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PROXY Protocol aware Proxy Server on Node.js
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moznion
April 27, 2019
Technology
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PROXY Protocol aware Proxy Server on Node.js
This slides for Kyoto.js #16
moznion
April 27, 2019
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Transcript
PROXY Protocol Aware Proxy Server on Node.js Kyoto.js #16 @moznion
@moznion Software engineer
PROXY Protocol
Proxy PROTOCOL - Transport Layer (L4) ൛ͷX-Forwarder-For - Proxy͢ΔࡍʹoriginalͷΞυϨεΛҡ࣋ͯ͠ ѼઌϑΥϫʔυ͢ΔͨΊͷϓϩτίϧ
- HAProxy͕ఏএ (ۀքඪ४Έ͍ͨͳʁ) - http://www.haproxy.org/download/1.8/doc/proxy-protocol.txt - AWSͷELBͰαϙʔτͯ͠Δ - V1ͱV2͕͋Δ (ޙड़)
PROXY Protocol V1
Proxy PROTOCOL V1 - ςΩετϓϩτίϧ - ϑΥʔϚοτ: PROXY <INET Protocol
Family> <Source Address> <Destination Address> <Source Port> <Destination Port>\r\n - Θ͔Γ͍͢Ͱ͢Ͷ
PROXY Protocol V2
Proxy PROTOCOL V2 - όΠφϦϓϩτίϧ - આ໌ུ (ͪΐͬͱ໘͍͘͞) - V1ͱͷػೳ໘Ͱͷେ͖ͳࠩUNIX
Domain SocketΛαϙʔτ͍ͯ͠Δ͔Ͳ͏͔
Example (V1)
Example (V1) PROXY TCP4 192.168.0.1 192.168.0.11 56324 443\r\n GET /
HTTP/1.1\r\n Host: 192.168.0.11\r\n \r\n
Example (V1) PROXY TCP4 192.168.0.1 192.168.0.11 56324 443\r\n GET /
HTTP/1.1\r\n Host: 192.168.0.11\r\n \r\n طଘͷ௨৴ͷΞλϚʹprepend͢Δ
Proxy PROTOCOL - طଘͷ௨৴ͷΞλϚʹprepend͢Δ - γϯϓϧʂ - => ૹ৴ݩૹ৴ઌʮPROXY ProtocolΛ͏ʯ
ͱ͍͏͜ͱΛࣄલʹ͓ͬͯ͘ඞཁ༗Γ - ͞ͳ͍ͱͿͬյΕΔ
Motivation
nodeͰΓ͍ͨΜʁ ʢੈͷதʹ৭ʑͳ͜ͱ͕͋Δʣ
proxy-protocol-js - ͱ͍͏Θ͚Ͱॻ͍ͨ - https://github.com/moznion/proxy-protocol-js - TypeScript - V1/V2྆ରԠ -
encode/decode྆ରԠ
proxy-protocol-js - ۤ࿑ϙΠϯτ:
Example Implementation and Demo
https://github.com/moznion/proxy- protocol-socket-server-example