使用json输出修改Istio访问日志格式

Question

如何修改istio meshconfig访问日志格式，当输出accessLogEncoding设置为JSON时，更改文档中描述的格式无效

spec:
meshConfig:
accessLogFile: /dev/stdout
accessLogEncoding: JSON
accessLogFormat: '[%START_TIME%] "%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%" %RESPONSE_CODE% %RESPONSE_FLAGS% %RESPONSE_CODE_DETAILS% %CONNECTION_TERMINATION_DETAILS%"%UPSTREAM_TRANSPORT_FAILURE_REASON%" %BYTES_RECEIVED% %BYTES_SENT% %DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% "%REQ(X-FORWARDED-FOR)%" "%REQ(USER-AGENT)%" "%REQ(X-REQUEST-ID)%" "%REQ(:AUTHORITY)%" "%UPSTREAM_HOST%" %UPSTREAM_CLUSTER% %UPSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_REMOTE_ADDRESS% %REQUESTED_SER'

Answer 1

成功了!，这就是我需要的:

spec:
meshConfig:
accessLogFile: /dev/stdout
accessLogEncoding: JSON
accessLogFormat: |
{
"protocol": "%PROTOCOL%",
"upstream_service_time": "%REQ(x-envoy-upstream-service-time)%",
"upstream_local_address": "%UPSTREAM_LOCAL_ADDRESS%",
"duration": "%DURATION%",
"upstream_transport_failure_reason": "%UPSTREAM_TRANSPORT_FAILURE_REASON%",
"route_name": "%ROUTE_NAME%",
"downstream_local_address": "%DOWNSTREAM_LOCAL_ADDRESS%",
"user_agent": "%REQ(USER-AGENT)%",
"response_code": "%RESPONSE_CODE%",
"response_flags": "%RESPONSE_FLAGS%",
"start_time": "%START_TIME%",
"method": "%REQ(:METHOD)%",
"request_id": "%REQ(X-REQUEST-ID)%",
"upstream_host": "%UPSTREAM_HOST%",
"x_forwarded_for": "%REQ(X-FORWARDED-FOR)%",
"client_ip": "%REQ(True-Client-Ip)%",
"requested_server_name": "%REQUESTED_SERVER_NAME%",
"bytes_received": "%BYTES_RECEIVED%",
"bytes_sent": "%BYTES_SENT%",
"upstream_cluster": "%UPSTREAM_CLUSTER%",
"downstream_remote_address": "%DOWNSTREAM_REMOTE_ADDRESS%",
"authority": "%REQ(:AUTHORITY)%",
"path": "%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%",
"response_code_details": "%RESPONSE_CODE_DETAILS%"
}