pass X-Request-ID from upstream

[liubin]

This will get X-Request-ID from the caller and write to http.request.id filed in the log for distributed debugging purpose.

Related #1607 #1479, these two issues are serval years ago, I'm not sure this PR can fix these or give some hint to them.

[codecov-commenter]

Codecov Report

Patch coverage: 57.14% and project coverage change: +0.34% 🎉

Comparison is base (1284c48) 57.70% compared to head (4609bb0) 58.04%.
Report is 164 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4026      +/-   ##
==========================================
+ Coverage   57.70%   58.04%   +0.34%     
==========================================
  Files         108      106       -2     
  Lines       10532    10360     -172     
==========================================
- Hits         6077     6013      -64     
+ Misses       3781     3683      -98     
+ Partials      674      664      -10     

Files Changed	Coverage Δ
context/http.go	64.73% <57.14%> (-0.53%)	⬇️

... and 11 files with indirect coverage changes

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[milosgajdos]

I am not sure if moby is setting this; IIRC moby uses https://github.com/distribution/distribution/tree/5f8b59177b672011779a91143a2d2454e4fab2fd/registry/client client in its code, so if this header is not being set in it I see no point for this PR.

I wouldnt be against adding it to the client code, though. CC: @thaJeztah

[wy65701436]

Do you have a source for the specification of X-Request-ID field? Is it defined in the OCI spec?

[liubin]

@wy65701436 It's not an OCI request, it's a unofficial header, https://en.wikipedia.org/wiki/List_of_HTTP_header_fields
@milosgajdos The clients are not limited to moby, in other tools, like harbor, it will proxy requests to distribution behind it.