These will be the next two RW external store.
es4 and es5 will go RO once this ticket is done.
es6
- es2035 master
- es2036
- es2037
- Pending dbctl configuration
- etcd.php changes
- Set candidate masters
es7
- es2038 master
- es2039
- es2040
- Pending dbctl configuration
- etcd.php changes
- Set candidate masters