVolumeMount.Name = s.SidecarVolume.Name
	s.Initcontainer.VolumeMounts = []corev1.VolumeMount{s.SidecarVolumeMount}

	// add requests and limits to initcontainer
	if limitsStr != "nil" {
		limits := make(corev1.ResourceList)
		err := json.Unmarshal([]byte(limitsStr), &limits)
		if err != nil {
			log.Error(err, "unmarshal limitsStr error")
			return false
		}
		s.Initcontainer.Resources.Limits = limits
	}

	if requestStr != "nil" {
		requests := make(corev1.ResourceList)
		err := json.Unmarshal([]byte(requestStr), &requests)
		if err != nil {
			log.Error(err, "unmarshal requestStr error")
			return false
		}
		s.Initcontainer.Resources.Requests = requests
	}

	// the sidecar volume's type is determined
	s.SidecarVolume.VolumeSource.EmptyDir = nil

	return true
}