[PATCH] RFC: upgrade connection for proxied docker streams

[Jean-Tiare LE BIGOT]

Hi,

This patch adds support for proxying Docker's "hijacked" HTTP
connections. It shares most logic with websocket's "upgrade" mechanism.

Basically, it detects the 'application/vnd.docker.raw-stream"
Content-Type header and marks the connection for upgrade in this case.

I also hit a strange behavior with the chunked transfer terminating
sequence "0\r\n\r\n" being sent even on this upgraded connection hence
the "u->headers_in.chunked = 0;" in "ngx_http_upstream_upgrade".

Feedback appreciated.

Regards,

PS: I failed to register to this mailing list with jt AT yadutaf DOT fr,
any idea why ?

--
Jean-Tiare

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