add variable from secret when applying istio cr (#1877)

test/e2e/conformance/tests/go-wasm-basic-auth-template.yaml

@@ -0,0 +1,77 @@
+# Copyright (c) 2022 Alibaba Group Holding Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+apiVersion: v1
+kind: Secret
+metadata:
+  name: auth-secret
+  namespace: higress-conformance-infra
+type: Opaque
+stringData:
+  auth.credential1: "admin:123456"
+
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: auth-secret
+  namespace: higress-system
+type: Opaque
+stringData:
+  auth.credential2: "guest:abc"
+
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+  name: wasmplugin-basic-auth
+  namespace: higress-conformance-infra
+spec:
+  ingressClassName: higress
+  rules:
+    - host: "foo.com"
+      http:
+        paths:
+          - pathType: Prefix
+            path: "/foo"
+            backend:
+              service:
+                name: infra-backend-v1
+                port:
+                  number: 8080
+---
+apiVersion: extensions.higress.io/v1alpha1
+kind: WasmPlugin
+metadata:
+  name: basic-auth
+  namespace: higress-system
+spec:
+  defaultConfig:
+    consumers:
+      - credential: ${secret.higress-conformance-infra/auth-secret.auth.credential1}
+        name: consumer1
+      - credential: ${secret.auth-secret.auth.credential2}
+        name: consumer2
+    global_auth: false
+  defaultConfigDisable: false
+  matchRules:
+    - config:
+        allow:
+          - consumer1
+      configDisable: false
+      ingress:
+        - higress-conformance-infra/wasmplugin-basic-auth
+  url: oci://higress-registry.cn-hangzhou.cr.aliyuncs.com/plugins/go-basic-auth:1.0.0