GCP 存储桶和 GKE 之间的负载平衡

Question

我有一个带有“Gateway”和“Httproute”资源的 GKE 集群，如下所示。

kind: Gateway
apiVersion: gateway.networking.k8s.io/v1beta1
metadata:
  namespace: development
  name: dev-example-gateway
spec:
  gatewayClassName: gke-l7-global-external-managed
  listeners:
  - name: http
    protocol: HTTP
    port: 80

kind: HTTPRoute
apiVersion: gateway.networking.k8s.io/v1beta1
metadata:
  name: store
  namespace: development
spec:
  parentRefs:
  - kind: Gateway
    name: dev-example-gateway
  hostnames:
  - "gateway.example.com"
  rules:
  - backendRefs:
    - name: example-frontend-svc
      port: 3000
  - matches:
      - path:
          type: PathPrefix
          value: /api
    filters:
      - type: URLRewrite
        urlRewrite:
          hostname: gateway.example.com
          path:
            type: ReplacePrefixMatch
            replacePrefixMatch: /
    backendRefs:
      - name: example-backend-svc
        port: 2828

我还有一个 GCP 存储桶，我想将流量传递到其中。我已经为名为“example-bucket”的后端创建了存储桶。将下面的代码添加到 httproute 资源`

  - matches:
      - path:
          type: PathPrefix
          value: /_next/static/
    filters:
      - type: URLRewrite
        urlRewrite:
          hostname: gateway.example.com
          path:
            type: ReplacePrefixMatch
            replacePrefixMatch: /static/
    backendRefs:
      - name: projects/example/global/backendBuckets/example-bucket
        port: 80

但它为此添加了另一个后端，而不是存储桶，一些自动生成的后端称为“gkegw1-bxdu-development-gw-serve404-80-s8c5ntyjhig9”。我使用的LB类型支持后端桶。

尝试过这个httproute配置。

kind: HTTPRoute
apiVersion: gateway.networking.k8s.io/v1beta1
metadata:
  name: store
  namespace: development
spec:
  parentRefs:
  - kind: Gateway
    name: dev-example-gateway
  hostnames:
  - "gateway.example.com"
  rules:
  - backendRefs:
    - name: example-frontend-svc
      port: 3000
  - matches:
      - path:
          type: PathPrefix
          value: /api
    filters:
      - type: URLRewrite
        urlRewrite:
          hostname: gateway.example.com
          path:
            type: ReplacePrefixMatch
            replacePrefixMatch: /
    backendRefs:
      - name: example-backend-svc
        port: 2828
  - matches:
      - path:
          type: PathPrefix
          value: /_next/static/
    filters:
      - type: URLRewrite
        urlRewrite:
          hostname: gateway.example.com
          path:
            type: ReplacePrefixMatch
            replacePrefixMatch: /static/
    backendRefs:
      - name: projects/example/global/backendBuckets/example-bucket
        port: 80

其他后端按预期工作。

Answer 1

不幸的是，GKE Ingress 或 Gateway 都不支持使用 GCS 作为后端。您必须手动配置负载均衡器，然后使用添加 GKE 独立 NEG 作为后端以及 GCS 后端。