Add more example configurations to seed corpus

Signed-off-by: sudipto baral <[email protected]>

Author: sudiptob2

test/fuzz/testdata/FuzzGatewayAPIToXDS/envoy_patch_policy

@@ -0,0 +1,31 @@
+---
+apiVersion: gateway.envoyproxy.io/v1alpha1
+kind: EnvoyPatchPolicy
+metadata:
+  name: custom-response-patch-policy
+  namespace: default
+spec:
+  targetRef:
+    group: gateway.networking.k8s.io
+    kind: Gateway
+    name: eg
+  type: JSONPatch
+  jsonPatches:
+    - type: "type.googleapis.com/envoy.config.listener.v3.Listener"
+      # The listener name is of the form <GatewayNamespace>/<GatewayName>/<GatewayListenerName>
+      name: default/eg/http
+      operation:
+        op: add
+        path: "/default_filter_chain/filters/0/typed_config/local_reply_config"
+        value:
+          mappers:
+          - filter:
+              status_code_filter:
+                comparison:
+                  op: EQ
+                  value:
+                    default_value: 404
+                    runtime_key: key_b
+            status_code: 406
+            body:
+              inline_string: "could not find what you are looking for"

test/fuzz/testdata/FuzzGatewayAPIToXDS/extension_server

@@ -0,0 +1,54 @@
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: myapp
+spec:
+  parentRefs:
+  - name: eg
+  hostnames:
+  - "www.example.com"
+  rules:
+  - matches:
+    - path:
+        type: PathPrefix
+        value: /myapp
+    backendRefs:
+    - name: backend
+      port: 3000
+
+---
+apiVersion: gateway.envoyproxy.io/v1alpha1
+kind: EnvoyExtensionPolicy
+metadata:
+  name: ext-proc-example
+spec:
+  targetRefs:
+    - group: gateway.networking.k8s.io
+      kind: HTTPRoute
+      name: myapp
+  extProc:
+    - backendRefs:
+        - name: grpc-ext-proc
+          port: 9002
+      processingMode:
+        request: {}
+        response:
+          body: Streamed
+
+---
+apiVersion: gateway.networking.k8s.io/v1alpha3
+kind: BackendTLSPolicy
+metadata:
+  name: grpc-ext-proc-btls
+spec:
+  targetRefs:
+    - group: ''
+      kind: Service
+      name: grpc-ext-proc
+  validation:
+    caCertificateRefs:
+      - name: grpc-ext-proc-ca
+        group: ''
+        kind: ConfigMap
+    hostname: grpc-ext-proc.envoygateway

test/fuzz/testdata/FuzzGatewayAPIToXDS/multi_tenancy

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+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: GatewayClass
+metadata:
+  name: eg-marketing
+spec:
+  controllerName: gateway.envoyproxy.io/marketing-gatewayclass-controller
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  name: eg
+  namespace: marketing
+spec:
+  gatewayClassName: eg-marketing
+  listeners:
+    - name: http
+      protocol: HTTP
+      port: 8080
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: backend
+  namespace: marketing
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+  namespace: marketing
+  labels:
+    app: backend
+    service: backend
+spec:
+  ports:
+    - name: http
+      port: 3000
+      targetPort: 3000
+  selector:
+    app: backend
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+  namespace: marketing
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: backend
+      version: v1
+  template:
+    metadata:
+      labels:
+        app: backend
+        version: v1
+    spec:
+      serviceAccountName: backend
+      containers:
+        - image: gcr.io/k8s-staging-gateway-api/echo-basic:v20231214-v1.0.0-140-gf544a46e
+          imagePullPolicy: IfNotPresent
+          name: backend
+          ports:
+            - containerPort: 3000
+          env:
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: backend
+  namespace: marketing
+spec:
+  parentRefs:
+    - name: eg
+  hostnames:
+    - "www.marketing.example.com"
+  rules:
+    - backendRefs:
+        - group: ""
+          kind: Service
+          name: backend
+          port: 3000
+          weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /

test/fuzz/testdata/FuzzGatewayAPIToXDS/proxy_metrics

@@ -0,0 +1,27 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  name: eg
+  namespace: envoy-gateway-system
+spec:
+  gatewayClassName: eg
+  infrastructure:
+    parametersRef:
+      group: gateway.envoyproxy.io
+      kind: EnvoyProxy
+      name: prometheus
+  listeners:
+    - name: http
+      protocol: HTTP
+      port: 80
+---
+apiVersion: gateway.envoyproxy.io/v1alpha1
+kind: EnvoyProxy
+metadata:
+  name: prometheus
+  namespace: envoy-gateway-system
+spec:
+  telemetry:
+    metrics:
+      prometheus:
+        disable: true

test/fuzz/testdata/FuzzGatewayAPIToXDS/proxy_tracing

@@ -0,0 +1,50 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: GatewayClass
+metadata:
+  name: eg
+spec:
+  controllerName: gateway.envoyproxy.io/gatewayclass-controller
+  parametersRef:
+    group: gateway.envoyproxy.io
+    kind: EnvoyProxy
+    name: otel
+    namespace: envoy-gateway-system
+---
+apiVersion: gateway.envoyproxy.io/v1alpha1
+kind: EnvoyProxy
+metadata:
+  name: otel
+  namespace: envoy-gateway-system
+spec:
+  telemetry:
+    tracing:
+      # sample 1% of requests
+      samplingRate: 1
+      provider:
+        backendRefs:
+        - name: otel-collector
+          namespace: monitoring
+          port: 4317
+        type: OpenTelemetry
+      customTags:
+        # This is an example of using a literal as a tag value
+        provider:
+          type: Literal
+          literal:
+            value: "otel"
+        "k8s.pod.name":
+          type: Environment
+          environment:
+            name: ENVOY_POD_NAME
+            defaultValue: "-"
+        "k8s.namespace.name":
+          type: Environment
+          environment:
+            name: ENVOY_GATEWAY_NAMESPACE
+            defaultValue: "envoy-gateway-system"
+        # This is an example of using a header value as a tag value
+        header1:
+          type: RequestHeader
+          requestHeader:
+            name: X-Header-1
+            defaultValue: "-"

test/fuzz/testdata/FuzzGatewayAPIToXDS/wasm_extension

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+---
+apiVersion: gateway.envoyproxy.io/v1alpha1
+kind: EnvoyExtensionPolicy
+metadata:
+  name: wasm-test
+spec:
+  targetRefs:
+  - group: gateway.networking.k8s.io
+    kind: HTTPRoute
+    name: backend
+  wasm:
+  - name: wasm-filter
+    rootID: my_root_id
+    code:
+      type: HTTP
+      http:
+        url: https://raw.githubusercontent.com/envoyproxy/examples/main/wasm-cc/lib/envoy_filter_http_wasm_example.wasm
+        sha256: 79c9f85128bb0177b6511afa85d587224efded376ac0ef76df56595f1e6315c0