Azure#
An Azure subscription is needed to create and manage cluster on Azure. The following criteria must be met:
- An Azure subscription
- A Stakater user (ask Stakater team for the email to use for this user) with privileges to create an application in Azure AD (Recommended). Create a Service Principal to be used by SAAP installer if you do not want to give permissions to Azure AD.
- Resource limits must be applied on the subscription and the following resources must be allowed to be created:
| Type | Limit |
|---|---|
| Virtual Machines | Varies. The limit should be 12 initially. (Initial deployment is 3 control plane + 3 infra + 3 worker) |
| Regional vCPUs | The limit should be A x B x 2 , where A = no. of VMS (worker + infra + control plane), B = vCPUs per VM) |
| Public IP addresses | 5 |
| Private IP Addresses | 7 |
| Network Interfaces | 6 |
| Network Load Balancers | 3 |
| Virtual Networks | 1 |
| StandardStorageSnapshots | 10000 (depends on how many disks are used) and backup duration |
| Machine Specifications | 6 machines of 8x32x120G |
| Region | Region will be identified by the customer |
Autoscaling#
Node autoscaling is available on Azure. You can configure the autoscaler option to automatically scale the number of machines in a cluster.