Gamezure

Azure Game Streaming VM management

Gamezure is a serverless application/API, which allows you to define a Pool of VMs; with an additional API call, Gamezure will take care of having as many VMs as specified in that pool - see docs below. The pool not only consists of the created VMs, but also of two networks, two NICs per VM and a network security group for each of those networks, the machines have an internal network (e.g. for gameservers) and an external interface, reachable from the public Internet. The API is built using C# and Azure Functions, making use of the Durable Functions framework. Data is stored in a Cosmos Db, which uses serverless billing to reduce the baseline cost, as there is not much happening on database side.

Prerequisites

• An Azure Subscription
• An Azure Service Principal
• Terraform
• .NET Core 3.1

Environment Variables

Name	Description
AZURE_SUBSCRIPTION_ID	Azure Subscription ID; id property when executing az account show
AZURE_TENANT_ID	Azure Tenant ID; tenantId property when executing az account show
TF_VAR_sp_client_id	ID of the Azure Service Principal who should have permissions to change the VM pool, appId in az ad sp list --show-mine

Setting up infrastructure in Azure

Init Terraform:

terraform init -backend-config='.\config\backend.local.config.tf'

Apply

terraform apply

Development Prerequisites

• An Azure Subscription
• An Azure Service Principal
• .NET Core 3.1 SDK
• CosmosDB, either on Azure, or using the CosmosDB Emulator
• Azure BlobStorage, or use Azurite as a local storage emulator.

Docs

• Application flow

Routes

Adding a pool

{{BASE_URI}}/AddPool?code={{AZURE_FUNCTION_KEY}}

With a body consisting like the following example JSON:

{
"id": "pool-2",
"resourceGroupName": "rg-pool1-test",
"location": "westeurope",
"desiredVmCount": 2
}

Trigger pool VM check

{{BASE_URI}}/CreateVmOrchestrator_HttpStart??code={{AZURE_FUNCTION_KEY}}&poolId={{poolId}}