Feat: envbinding support cloud resource deploy and share (#2734)

* Feat: envbinding support cloud resource deploy and bind

* Fix: change bind-cloud-resource to share-cloud-resource

docs/examples/envbinding/deploy-and-share-cloud-resource.yaml

@@ -0,0 +1,78 @@
+apiVersion: core.oam.dev/v1beta1
+kind: Application
+metadata:
+  name: rds-app
+  namespace: project-1
+spec:
+  components:
+    - name: db
+      type: alibaba-rds
+      properties:
+        instance_name: db
+        account_name: kubevela
+        password: my-password
+        writeConnectionSecretToRef:
+          name: project-1-rds-conn-credential
+  policies:
+    - name: env-policy
+      type: env-binding
+      properties:
+        envs:
+          # 部署 RDS 给杭州集群
+          - name: hangzhou
+            placement:
+              clusterSelector:
+                name: cluster-hangzhou
+            patch:
+              components:
+                - name: db
+                  type: alibaba-rds
+                  properties:
+                    # region: hangzhou
+                    instance_name: hangzhou_db
+          # 部署 RDS 给香港集群
+          - name: hongkong
+            placement:
+              clusterSelector:
+                name: cluster-hongkong
+              namespaceSelector:
+                name: hk-project-1
+            patch:
+              components:
+                - name: db
+                  type: alibaba-rds
+                  properties:
+                    # region: hongkong
+                    instance_name: hongkong_db
+                    writeConnectionSecretToRef:
+                      name: hk-project-rds-credential
+
+  workflow:
+    steps:
+      # 部署 RDS 给杭州区用
+      - name: deploy-hangzhou-rds
+        type: deploy-cloud-resource
+        properties:
+          env: hangzhou
+      # 将给杭州区用的 RDS 共享给北京区
+      - name: share-hangzhou-rds-to-beijing
+        type: share-cloud-resource
+        properties:
+          env: hangzhou
+          placements:
+            - cluster: cluster-beijing
+      # 部署 RDS 给香港区用
+      - name: deploy-hongkong-rds
+        type: deploy-cloud-resource
+        properties:
+          env: hongkong
+      # 将给香港区用的 RDS 共享给香港区其他项目用
+      - name: share-hongkong-rds-to-other-namespace
+        type: share-cloud-resource
+        properties:
+          env: hongkong
+          placements:
+            - cluster: cluster-hongkong
+              namespace: hk-project-2
+            - cluster: cluster-hongkong
+              namespace: hk-project-3