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2个规则的envoy配置

2020年06月22日 1029点热度 1人点赞 0条评论

配置以下VirtualService资源定义。如果http header里包含end-user且其值为jason则路由到v2版本reviews,否则访问v1版本reviews

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apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: reviews
  namespace: istio-bookinfo
spec:
  hosts:
    - reviews
  http:
  - match:
    - headers:
        end-user:
          exact: jason
    route:
    - destination:
        host: reviews
        subset: v2
  - route:
    - destination:
        host: reviews
        subset: v1

施加virtualservice定义之后的envoy route配置

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                "routes": [
                    {
                        "match": {
                            "prefix": "/",
                            "caseSensitive": true,
                            "headers": [
                                {
                                    "name": "end-user",
                                    "exactMatch": "jason"
                                }
                            ]
                        },
                        "route": {
                            "cluster": "outbound|9080|v2|reviews.istio-bookinfo.svc.cluster.local",
                            "timeout": "0s",
                            "retryPolicy": {
                                "retryOn": "connect-failure,refused-stream,unavailable,cancelled,retriable-status-codes",
                                "numRetries": 2,
                                "retryHostPredicate": [
                                    {
                                        "name": "envoy.retry_host_predicates.previous_hosts"
                                    }
                                ],
                                "hostSelectionRetryMaxAttempts": "5",
                                "retriableStatusCodes": [
                                    503
                                ]
                            },
                            "maxGrpcTimeout": "0s"
                        },
                        "metadata": {
                            "filterMetadata": {
                                "istio": {
                                    "config": "/apis/networking.istio.io/v1alpha3/namespaces/istio-bookinfo/virtual-service/reviews"
                                }
                            }
                        },
                        "decorator": {
                            "operation": "reviews.istio-bookinfo.svc.cluster.local:9080/*"
                        }
                    },
                    {
                        "match": {
                            "prefix": "/"
                        },
                        "route": {
                            "cluster": "outbound|9080|v1|reviews.istio-bookinfo.svc.cluster.local",
                            "timeout": "0s",
                            "retryPolicy": {
                                "retryOn": "connect-failure,refused-stream,unavailable,cancelled,retriable-status-codes",
                                "numRetries": 2,
                                "retryHostPredicate": [
                                    {
                                        "name": "envoy.retry_host_predicates.previous_hosts"
                                    }
                                ],
                                "hostSelectionRetryMaxAttempts": "5",
                                "retriableStatusCodes": [
                                    503
                                ]
                            },
                            "maxGrpcTimeout": "0s"
                        },
                        "metadata": {
                            "filterMetadata": {
                                "istio": {
                                    "config": "/apis/networking.istio.io/v1alpha3/namespaces/istio-bookinfo/virtual-service/reviews"
                                }
                            }
                        },
                        "decorator": {
                            "operation": "reviews.istio-bookinfo.svc.cluster.local:9080/*"
                        }
                    }
                ],
本作品采用 知识共享署名 4.0 国际许可协议 进行许可
标签: canary release envoy istio traffic route
最后更新:2020年06月22日

纳米

http://linjing.io

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