anchor.diff:  ip-172-20-75-78.ec2.internal  master  True
   ip-172-20-94-216.ec2.internal node  True
   
  -Your cluster cluster.kubernetes-aws.io is ready
  +Your cluster example.cluster.com is ready
   ```
   
   Note that all masters are spread across different AZs.
  
positive.code: ip-172-20-63-55.ec2.internal  node  True
  ip-172-20-75-78.ec2.internal  node  True
  
  Your cluster cluster.k8s.local is ready
  ```
  
  ==== Multi-master, multi-node, multi-az gossip-based cluster
  
negative.code: 
  ```
  $ kops validate cluster
  Using cluster from kubectl context: example.cluster.k8s.local
  
  Validating cluster example.cluster.k8s.local
  
  INSTANCE GROUPS
  NAME      ROLE  MACHINETYPE MIN MAX SUBNETS
  master-eu-central-1a Master  m3.medium 1 1 eu-central-1a
  master-eu-central-1b Master  m3.medium 1 1 eu-central-1b
  master-eu-central-1c Master  c4.large  1 1 eu-central-1c
  nodes     Node  t2.medium 5 5 eu-central-1a,eu-central-1b,eu-central-1c
  
  NODE STATUS
  NAME        ROLE  READY
  