feat: wasm support opa (Open Policy Agent) (#760)

test/e2e/conformance/tests/go-wasm-opa.go

@@ -0,0 +1,83 @@
+// 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.
+
+package tests
+
+import (
+	stdHttp "net/http"
+	"testing"
+
+	"github.com/alibaba/higress/test/e2e/conformance/utils/http"
+	"github.com/alibaba/higress/test/e2e/conformance/utils/suite"
+)
+
+func init() {
+	Register(WasmPluginsOpa)
+}
+
+var WasmPluginsOpa = suite.ConformanceTest{
+	ShortName:   "WasmPluginsOpa",
+	Description: "The Ingress in the higress-conformance-infra namespace test the opa wasm plugins.",
+	Manifests:   []string{"tests/go-wasm-opa.yaml"},
+	Features:    []suite.SupportedFeature{suite.WASMGoConformanceFeature},
+	Test: func(t *testing.T, suite *suite.ConformanceTestSuite) {
+		testcases := []http.Assertion{
+			{
+				Meta: http.AssertionMeta{
+					TargetBackend:   "infra-backend-v1",
+					TargetNamespace: "higress-conformance-infra",
+				},
+				Request: http.AssertionRequest{
+					ActualRequest: http.Request{
+						Method:           "GET",
+						Host:             "foo.com",
+						Path:             "/",
+						UnfollowRedirect: true,
+					},
+				},
+				Response: http.AssertionResponse{
+					ExpectedResponse: http.Response{
+						StatusCode: stdHttp.StatusOK,
+					},
+				},
+			},
+			{
+				Meta: http.AssertionMeta{
+					TargetBackend:   "infra-backend-v1",
+					TargetNamespace: "higress-conformance-infra",
+					CompareTarget:   http.CompareTargetResponse,
+				},
+				Request: http.AssertionRequest{
+					ActualRequest: http.Request{
+						Method:           "POST",
+						Host:             "foo.com",
+						Path:             "/",
+						UnfollowRedirect: true,
+					},
+				},
+				Response: http.AssertionResponse{
+					ExpectedResponse: http.Response{
+						StatusCode: stdHttp.StatusUnauthorized,
+						Body:       []byte("opa server not allowed"),
+					},
+				},
+			},
+		}
+		t.Run("WasmPlugins opa", func(t *testing.T) {
+			for _, testcase := range testcases {
+				http.MakeRequestAndExpectEventuallyConsistentResponse(t, suite.RoundTripper, suite.TimeoutConfig, suite.GatewayAddress, testcase)
+			}
+		})
+	},
+}

test/e2e/conformance/tests/go-wasm-opa.yaml

@@ -0,0 +1,48 @@
+# 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: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+  name: wasmplugin-opa
+  namespace: higress-conformance-infra
+spec:
+  ingressClassName: higress
+  rules:
+    - host: "foo.com"
+      http:
+        paths:
+          - pathType: Prefix
+            path: "/"
+            backend:
+              service:
+                name: infra-backend-v1
+                port:
+                  number: 8080
+---
+apiVersion: extensions.higress.io/v1alpha1
+kind: WasmPlugin
+metadata:
+  name: opa
+  namespace: higress-system
+spec:
+  defaultConfig:
+    serviceSource: k8s
+    namespace: higress-conformance-app-backend
+    serviceName: opa
+    servicePort: 8181
+    policy: example1
+    timeout: 5s
+  url: file:///opt/plugins/wasm-go/extensions/opa/plugin.wasm