When preparing an elastic cluster you must set the server level. Here is a list with the levels and its explanation
GCP Type | Azure Type | Virtual CPUs | Memory | Level | Comment |
n1-standard-1 | StandardDS1V2 | 1 | 3.75 GB | 5 | No Internet access |
n1-standard-1 | StandardDS1V2 | 1 | 3.75 GB | 6 | Internet access |
n1-standard-2 | StandardDS2V2 | 2 | 7.50 GB | 7 | |
n1-standard-4 | StandardDS3V2 | 4 | 15 GB | 8 | |
n1-standard-8 | StandardDS4V2 | 8 | 30 GB | 9 | |
n1-standard-16 | StandardDS5V2 | 16 | 60 GB | 10 |
A trial server is always set to level 5 (without Internet access)