feat: add option for keda addon container-service - `avm/res/containe…

…r-service/managed-cluster` (Azure#1691)

## Description

This is adding in the option to enable Keda on an AKS cluster. 

I would probably do this one after
Azure#1682 as i used my
main branch that has the cost anlayasis changes in it.


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Fixes Azure#123
Fixes Azure#456
Closes Azure#123
Closes Azure#456
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## Pipeline Reference

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## Type of Change

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [ ] Update to CI Environment or utlities (Non-module effecting
changes)
- [X] Azure Verified Module updates:
- [ ] Bugfix containing backwards compatible bug fixes, and I have NOT
bumped the MAJOR or MINOR version in `version.json`:
- [ ] Someone has opened a bug report issue, and I have included "Closes
#{bug_report_issue_number}" in the PR description.
- [ ] The bug was found by the module author, and no one has opened an
issue to report it yet.
- [ ] Feature update backwards compatible feature updates, and I have
bumped the MINOR version in `version.json`.
- [ ] Breaking changes and I have bumped the MAJOR version in
`version.json`.
  - [ ] Update to documentation

## Checklist

- [X] I'm sure there are no other open Pull Requests for the same
update/change
- [X] I have run `Set-AVMModule` locally to generate the supporting
module files.
- [X] My corresponding pipelines / checks run clean and green without
any errors or warnings

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---------

Signed-off-by: PixelRobots <[email protected]>

avm/res/container-service/managed-cluster/README.md

@@ -1536,6 +1536,7 @@ module managedCluster 'br/public:avm/res/container-service/managed-cluster:<vers
 | [`httpProxyConfig`](#parameter-httpproxyconfig) | object | Configurations for provisioning the cluster with HTTP proxy servers. |
 | [`identityProfile`](#parameter-identityprofile) | object | Identities associated with the cluster. |
 | [`ingressApplicationGatewayEnabled`](#parameter-ingressapplicationgatewayenabled) | bool | Specifies whether the ingressApplicationGateway (AGIC) add-on is enabled or not. |
+| [`kedaAddon`](#parameter-kedaaddon) | bool | Enables Kubernetes Event-driven Autoscaling (KEDA). |
 | [`kubeDashboardEnabled`](#parameter-kubedashboardenabled) | bool | Specifies whether the kubeDashboard add-on is enabled or not. |
 | [`kubernetesVersion`](#parameter-kubernetesversion) | string | Version of Kubernetes specified when creating the managed cluster. |
 | [`loadBalancerSku`](#parameter-loadbalancersku) | string | Specifies the sku of the load balancer used by the virtual machine scale sets used by nodepools. |
@@ -2794,6 +2795,14 @@ Specifies whether the ingressApplicationGateway (AGIC) add-on is enabled or not.
 - Type: bool
 - Default: `False`
 
+### Parameter: `kedaAddon`
+
+Enables Kubernetes Event-driven Autoscaling (KEDA).
+
+- Required: No
+- Type: bool
+- Default: `False`
+
 ### Parameter: `kubeDashboardEnabled`
 
 Specifies whether the kubeDashboard add-on is enabled or not.

avm/res/container-service/managed-cluster/main.bicep

@@ -352,6 +352,9 @@ param httpProxyConfig object?
 @description('Optional. Identities associated with the cluster.')
 param identityProfile object?
 
+@description('Optional. Enables Kubernetes Event-driven Autoscaling (KEDA).')
+param kedaAddon bool = false
+
 @description('Optional. The customer managed key definition.')
 param customerManagedKey customerManagedKeyType
 
@@ -612,6 +615,11 @@ resource managedCluster 'Microsoft.ContainerService/managedClusters@2023-07-02-p
     disableLocalAccounts: disableLocalAccounts
     nodeResourceGroup: nodeResourceGroup
     enablePodSecurityPolicy: enablePodSecurityPolicy
+    workloadAutoScalerProfile: {
+      keda: {
+        enabled: kedaAddon
+      }
+    }
     networkProfile: {
       networkDataplane: networkDataplane
       networkPlugin: networkPlugin

avm/res/container-service/managed-cluster/main.json

@@ -6,7 +6,7 @@
     "_generator": {
       "name": "bicep",
       "version": "0.26.54.24096",
-      "templateHash": "3806996475520060110"
+      "templateHash": "2318180309482229247"
     },
     "name": "Azure Kubernetes Service (AKS) Managed Clusters",
     "description": "This module deploys an Azure Kubernetes Service (AKS) Managed Cluster.",
@@ -1378,6 +1378,13 @@
         "description": "Optional. Identities associated with the cluster."
       }
     },
+    "kedaAddon": {
+      "type": "bool",
+      "defaultValue": false,
+      "metadata": {
+        "description": "Optional. Enables Kubernetes Event-driven Autoscaling (KEDA)."
+      }
+    },
     "customerManagedKey": {
       "$ref": "#/definitions/customerManagedKeyType",
       "metadata": {
@@ -1575,6 +1582,11 @@
         "disableLocalAccounts": "[parameters('disableLocalAccounts')]",
         "nodeResourceGroup": "[parameters('nodeResourceGroup')]",
         "enablePodSecurityPolicy": "[parameters('enablePodSecurityPolicy')]",
+        "workloadAutoScalerProfile": {
+          "keda": {
+            "enabled": "[parameters('kedaAddon')]"
+          }
+        },
         "networkProfile": {
           "networkDataplane": "[parameters('networkDataplane')]",
           "networkPlugin": "[parameters('networkPlugin')]",