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path: root/etc/envoy/envoy.yml
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admin:
  address:
    socket_address:
      address: 0.0.0.0
      port_value: 9901
static_resources:
  clusters:
    - name: sparkle
      connect_timeout: 0.25s
      type: STRICT_DNS
      lb_policy: ROUND_ROBIN
      load_assignment:
        cluster_name: sparkle
        endpoints:
          - lb_endpoints:
              - endpoint:
                  address:
                    socket_address:
                      address: localhost
                      port_value: 8080
    - name: oidc
      connect_timeout: 5s
      type: LOGICAL_DNS
      lb_policy: ROUND_ROBIN
      load_assignment:
        cluster_name: oidc
        endpoints:
          - lb_endpoints:
              - endpoint:
                  address:
                    socket_address:
                      address: example.com
                      port_value: 443
                  hostname: example.com
      transport_socket:
        name: envoy.transport_sockets.tls
        typed_config:
          "@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext
          sni: example.com
  listeners:
    - name: listener_0
      address:
        socket_address:
          protocol: TCP
          address: 0.0.0.0
          port_value: 10000
      filter_chains:
        - filters:
            - name: envoy.filters.network.http_connection_manager
              typed_config:
                "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
                access_log:
                  - name: envoy.access_loggers.stdout
                    typed_config:
                      "@type": type.googleapis.com/envoy.extensions.access_loggers.stream.v3.StdoutAccessLog
                      log_format:
                        json_format:
                          timestamp: "%START_TIME%"
                          client_ip: "%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT%"
                          authority: "%REQ(:AUTHORITY)%"
                          protocol: "%PROTOCOL%"
                          method: "%REQ(:METHOD)%"
                          path: "%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%"
                          request_id: "%REQ(X-REQUEST-ID)%"
                          response_code: "%RESPONSE_CODE%"
                          bytes_received: "%BYTES_RECEIVED%"
                          bytes_sent: "%BYTES_SENT%"
                          duration: "%DURATION%"
                          forwarded_for: "%REQ(X-FORWARDED-FOR)%"
                          user_agent: "%REQ(USER-AGENT)%"
                codec_type: AUTO
                http_filters:
                  - name: envoy.filters.http.oauth2
                    typed_config:
                      "@type": type.googleapis.com/envoy.extensions.filters.http.oauth2.v3.OAuth2
                      config:
                        auth_scopes:
                          - email
                          - openid
                          - profile
                        auth_type: BASIC_AUTH
                        authorization_endpoint: "https://example.com/oauth/authorize"
                        credentials:
                          client_id: "OAUTH_CLIENT_ID"
                          cookie_names:
                            bearer_token: bearer_token
                            oauth_hmac: oauth_hmac
                            oauth_expires: oauth_expires
                            id_token: id_token
                            refresh_token: refresh_token
                            oauth_nonce: oauth_nonce
                            # code_verifier: code_verifier
                          token_secret:
                            name: client_secret
                          hmac_secret:
                            name: hmac_secret
                        forward_bearer_token: true
                        pass_through_matcher:
                          - name: ":path"
                            safe_regex_match:
                              regex: .*\\.(css|js|png|html|ico)$
                          - name: ":path"
                            string_match:
                              exact: "/health"
                          - name: ":path"
                            string_match:
                              exact: "/"
                          - name: ":path"
                            string_match:
                              exact: "/sparkles"
                          - name: ":path"
                            string_match:
                              exact: "/sparkles/restore"
                          - name: ":path"
                            string_match:
                              exact: "/dashboard/nav"
                        redirect_path_matcher:
                          path:
                            exact: /callback
                        redirect_uri: "%REQ(x-forwarded-proto)%://%REQ(:authority)%/callback"
                        signout_path:
                          path:
                            exact: /signout
                        token_endpoint:
                          cluster: oidc
                          uri: "https://example.com/oauth/token"
                          timeout: 5s
                        use_refresh_token: true
                  - name: envoy.filters.http.router
                    typed_config:
                      "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
                      upstream_log:
                        - name: envoy.access_loggers.stdout
                          typed_config:
                            "@type": type.googleapis.com/envoy.extensions.access_loggers.stream.v3.StdoutAccessLog
                            log_format:
                              json_format:
                                timestamp: "%START_TIME%"
                                client_ip: "%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT%"
                                authority: "%REQ(:AUTHORITY)%"
                                protocol: "%PROTOCOL%"
                                method: "%REQ(:METHOD)%"
                                path: "%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%"
                                request_id: "%REQ(X-REQUEST-ID)%"
                                response_code: "%RESPONSE_CODE%"
                                bytes_received: "%BYTES_RECEIVED%"
                                bytes_sent: "%BYTES_SENT%"
                                duration: "%DURATION%"
                                forwarded_for: "%REQ(X-FORWARDED-FOR)%"
                                user_agent: "%REQ(USER-AGENT)%"
                      suppress_envoy_headers: true
                route_config:
                  virtual_hosts:
                    - name: local
                      domains: ["*"]
                      routes:
                        - match:
                            prefix: "/"
                          route:
                            cluster: sparkle
                            timeout: 5s
                      retry_policy:
                        retry_on: "5xx"
                        num_retries: 3
                stat_prefix: ingress_http
  secrets:
    - name: client_secret
      generic_secret:
        secret:
          environment_variable: OAUTH_CLIENT_SECRET
    - name: hmac_secret
      generic_secret:
        secret:
          environment_variable: HMAC_SESSION_SECRET