Function removeGenericResources

cli/command/service/update.go:591–622

(flags *pflag.FlagSet, spec *swarm.TaskSpec)

}

func removeGenericResources(flags *pflag.FlagSet, spec *swarm.TaskSpec) error {
	// Can only be Discrete Resources
	if !flags.Changed(flagGenericResourcesRemove) {
		return nil
	}

	if spec.Resources == nil {
		spec.Resources = &swarm.ResourceRequirements{}
	}

	if spec.Resources.Reservations == nil {
		spec.Resources.Reservations = &swarm.Resources{}
	}

	values := flags.Lookup(flagGenericResourcesRemove).Value.(*opts.ListOpts).GetSlice()

	m, err := buildGenericResourceMap(spec.Resources.Reservations.GenericResources)
	if err != nil {
		return err
	}

	for _, toRemoveRes := range values {
		if _, ok := m[toRemoveRes]; !ok {
			return fmt.Errorf("could not find generic-resource `%s` to remove it", toRemoveRes)
		}

		delete(m, toRemoveRes)
	}

	spec.Resources.Reservations.GenericResources = buildGenericResourceList(m)
	return nil
}

func updatePlacementConstraints(flags *pflag.FlagSet, placement *swarm.Placement) {
	if flags.Changed(flagConstraintAdd) {