private Chain<Filter> getChain(String chainName) {
        return http.getFilterChains().allChains().getComponent(ComponentSpecification.fromString(chainName));
    }
@author gjoranv
@author Tony Vaagenes
@since 5.1.26
config-model/src/test/java/com/yahoo/vespa/model/container/http/FilterChainsTest.java