@Override
    public void getConfig(ChainsConfig.Builder builder) {
        ChainsConfigGenerator.generate(builder, allChains().allComponents());
        ChainedComponentConfigGenerator.generate(builder, allComponents());
    }
Root config producer the whole chains model(contains chains and components).

@author Tony Vaagenes
@author gjoranv
config-model/src/main/java/com/yahoo/vespa/model/container/component/chain/Chains.java