[sr-dev] [kamailio/kamailio] JSON CEE structured logging (#2797)

Daniel Pocock notifications at github.com
Sat Jul 10 17:13:44 CEST 2021

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### Description

Kamailio recently added JSON logging support, described on these two pages:

Structured logging is particularly useful when:

1. there are multiple applications involved in a call (e.g. Kamailio, Kurento, coTurn, Apache)
2. all the applications create JSON logs using identical field names

I recently made contributions to reSIProcate, GStreamer and Kurento to support the JSON CEE field names.  It would be very easy to replicate in Kamailio.

Notice that ```rsyslog``` can receive legacy Syslog events from VoIP hardware, Cisco and Polycom phones and it can convert them to JSON CEE and push them into the document store where they will meet the records from Kamailio.  This is another case where it is really useful if all the JSON from different applications is using CEE.

Here are the JSON CEE field names:


### Expected behavior

Extend the config setting so that people can request CEE on the command line.

#### Actual observed behavior

#### Debugging Data

(paste your debugging data here)

#### Log Messages

Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).

(paste your log messages here)

#### SIP Traffic

If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).

(paste your sip traffic here)

### Possible Solutions

If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a improvement.

### Additional Information

  * **Kamailio Version** - output of `kamailio -v`

(paste your output here)

* **Operating System**:

Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `uname -a`)

(paste your output here)

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