Add regional dr environment without a hub

For testing kube object projection in a setup without a hub.

Based temporarily on RamenDR#903

Part-of: RamenDR#902
Signed-off-by: Nir Soffer <nsoffer@redhat.com>

test/README.md

@@ -556,6 +556,9 @@ The environments files are located in the `envs` directory.
 - `regional-dr.yaml` - for testing regional DR using a hub cluster and 2
   managed clusters with Ceph storage.
 
+- `regional-dr-hubless.yaml` - for testing regional DR using a setup
+  without a hub.
+
 - `regional-dr-external.yaml.example` - A starting point for creating
    environment for testing regional DR using with external storage.
 

test/envs/regional-dr-hubless.yaml

@@ -0,0 +1,44 @@
+# SPDX-FileCopyrightText: The RamenDR authors
+# SPDX-License-Identifier: Apache-2.0
+
+# Enviroment for testing Regional-DR in a setup without a hub.
+---
+name: "rdr-hubless"
+
+ramen:
+  hub: null
+  clusters: [dr1, dr2]
+  topology: regional-dr
+
+templates:
+  - name: "dr-cluster"
+    driver: kvm2
+    container_runtime: containerd
+    network: default
+    memory: "6g"
+    extra_disks: 1
+    disk_size: "50g"
+    workers:
+      - addons:
+          - name: cert-manager
+          - name: rook-operator
+          - name: rook-cluster
+          - name: rook-pool
+          - name: rook-toolbox
+      - addons:
+          - name: csi-addons
+          - name: olm
+          - name: minio
+          - name: velero
+          - name: volsync
+
+profiles:
+  - name: "dr1"
+    template: "dr-cluster"
+  - name: "dr2"
+    template: "dr-cluster"
+
+workers:
+  - addons:
+      - name: rbd-mirror
+        args: ["dr1", "dr2"]