add golang application log support

[chwjbn]

support for application log send to aop

[wu-sheng]

Why do we send agent log to backend? How should we separate them from original logs?

[chwjbn]

Why do we send agent log to backend? How should we separate them from original logs?

sorry,we can use grpc reporter to send golang application log from agent to backend,it's realized in java application

[wu-sheng]

Why do we send agent log to backend? How should we separate them from original logs?

sorry,we can use grpc reporter to send golang application log from agent to backend,it's realized in java application

Please update docs to show how to do this.

[wu-sheng]

Sending agent log is different from sending application logs. Please be clear about this PR purpose.

[wu-sheng]

The doc seems not updated yet.

[chwjbn]

The doc seems not updated yet.

The doc has updated now

[wu-sheng]

CI fails, please fix them.

[wu-sheng]

Also, you should add a new plugin test. Take this trace plugin as an example, https://github.com/SkyAPM/go2sky/tree/master/plugins/http

You could verify logs this way, https://skywalking.apache.org/docs/skywalking-java/next/en/setup/service-agent/java-agent/plugin-test/#expecteddatayaml (Expected Data Format Of The Log Items)

[wu-sheng]

Also, you should add a new plugin test. Take this trace plugin as an example, https://github.com/SkyAPM/go2sky/tree/master/plugins/http

You could verify logs this way, https://skywalking.apache.org/docs/skywalking-java/next/en/setup/service-agent/java-agent/plugin-test/#expecteddatayaml (Expected Data Format Of The Log Items)

Please prepare this as well. We need to verify features through e2e.

[wu-sheng]

The build seems failed, please fix the CI.

[wu-sheng]

I updated the docs for you. The previous format and naming are still little strange.

[wu-sheng]

You may need to fix CI.

[wu-sheng]

Still need some fixes of e2e.

[codecov-commenter]

Codecov Report

Merging #173 (b5d22d7) into master (50a1482) will decrease coverage by 4.07%. The diff coverage is 4.30%.

@@            Coverage Diff             @@
##           master     #173      +/-   ##
==========================================
- Coverage   61.85%   57.77%   -4.08%     
==========================================
  Files          23       24       +1     
  Lines        1219     1312      +93     
==========================================
+ Hits          754      758       +4     
- Misses        405      493      +88     
- Partials       60       61       +1     

Impacted Files	Coverage Δ
log.go	0.00% <0.00%> (ø)
reporter/log.go	0.00% <0.00%> (ø)
trace.go	81.37% <ø> (ø)
reporter/grpc.go	43.34% <6.45%> (-7.86%)	:arrow_down:

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[wu-sheng]

Tests are still failing.

[wu-sheng]

It is better you verified e2e locally first.

[chwjbn]

yes,this is my first pr for the project,I studied the full e2e doc and project