Add Azure Spot include file

Author: timwarner-msft

includes/resource-graph/samples/bycat/azure-spot.md

@@ -0,0 +1,37 @@
+---
+author: timwarner-msft
+ms.service: resource-graph
+ms.topic: include
+ms.date: 03/18/2022
+ms.author: timwarner
+ms.custom: generated
+---
+
+### Compare the Spot eviction rate across multiple VM SKUs and regions
+
+This query gets the Spot eviction rate across multiple VM SKUs and regions. Spot eviction rate is presented as a percentage range. The results are sorted by VM SKU and region in ascending order.
+
+```kusto
+SpotResources
+| where type =~ 'microsoft.compute/skuspotevictionrate/location'
+| where sku.name in~ ('standard_d2s_v4', 'standard_d4s_v4')
+| where location in~ ('eastus', 'southcentralus')
+| project skuName = tostring(sku.name), location, spotEvictionRate = tostring(properties.evictionRate)
+| order by skuName asc, location asc
+```
+
+### Compare the latest Spot price across multiple VM SKUs and regions for an OS type
+
+This query gets the latest Spot price across multiple VM SKUs and regions for an OS type. The results are sorted by price in ascending order.
+
+```kusto
+SpotResources
+| where type =~ 'microsoft.compute/skuspotpricehistory/ostype/location'
+| where sku.name in~ ('standard_d2s_v4', 'standard_d4s_v4')
+| where properties.osType =~ 'linux'
+| where location in~ ('eastus', 'southcentralus')
+| project skuName = tostring(sku.name), osType = tostring(properties.osType), location, latestSpotPriceUSD = todouble(properties.spotPrices[0].priceUSD)
+| order by latestSpotPriceUSD asc
+```
+
+---