test: run external storage test with k8s 1.21 suites

test: run external exe test on 1.20

test: run external storage test with k8s 1.21 suites

test: run external exe test on 1.20

Author: andyzhangx

deploy/example/storageclass-blobfuse.yaml

@@ -6,7 +6,7 @@ metadata:
 provisioner: blob.csi.azure.com
 parameters:
   skuName: Standard_LRS  # available values: Standard_LRS, Premium_LRS, Standard_GRS, Standard_RAGRS
-reclaimPolicy: Retain  # if set as "Delete" container would be removed after pvc deletion
+reclaimPolicy: Delete
 volumeBindingMode: Immediate
 mountOptions:
   - -o allow_other

test/external-e2e/run.sh

@@ -24,8 +24,8 @@ install_ginkgo () {
 }
 
 setup_e2e_binaries() {
-    # download k8s external e2e binary for kubernetes v1.21
-    curl -sL https://storage.googleapis.com/kubernetes-release/release/v1.21.0/kubernetes-test-linux-amd64.tar.gz --output e2e-tests.tar.gz
+    # download k8s external e2e binary for kubernetes v1.20
+    curl -sL https://storage.googleapis.com/kubernetes-release/release/v1.20.0/kubernetes-test-linux-amd64.tar.gz --output e2e-tests.tar.gz
     tar -xvf e2e-tests.tar.gz && rm e2e-tests.tar.gz
 
     # install the blob csi driver