高级路由

route_config:
  virtual_hosts:
  - name: example_vhost
    domains: ["*"]
    routes:
    - match:
        prefix: "/api/v2"
      route:
        cluster: api_v2
        priority: HIGH
    - match:
        prefix: "/api"
      route:
        cluster: api_v1
        priority: DEFAULT

route_config:
  virtual_hosts:
  - name: example_vhost
    domains: ["*"]
    virtual_clusters:
    - name: "api_stats"
      pattern: "^/api/.*$"
      method: GET
    - name: "user_stats"
      pattern: "^/users/\\d+$"
      method: POST
    routes:
    - match:
        prefix: "/api"
      route:
        cluster: api_service

routes:
- match:
    prefix: "/api"
    headers:
    - name: "x-version"
      string_match:
        exact: "v2"
    - name: "x-client"
      string_match:
        prefix: "mobile"
    query_parameters:
    - name: "debug"
      string_match:
        exact: "true"
  route:
    cluster: api_v2_debug

routes:
- match:
    safe_regex:
      google_re2: {}
      regex: "^/users/(\\d+)/profile$"
  route:
    cluster: user_profile_service
    regex_rewrite:
      pattern:
        google_re2: {}
        regex: "^/users/(\\d+)/profile$"
      substitution: "/profile/\\1"

routes:
- match:
    prefix: "/api/v1"
  route:
    cluster: api_service
    prefix_rewrite: "/api"
    host_rewrite_literal: "api.example.com"

routes:
- match:
    safe_regex:
      google_regex: {}
      regex: "^/service/([^/]+)/(.*)$"
  route:
    cluster: dynamic_service
    regex_rewrite:
      pattern:
        google_regex: {}
        regex: "^/service/([^/]+)/(.*)$"
      substitution: "/\\2"

routes:
- match:
    prefix: "/api"
  route:
    cluster: api_service
    metadata:
      filter_metadata:
        envoy.filters.http.ratelimit:
          rate_limit_key: "api"
        envoy.filters.http.cors:
          allow_origin: "*"

virtual_hosts:
- name: example_vhost
  domains: ["*"]
  metadata:
    filter_metadata:
      envoy.filters.http.ratelimit:
        rate_limit_key: "vhost"
  routes:
  - match:
      prefix: "/"
    route:
      cluster: default_service

routes:
- match:
    prefix: "/api"
  route:
    cluster: api_service
    stat_name: "api_requests"

virtual_clusters:
- name: "api_stats"
  pattern: "^/api/.*$"
  method: GET
  stat_name: "api_get_requests"

routes:
- match:
    prefix: "/slow-api"
  route:
    cluster: slow_service
    timeout: 30s
    retry_policy:
      retry_on: "5xx,connect-failure"
      num_retries: 3
      per_try_timeout: 10s

virtual_hosts:
- name: example_vhost
  domains: ["*"]
  routes:
  - match:
      prefix: "/"
    route:
      cluster: default_service
  timeout: 15s
  retry_policy:
    retry_on: "5xx"
    num_retries: 2

route_config:
  name: cached_route
  virtual_hosts:
  - name: example_vhost
    domains: ["*"]
    routes:
    - match:
        prefix: "/cache"
      route:
        cluster: cache_service
        request_mirror_policies:
        - cluster: cache_warmup
          runtime_fraction:
            default_value:
              numerator: 10
              denominator: HUNDRED