add functional tests for snippetsFilter

Author: salonichf5

tests/framework/ngf.go

@@ -67,6 +67,7 @@ func InstallNGF(cfg InstallationConfig, extraArgs ...string) ([]byte, error) {
 		"--namespace", cfg.Namespace,
 		"--wait",
 		"--set", "nginxGateway.productTelemetry.enable=false",
+		"--set", "nginxGateway.snippetsFilters.enable=true",
 	}
 	if cfg.ChartVersion != "" {
 		args = append(args, "--version", cfg.ChartVersion)
@@ -96,6 +97,7 @@ func UpgradeNGF(cfg InstallationConfig, extraArgs ...string) ([]byte, error) {
 		"--wait",
 		"--set", "nginxGateway.productTelemetry.enable=false",
 		"--set", "nginxGateway.config.logging.level=debug",
+		"--set", "nginxGateway.snippetsFilter.enable=true",
 	}
 	if cfg.ChartVersion != "" {
 		args = append(args, "--version", cfg.ChartVersion)

tests/suite/manifests/snippets-filter/cafe-routes.yaml

@@ -0,0 +1,24 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: coffee
+spec:
+  parentRefs:
+  - name: gateway
+    sectionName: http
+  hostnames:
+  - "cafe.example.com"
+  rules:
+  - matches:
+    - path:
+        type: PathPrefix
+        value: /coffee
+    filters:
+      - type: ExtensionRef
+        extensionRef:
+          group: gateway.nginx.org
+          kind: SnippetsFilter
+          name: all-contexts
+    backendRefs:
+    - name: coffee
+      port: 80

tests/suite/manifests/snippets-filter/cafe.yaml

@@ -0,0 +1,98 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: coffee
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: coffee
+  template:
+    metadata:
+      labels:
+        app: coffee
+    spec:
+      containers:
+      - name: coffee
+        image: nginxdemos/nginx-hello:plain-text
+        ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: coffee
+spec:
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: coffee
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tea
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tea
+  template:
+    metadata:
+      labels:
+        app: tea
+    spec:
+      containers:
+      - name: tea
+        image: nginxdemos/nginx-hello:plain-text
+        ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: tea
+spec:
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: tea
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: soda
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: soda
+  template:
+    metadata:
+      labels:
+        app: soda
+    spec:
+      containers:
+      - name: soda
+        image: nginxdemos/nginx-hello:plain-text
+        ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: soda
+spec:
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: soda

tests/suite/manifests/snippets-filter/gateway.yaml

@@ -0,0 +1,11 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  name: gateway
+spec:
+  gatewayClassName: nginx
+  listeners:
+  - name: http
+    port: 80
+    protocol: HTTP
+    hostname: "*.example.com"

tests/suite/manifests/snippets-filter/grpc-backend.yaml

@@ -0,0 +1,39 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: grpc-backend
+spec:
+  selector:
+    app: grpc-backend
+  ports:
+  - protocol: TCP
+    port: 8080
+    targetPort: 50051
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: grpc-backend
+  labels:
+    app: grpc-backend
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: grpc-backend
+  template:
+    metadata:
+      labels:
+        app: grpc-backend
+    spec:
+      containers:
+      - name: grpc-backend
+        image: ghcr.io/nginxinc/kic-test-grpc-server:0.2.2
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        resources:
+          requests:
+            cpu: 10m

tests/suite/manifests/snippets-filter/grpc-route.yaml

@@ -0,0 +1,22 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: GRPCRoute
+metadata:
+  name: grpc-route
+spec:
+  parentRefs:
+  - name: gateway
+    sectionName: http
+  rules:
+  - matches:
+    - method:
+        service: helloworld.Greeter
+        method: SayHello
+    filters:
+      - type: ExtensionRef
+        extensionRef:
+          group: gateway.nginx.org
+          kind: SnippetsFilter
+          name: grpc-all-contexts
+    backendRefs:
+    - name: grpc-backend
+      port: 8080

tests/suite/manifests/snippets-filter/invalid-context-sf.yaml

@@ -0,0 +1,37 @@
+apiVersion: gateway.nginx.org/v1alpha1
+kind: SnippetsFilter
+metadata:
+  name: invalid-context
+spec:
+  snippets:
+    - context: http
+      value: aio on;
+    - context: http.server
+      value: wrker_priority 0;  # wrong context for the directive, should be main.
+    - context: http.server.location
+      value: keepalive_time 10s;
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: soda
+spec:
+  parentRefs:
+  - name: gateway
+    sectionName: http
+  hostnames:
+  - "cafe.example.com"
+  rules:
+  - matches:
+    - path:
+        type: Exact
+        value: /soda
+    filters:
+      - type: ExtensionRef
+        extensionRef:
+          group: gateway.nginx.org
+          kind: SnippetsFilter
+          name: invalid-context
+    backendRefs:
+    - name: soda
+      port: 80

tests/suite/manifests/snippets-filter/invalid-duplicate-sf.yaml

@@ -0,0 +1,39 @@
+apiVersion: gateway.nginx.org/v1alpha1
+kind: SnippetsFilter
+metadata:
+  name: duplicate-directive
+spec:
+  snippets:
+    - context: main
+      value: worker_processes auto;  # already present in the configuration
+    - context: http
+      value: aio on;
+    - context: http.server
+      value: auth_delay 10s;
+    - context: http.server.location
+      value: keepalive_time 10s;
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: tea
+spec:
+  parentRefs:
+  - name: gateway
+    sectionName: http
+  hostnames:
+  - "cafe.example.com"
+  rules:
+  - matches:
+    - path:
+        type: Exact
+        value: /tea
+    filters:
+      - type: ExtensionRef
+        extensionRef:
+          group: gateway.nginx.org
+          kind: SnippetsFilter
+          name: duplicate-directive
+    backendRefs:
+    - name: tea
+      port: 80

tests/suite/manifests/snippets-filter/valid-sf.yaml

@@ -0,0 +1,29 @@
+apiVersion: gateway.nginx.org/v1alpha1
+kind: SnippetsFilter
+metadata:
+  name: all-contexts
+spec:
+  snippets:
+    - context: main
+      value: worker_priority 0;
+    - context: http
+      value: aio on;
+    - context: http.server
+      value: auth_delay 10s;
+    - context: http.server.location
+      value: keepalive_time 10s;
+---
+apiVersion: gateway.nginx.org/v1alpha1
+kind: SnippetsFilter
+metadata:
+  name: grpc-all-contexts
+spec:
+  snippets:
+    - context: main
+      value: worker_shutdown_timeout 120s;
+    - context: http
+      value: types_hash_bucket_size 64;
+    - context: http.server
+      value: 	server_tokens on;
+    - context: http.server.location
+      value: 	tcp_nodelay on;