@Override
    public void validate(ChangeContext context) {
        findConfigChangesFromModels(context.previousModel(), context.model(), context.deployState().getDeployLogger()).forEach(context::require);
    }
Inspects the configuration in the new and old Vespa model to determine which services that require restart
config-model/src/main/java/com/yahoo/vespa/model/application/validation/change/ConfigValueChangeValidator.java