Initial commit. (#659)

Co-authored-by: Paul Lewis <pjlewisuk@users.noreply.github.com>

bicep/aksagentpool.bicep

@@ -40,7 +40,7 @@ param podSubnetID string = ''
 @allowed(['Linux','Windows'])
 param osType string
 
-@allowed(['Ubuntu','Windows2019','Windows2022'])
+@allowed(['AzureLinux','Ubuntu','Windows2019','Windows2022'])
 param osSKU string
 
 @description('Assign a public IP per node')

bicep/main.bicep

@@ -1172,6 +1172,7 @@ var systemPoolBase = {
   count: agentCount
   mode: 'System'
   osType: 'Linux'
+  osSku: osSKU=='AzureLinux' ? osSKU : 'Ubuntu'
   maxPods: 30
   type: 'VirtualMachineScaleSets'
   vnetSubnetID: !empty(aksSubnetId) ? aksSubnetId : null
@@ -1376,8 +1377,8 @@ output aksOidcIssuerUrl string = oidcIssuer ? aks.properties.oidcIssuerProfile.i
 @description('The User Node pool OS')
 param osType string = 'Linux'
 
-@allowed(['Ubuntu','Windows2019','Windows2022'])
-@description('The User Node pool OS SKU')
+@allowed(['AzureLinux','Ubuntu','Windows2019','Windows2022'])
+@description('User Node pool OS SKU')
 param osSKU string = 'Ubuntu'
 
 var poolName = osType == 'Linux' ? nodePoolName : take(nodePoolName, 6)

helper/src/components/clusterTab.js

@@ -127,6 +127,7 @@ export default function ({ defaults, tabValues, updateFn, featureFlag, invalidAr
                             onChange={(ev, { key }) => updateFn("osSKU", key)}
                             options={[
                                 { key: 'Ubuntu', text: 'Ubuntu', disabled:cluster.osType!=='Linux' },
+                                { key: 'AzureLinux', text: 'Azure Linux', disabled:cluster.osType!=='Linux' },
                                 { key: 'Windows2022', text: 'Windows Server 2022', disabled:cluster.osType!=='Windows' }
                             ]}
                             styles={{ dropdown: { width: "100%", minWidth: "200px" } }}