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我正在尝试使用通过app-identity-and-access-adapter控制的身份验证来部署Grafana。问题是适配器在成功验证时添加了 HTTP 授权标头,但 Grafana 也在寻找相同的标头,因此将请求作为失败的 HTTP API 请求拒绝。{"message":"Invalid API key"}

我尝试使用 EnvoyFilter 来剥离 Authorization 标头,如下所示:

apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: grafana
  namespace: monitoring
spec:
  workloadSelector:
    labels:
      app: grafana
  configPatches:
    # The first patch adds the lua filter to the listener/http connection manager
  - applyTo: HTTP_FILTER
    match:
      context: SIDECAR_INBOUND
      listener:
        portNumber: 3000
        filterChain:
          filter:
            name: "envoy.http_connection_manager"
            subFilter:
              name: "envoy.router"
    patch:
      operation: INSERT_BEFORE
      value: # lua filter specification
        name: envoy.lua
        config:
          inlineCode: |
            function envoy_on_request(request_handle)
                local originalHeader = request_handle:headers():get("Authorization")
                if originalHeader then
                  request_handle:headers():remove("Authorization")
                end
            end

但它似乎不起作用。使用以下命令打印所有可用的标题:

for key, value in pairs(request_handle:headers()) do
  request_handle:logWarn("key:" .. key .. " <--> value:" .. value)
end 

显示标题不存在,但 Grafana 显然正在接收它。

我可能做错了什么?

Istio 版本:1.4.5

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