public static ClusterSpec clusterSpec(ClusterSpec.Type type, String clusterId) {
        return ClusterSpec.request(type, ClusterSpec.Id.from(clusterId)).vespaVersion("7").build();
    }
A provisioning tester which
- Supports dynamic provisioning (only).
- Optionally replicates the actual AWS setup and logic used on Vespa Cloud.
- Supports autoscaling testing.

TODO: All provisioning testing should migrate to use this, and then the provisioning tester should be collapsed
      into this.   ... or we should just use autoscalingtester for everything.

@author bratseth
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/provisioning/DynamicProvisioningTester.java