[FEATURE] Make logs (printed from spdlog) sended to trace_pipe on agent

[Officeyutong]

We should support that make logs printed from spdlog being sended to trace_pipt, not directly printed from the process injected by agent

[NobinPegasus]

@Officeyutong I would like to work on this

[NobinPegasus]

@Officeyutong
Can you provide some guidelines? Which files should I make the changes to? SPDLOG_* are used in far too many places.

[Officeyutong]

@Officeyutong Can you provide some guidelines? Which files should I make the changes to? SPDLOG_* are used in far too many places.

Create a new logger, set it to default, and use a customized sink so it could send logs to tracepipe

https://github.com/gabime/spdlog/wiki/2.-Creating-loggers

[yunwei37]

@NobinPegasus Any progress?

[Kailian-Jacy]

Hi, I've made a draft pr to this issue with basic logging redirection feature finished:

#301

There are still some questions too be solved before further works and merging. Please kindly provide suggestions if possible.

I may add these feature in this PR, hoping suggestions or confirmation from you:

• Provide a subcommand similar to trace to output logs we want.
• Logs be optionally reserved under /var/log/ or syslog under linux. Log rotation are management automatically.
• Merge logs from different processes as one. Add tags of source (which injected process causing) to the log.
• Add documentations about logging.

[Officeyutong]

Hi, I've made a draft pr to this issue with basic logging redirection feature finished:

#301

There are still some questions too be solved before further works and merging. Please kindly provide suggestions if possible.

I may add these feature in this PR, hoping suggestions or confirmation from you:

• Provide a subcommand similar to trace to output logs we want.
• Logs be optionally reserved under /var/log/ or syslog under linux. Log rotation are management automatically.
• Merge logs from different processes as one. Add tags of source (which injected process causing) to the log.
• Add documentations about logging.

These features are ok. Thank you!