add aks node pool availability zones

Author: matudose

RELEASE_NOTES.md

@@ -1,6 +1,9 @@
 Release Notes
 =============
 
+## 1.9.8
+* AKS Cluster: support for node pool availability zones
+
 ## 1.9.7
 * AKS Cluster: support for Sku and Tier. Support for pod subnet in agent pool config. Support for node pool autoscaling
 * CosmosDB: Add support for Gremlin Graphs

docs/content/api-overview/resources/aks-cluster.md

@@ -57,6 +57,7 @@ The Agent Pool builder (`agentPool`) constructs agent pools in the AKS cluster.
 | pod_subnet                        | Sets the name of a virtual network subnet where this AKS cluster should be attached.             |
 | subnet                            | Sets the name of a virtual network subnet where this AKS cluster should be attached.             |
 | vm_size                           | Sets the size of the VM's in the agent pool.                                                     |
+| add_availability_zones            | Sets the Azure availability zones for the VM's in the agent pool.                                |
 | vnet                              | Sets the name of a virtual network in the same region where this AKS cluster should be attached. |
 | enable_autoscale                  | Enables node pool autoscale                                                                      |
 | autoscale_scale_down_mode         | Optional. Use with enable_autoscaling. Options are Delete and Deallocate                         |

src/Farmer/Arm/ContainerService.fs

@@ -183,6 +183,7 @@ type ManagedCluster = {
             OsDiskSize: int<Gb>
             OsType: OS
             VmSize: VMSize
+            AvailabilityZones: string list
             VirtualNetworkName: ResourceName option
             SubnetName: ResourceName option
             PodSubnetName: ResourceName option
@@ -295,6 +296,7 @@ type ManagedCluster = {
                                 osDiskSizeGB = agent.OsDiskSize
                                 osType = string agent.OsType
                                 vmSize = agent.VmSize.ArmValue
+                                availabilityZones = agent.AvailabilityZones
                                 vnetSubnetID =
                                     match agent.VirtualNetworkName, agent.SubnetName with
                                     | Some vnet, Some subnet -> subnets.resourceId(vnet, subnet).Eval()

src/Farmer/Builders/Builders.ContainerService.fs

@@ -19,6 +19,7 @@ type AgentPoolConfig = {
     OsDiskSize: int<Gb>
     OsType: OS
     VmSize: VMSize
+    AvailabilityZones: string list
     VirtualNetworkName: ResourceName option
     SubnetName: ResourceName option
     PodSubnetName: ResourceName option
@@ -42,6 +43,7 @@ type AgentPoolConfig = {
         SubnetName = None
         PodSubnetName = None
         VmSize = Standard_DS2_v2
+        AvailabilityZones = []
         AutoscaleSetting = None
         ScaleDownMode = None
         MinCount = None
@@ -185,6 +187,7 @@ type AksConfig = {
                         SubnetName = agentPool.SubnetName
                         PodSubnetName = agentPool.PodSubnetName
                         VmSize = agentPool.VmSize
+                        AvailabilityZones = agentPool.AvailabilityZones
                         VirtualNetworkName = agentPool.VirtualNetworkName
                         AutoscaleSetting = agentPool.AutoscaleSetting
                         ScaleDownMode = agentPool.ScaleDownMode
@@ -282,6 +285,12 @@ type AgentPoolBuilder() =
     [<CustomOperation "os_type">]
     member _.OsType(state: AgentPoolConfig, os) = { state with OsType = os }
 
+    [<CustomOperation "add_availability_zones">]
+    member _.AddAvailabilityZone(state: AgentPoolConfig, availabilityZones: string list) = {
+        state with
+            AvailabilityZones = state.AvailabilityZones @ availabilityZones
+    }
+
     /// Sets the name of a virtual network subnet where this AKS cluster should be attached.
     [<CustomOperation "subnet">]
     member _.SubnetName(state: AgentPoolConfig, subnetName) = {

src/Tests/test-data/aks-with-acr.json

@@ -53,6 +53,7 @@
       "properties": {
         "agentPoolProfiles": [
           {
+            "availabilityZones": [],
             "count": 3,
             "mode": "System",
             "name": "nodepool1",