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Parse external request id from request headers, and print it in access log (#22906)

Close: #22890.

---
### Configure in .ini file:
```ini
[log]
REQUEST_ID_HEADERS = X-Request-ID, X-Trace-Id
```

### Params in Request Header
```
X-Trace-ID: trace-id-1q2w3e4r
```

![image](https://user-images.githubusercontent.com/33891828/218665296-8fd19a0f-ada6-4236-8bdb-f99201c703e8.png)



### Log output:

![image](https://user-images.githubusercontent.com/33891828/218665225-cc242a57-4ffc-449a-a1f6-f45ded0ead60.png)
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sillyguodong 2023-03-10 23:54:32 +08:00 committed by GitHub
parent cf29ee6dd2
commit 5155ec35c5
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5 changed files with 74 additions and 1 deletions

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@ -576,6 +576,22 @@ ROUTER = console
;; The routing level will default to that of the system but individual router level can be set in
;; [log.<mode>.router] LEVEL
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Print request id which parsed from request headers in access log, when access log is enabled.
;; * E.g:
;; * In request Header: X-Request-ID: test-id-123
;; * Configuration in app.ini: REQUEST_ID_HEADERS = X-Request-ID
;; * Print in log: 127.0.0.1:58384 - - [14/Feb/2023:16:33:51 +0800] "test-id-123"
;;
;; If you configure more than one in the .ini file, it will match in the order of configuration,
;; and the first match will be finally printed in the log.
;; * E.g:
;; * In reuqest Header: X-Trace-ID: trace-id-1q2w3e4r
;; * Configuration in app.ini: REQUEST_ID_HEADERS = X-Request-ID, X-Trace-ID, X-Req-ID
;; * Print in log: 127.0.0.1:58384 - - [14/Feb/2023:16:33:51 +0800] "trace-id-1q2w3e4r"
;;
;; REQUEST_ID_HEADERS =
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;