Add Azure Linux 3 test spec

Tiltfile

@@ -414,6 +414,8 @@ def get_addons(flavor_name):
     addon_cmd += "; " + helm_cmd + " --kubeconfig ./${CLUSTER_NAME}.kubeconfig install --repo https://raw.githubusercontent.com/kubernetes-sigs/cloud-provider-azure/master/helm/repo cloud-provider-azure --generate-name --set infra.clusterName=${CLUSTER_NAME} --set cloudControllerManager.clusterCIDR=${CIDR_LIST}"
     if "flatcar" in flavor_name:  # append caCetDir location to the cloud-provider-azure helm install command for flatcar flavor
         addon_cmd += " --set-string cloudControllerManager.caCertDir=/usr/share/ca-certificates"
+    elif "azurelinux" in flavor_name:  # append caCetDir location to the cloud-provider-azure helm install command for Azure Linux flavor
+        addon_cmd += " --set-string cloudControllerManager.caCertDir=/etc/pki/tls"
 
     if "azure-cni-v1" in flavor_name:
         addon_cmd += "; " + kubectl_cmd + " apply -f ./templates/addons/azure-cni-v1.yaml --kubeconfig ./${CLUSTER_NAME}.kubeconfig"

templates/flavors/azurelinux/kustomization.yaml

@@ -0,0 +1,11 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: default
+resources:
+- ../default
+patches:
+- path: patches/control-plane.yaml
+- path: patches/nodepool-machine-template.yaml
+
+sortOptions:
+  order: fifo

templates/flavors/azurelinux/patches/control-plane.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
+kind: AzureMachineTemplate
+metadata:
+  name: ${CLUSTER_NAME}-control-plane
+spec:
+  template:
+    spec:
+      image:
+        computeGallery:
+          gallery: ClusterAPI-f72ceb4f-5159-4c26-a0fe-2ea738f0d019
+          name: capi-azurelinux-3
+          version: ${KUBERNETES_VERSION:1}

templates/flavors/azurelinux/patches/nodepool-machine-template.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
+kind: AzureMachineTemplate
+metadata:
+  name: ${CLUSTER_NAME}-md-0
+spec:
+  template:
+    spec:
+      image:
+        computeGallery:
+          gallery: ClusterAPI-f72ceb4f-5159-4c26-a0fe-2ea738f0d019
+          name: capi-azurelinux-3
+          version: ${KUBERNETES_VERSION:1}