E2E: Use default VM machine type when not overriden

.github/workflows/e2e-test-azure-weekly.yml

@@ -39,7 +39,7 @@ jobs:
           controlNodesCount: "1"
           autoscale: "false"
           cloudProvider: "azure"
-          machineType: "Standard_DC4as_v5"
+          azure_credentials: ${{ secrets.AZURE_E2E_CREDENTIALS }}
           sonobuoyTestSuiteCmd: '--plugin e2e --plugin-env e2e.E2E_FOCUS="\[Conformance\]" --plugin-env e2e.E2E_SKIP="for service with type clusterIP|HostPort validates that there is no conflict between pods with same hostPort but different hostIP and protocol" --plugin https://raw.githubusercontent.com/vmware-tanzu/sonobuoy-plugins/master/cis-benchmarks/kube-bench-plugin.yaml --plugin https://raw.githubusercontent.com/vmware-tanzu/sonobuoy-plugins/master/cis-benchmarks/kube-bench-master-plugin.yaml'
           kubernetesVersion: ${{ matrix.version }}
           azureClientSecret: ${{ secrets.AZURE_E2E_CLIENT_SECRET }}

.github/workflows/e2e-test-azure.yml

@@ -34,7 +34,7 @@ jobs:
           controlNodesCount: "1"
           autoscale: "false"
           cloudProvider: "azure"
-          machineType: "Standard_DC4as_v5"
+          azure_credentials: ${{ secrets.AZURE_E2E_CREDENTIALS }}
           azureClientSecret: ${{ secrets.AZURE_E2E_CLIENT_SECRET }}
           azureResourceGroup: ${{ steps.az_resource_group_gen.outputs.res_group_name }}
           # TODO: Remove E2E_SKIP once AB#2174 is resolved

.github/workflows/e2e-test-gcp-weekly.yml

@@ -25,7 +25,6 @@ jobs:
           controlNodesCount: "1"
           autoscale: "false"
           cloudProvider: "gcp"
-          machineType: "n2d-standard-4"
           gcp_service_account_json: ${{ secrets.GCP_SERVICE_ACCOUNT }}
           gcpClusterServiceAccountKey: ${{ secrets.GCP_CLUSTER_SERVICE_ACCOUNT }}
           sonobuoyTestSuiteCmd: '--plugin e2e --plugin-env e2e.E2E_FOCUS="\[Conformance\]" --plugin-env e2e.E2E_SKIP="for service with type clusterIP|HostPort validates that there is no conflict between pods with same hostPort but different hostIP and protocol" --plugin https://raw.githubusercontent.com/vmware-tanzu/sonobuoy-plugins/master/cis-benchmarks/kube-bench-plugin.yaml --plugin https://raw.githubusercontent.com/vmware-tanzu/sonobuoy-plugins/master/cis-benchmarks/kube-bench-master-plugin.yaml'

.github/workflows/e2e-test-gcp.yml

@@ -20,7 +20,6 @@ jobs:
           controlNodesCount: "1"
           autoscale: "false"
           cloudProvider: "gcp"
-          machineType: "n2d-standard-4"
           gcp_service_account_json: ${{ secrets.GCP_SERVICE_ACCOUNT }}
           gcpClusterServiceAccountKey: ${{ secrets.GCP_CLUSTER_SERVICE_ACCOUNT }}
           # TODO: Remove E2E_SKIP once AB#2174 is resolved

.github/workflows/e2e-test-manual.yml

@@ -24,14 +24,6 @@ on:
           - "azure"
         default: "gcp"
         required: true
-      machineType:
-        description: "VM machine type. Make sure it matches selected cloud provider!"
-        type: choice
-        options:
-          - "n2d-standard-4" # GCP
-          - "Standard_DC4as_v5" # Azure
-        default: "n2d-standard-4"
-        required: true
       sonobuoyTestSuiteCmd:
         description: "Which tests should be run? Check README for guidance!"
         default: "--mode quick"
@@ -49,6 +41,11 @@ on:
         type: boolean
         default: true
         required: false
+      machineType:
+        description: "Override VM machine type. Leave as 'default' or empty to use the default VM type for the selected cloud provider."
+        type: string
+        default: "default"
+        required: false
 
 jobs:
   e2e-test-manual: