Add kubevirt addon

The addon installs kubvirt v1.0.0 (corresponds to OpenShift 4.14) in
the managed clusters. We may switch later to latest release, starting
with something more stable.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>

test/addons/kubevirt/start

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
+import os
+import sys
+
+import drenv
+from drenv import kubectl
+
+VERSION = "v1.0.0"
+BASE_URL = "https://github.com/kubevirt/kubevirt/releases/download"
+NAMESPACE = "kubevirt"
+
+
+def deploy(cluster):
+    print("Deploying kubevirt operator")
+    kubectl.apply(
+        f"--filename={BASE_URL}/{VERSION}/kubevirt-operator.yaml",
+        context=cluster,
+    )
+
+    print("Waiting until virt-operator is rolled out")
+    kubectl.rollout(
+        "status",
+        "deploy/virt-operator",
+        f"--namespace={NAMESPACE}",
+        context=cluster,
+    )
+
+    print("Deploying kubevirt cr")
+    kubectl.apply(
+        f"--filename={BASE_URL}/{VERSION}/kubevirt-cr.yaml",
+        context=cluster,
+    )
+
+
+def wait(cluster):
+    print("Waiting until kubevirt cr reports phase")
+    drenv.wait_for(
+        "kubevirt.kubevirt.io/kubevirt",
+        namespace=NAMESPACE,
+        output="jsonpath={.status.phase}",
+        timeout=60,
+        profile=cluster,
+    )
+
+    print("Waiting until kubevirt cr phase is deployed")
+    kubectl.wait(
+        "kubevirt.kubevirt.io/kubevirt",
+        "--for=jsonpath={.status.phase}=Deployed",
+        f"--namespace={NAMESPACE}",
+        "--timeout=300s",
+        context=cluster,
+    )
+
+
+if len(sys.argv) != 2:
+    print(f"Usage: {sys.argv[0]} cluster")
+    sys.exit(1)
+
+os.chdir(os.path.dirname(__file__))
+cluster = sys.argv[1]
+
+deploy(cluster)
+wait(cluster)