@Override
    public ClusterSpec getClusterSpecWithVersion(Version version) {
        return ClusterSpec.request(getClusterSpecType(), getClusterSpecId())
                          .vespaVersion(version)
                          .stateful(true)
                          .exclusive(true)
                          .build();
    }
Base class for config server and controller infrastructure applications.

@author hakonhall
service-monitor/src/main/java/com/yahoo/vespa/service/duper/ConfigServerLikeApplication.java