gunzip을 사용해 Cache key절약

아래설정으로 Accept-Encoding이 없을 경우 gzip으로 원본으로 요청하고 원본응답 저장

 

 if ($http_accept_encoding ~ br) { set $encoding "br, gzip"; break; }
 if ($http_accept_encoding ~ gzip) { set $encoding "gzip"; break; }
 if ($http_accept_encoding = "") { set $encoding "gzip"; break; }
 proxy_ignore_headers Vary ;
 proxy_cache_key $host$uri$is_args$args$encoding;
 gunzip on;
 proxy_set_header Accept-Encoding "$encoding";

 

 

(테스트) relay로 raw 요청 시 gunzip으로 풀어서 응답 (cache된 파일은 gzip으로 응답옴) 

# curl org/1.json -I
HTTP/1.1 200 OK
Server: nginx/1.25.4
Date: Sat, 27 Apr 2024 17:16:27 GMT
Content-Type: application/json
Content-Length: 4346
Last-Modified: Wed, 21 Feb 2024 06:27:24 GMT
Connection: keep-alive
Vary: Accept-Encoding
ETag: "65d597cc-10fa"
Cache-Control: max-age=120
Accept-Ranges: bytes

# curl relay/1.json -I
HTTP/1.1 200 OK
Server: nginx/1.25.4
Date: Sat, 27 Apr 2024 17:16:33 GMT
Content-Type: application/json
Connection: keep-alive
Last-Modified: Wed, 21 Feb 2024 06:27:24 GMT
Vary: Accept-Encoding
ETag: W/"65d597cc-10fa"
Cache-Control: max-age=120
X-CACHE-STATUS: MISS

# head -n 15 /var/cache/nginx/3/1a/88e8b9e64fbc7833d180cdb7a6e251a3
i3-f̗▒e▒2-fSʪ▒g▒W/"65d597cc-10fa"
KEY: relay/1.jsongzip
HTTP/1.1 200 OK
Server: nginx/1.25.4
Date: Sat, 27 Apr 2024 17:16:33 GMT
Content-Type: application/json
Last-Modified: Wed, 21 Feb 2024 06:27:24 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
ETag: W/"65d597cc-10fa"
Cache-Control: max-age=120
Content-Encoding: gzip