[exporter/awss3] Add compression option (27872)

[pepperkick]

Description:
Add compression option to compress files using compress/gzip library before uploading to S3.

Link to tracking Issue:
Fixes #27872

Testing:

Sent n number of traces through the S3 exporter using k6 to compare sizes. Used Minio as the S3 backend.

Marshaler	Compression	k6 Requests	k6 Data Sent	S3 Objects	S3 Total Size
otlp_json	No	101	118 KB	101	36 KB
otlp_proto	No	101	118 KB	101	11 KB
otlp_json	Yes	101	118 KB	101	21 KB
otlp_proto	Yes	101	118 KB	101	9.9 KB

Additionally, new unit test to check file name.

Documentation:

• Updated README.md file

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: pepperkick / name: PepperKick (5c2517a, b359613, 5ca3d56, e2ab29f, 7506b9d)

[atoulme]

Please take a look at the failing build.

Do you expect the only compression will be .gz only? Could we have multiple types of compression?

[pepperkick]

Please take a look at the failing build.

=== Failed
make[2]: *** [../../Makefile.Common:131: test-with-cover] Error 3
=== FAIL: . TestComponentLifecycle/metrics-shutdown (0.00s)
    generated_component_test.go:50: 
        	Error Trace:	/home/runner/work/opentelemetry-collector-contrib/opentelemetry-collector-contrib/receiver/opencensusreceiver/generated_component_test.go:50
        	Error:      	Received unexpected error:
make[1]: *** [Makefile:165: receiver/opencensusreceiver] Error 2
make: *** [Makefile:117: gotest-with-cover] Error 2
        	            	failed to bind to address "0.0.0.0:55678": listen tcp 0.0.0.0:55678: bind: address already in use
        	Test:       	TestComponentLifecycle/metrics-shutdown

=== FAIL: . TestComponentLifecycle/traces-shutdown (0.00s)

=== FAIL: . TestComponentLifecycle (0.00s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x129e5fc]

Seems like there is some port conflict for opencensusreceiver in CI. Not sure but maybe parallel builds?

Do you expect the only compression will be .gz only? Could we have multiple types of compression?

Good question, the issue only mentioned gzip and it is most used. Only other I can think of is zip compression via archive/zip library.
I can make the compression enum type similar to the marshaler field so new options can be added in future. My concern in this case would be appending the file extension for various types.

[atoulme]

sorry for the leading question, I meant we can use the configcompression.Type type: https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/configcompression/compressiontype.go

I will look at the build and file an issue.

[pepperkick]

sorry for the leading question, I meant we can use the configcompression.Type type: https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/configcompression/compressiontype.go

Updated code to reuse the configcompression.Type. Was not aware of this!

I will look at the build and file an issue.

Thanks! 😄