Seems like it's resolved:

$ curl -I
http://dev.ts-export.com/kuriyamacache/images/parts/13375/thumbnail_0/1_1.jpg
HTTP/1.1 200 OK
Server: nginx
Date: Sat, 19 Mar 2016 20:42:46 GMT
Content-Type: image/jpeg
Content-Length: 53491
Connection: keep-alive
Last-Modified: Thu, 10 Mar 2016 05:01:30 GMT
ETag: "d0f3-52daab51fbe80"
Expires: Sun, 19 Mar 2017 20:42:46 GMT
Cache-Control: max-age=31536000
Cache-Control: public, max-age=31536000
X-Cache-Status: MISS
Accept-Ranges: bytes

$ curl -I
http://dev.ts-export.com/kuriyamacache/images/parts/13375/thumbnail_0/1_1.jpg
HTTP/1.1 200 OK
Server: nginx
Date: Sat, 19 Mar 2016 20:42:48 GMT
Content-Type: image/jpeg
Content-Length: 53491
Connection: keep-alive
Last-Modified: Thu, 10 Mar 2016 05:01:30 GMT
ETag: "d0f3-52daab51fbe80"
Expires: Sun, 19 Mar 2017 20:42:48 GMT
Cache-Control: max-age=31536000
Cache-Control: public, max-age=31536000
X-Cache-Status: HIT
Accept-Ranges: bytes

CJ Ess wrote:
> I think I've run into the problem before - move the proxypass
> statement from the top of the location stanza to the bottom, and I
> think that will solve your issue.
>
>
> On Sat, Mar 19, 2016 at 4:10 PM, shiz <nginx-forum@forum.nginx.org
> <mailto:nginx-forum@forum.nginx.org>> wrote:
>
> Been playing with this for 2 days.
>
> proxy_pass is working correctly but the proxy_cache_path remains empty
> whatever I make.
>
>
> Here's the source I use for tests:
> root@NC-PH-0657-10:/etc/nginx/snippets# curl -X GET -I
> http://www.kuriyama-truck.com/images/parts/13375/thumbnail_0/1_1.jpg
> HTTP/1.1 200 OK
> Date: Sat, 19 Mar 2016 18:15:16 GMT
> Server: Apache/2.4.16 (Amazon) PHP/5.6.17
> Last-Modified: Thu, 10 Mar 2016 05:01:30 GMT
> ETag: "d0f3-52daab51fbe80"
> Accept-Ranges: bytes
> Content-Length: 53491
> Content-Type: image/jpeg
>
> Now here's the response from the nginx:
> root@NC-PH-0657-10:/etc/nginx/snippets# curl -X GET -I
> http://dev.ts-export.com/kuriyamacache/images/parts/13375/thumbnail_0/1_1.jpg
> HTTP/1.1 200 OK
> Server: nginx
> Date: Sat, 19 Mar 2016 18:14:46 GMT
> Content-Type: image/jpeg
> Content-Length: 53491
> Connection: keep-alive
> Expires: Sun, 19 Mar 2017 18:14:46 GMT
> Cache-Control: max-age=31536000
> Cache-Control: public
> X-Cache-Status: MISS
> Accept-Ranges: bytes
>
> Here are the request headers from my browser:
> GET /kuriyamacache/images/parts/13375/thumbnail_1/1_1.jpg HTTP/1.1
> Host: dev.ts-export.com http://dev.ts-export.com
> Connection: keep-alive
> Cache-Control: max-age=0
> Accept:
> text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
> Upgrade-Insecure-Requests: 1
> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36
> (KHTML,
> like Gecko) Chrome/49.0.2623.87 Safari/537.36
> DNT: 1
> Accept-Encoding: gzip, deflate, sdch
> Accept-Language: fr-CA,fr;q=0.8,en-US;q=0.6,en;q=0.4,ja;q=0.2,de;q=0.2
> Cookie: PRUM_EPISODES=s=1458412951203
>
> Part of my setup:
>
> proxy_cache_path /tmp/nginx/dev levels=1:2 keys_zone=my_zone:10m
> max_size=10g inactive=60m use_temp_path=off;
>
> server {
>
> set $rule_3 0;
> set $rule_4 0;
> set $rule_5 0;
> set $rule_8 0;
> set $rule_9 0;
>
> server_name dev.ts-export.com http://dev.ts-export.com;
> listen 80;
> listen [::]:80;
>
> root /home/tsuchi/public_html;
>
> if ($reject_those_args) {
> return 403;
> }
>
> include snippets/filters.conf;
>
> error_page 404 /404.html;
>
> if ($request_uri ~ "^/index.(php|html?)$" ) {
> return 301 $scheme://dev.ts-export.com http://dev.ts-export.com;
> }
>
>
> # no SSL for IE6-8 on XP and Android 2.3
> if ($scheme = https) {
> set $rule_8 1$rule_8;
> }
> if ($http_user_agent ~ "MSIE (6|7|8).*Windows NT 5|Android 2\.3"){
> set $rule_8 2$rule_8;
> }
> if ($rule_8 = "210"){
> return 301 http://dev.ts-export.com$request_uri;
> }
>
>
> location = / {
> allow all;
> }
>
> location = /robots.txt {
> add_header X-Robots-Tag noindex;
> }
>
>
> location '/.well-known/acme-challenge' {
> default_type "text/plain";
> root /tmp/letsencrypt-auto;
> }
>
> include snippets/proxyimg.conf;
>
> location / {
> try_files $uri $uri/ @rewrites;
> allow all;
> }
> (...)
> }
>
> Contents of proxyimg.conf:
>
> location ^~ /kuriyamacache {
> expires 1y;
> access_log off;
> log_not_found off;
> resolver 127.0.0.1;
>
> proxy_pass http://www.kuriyama-truck.com/;
>
> proxy_cache my_zone;
> proxy_cache_key "$scheme$request_method$host$request_uri";
> proxy_buffering on;
>
> proxy_cache_valid 200 301 302 60m;
> proxy_cache_valid 404 1m;
> proxy_cache_use_stale error timeout http_500 http_502 http_503
> http_504;
> proxy_cache_revalidate on;
> proxy_cache_lock on;
>
> proxy_set_header Host $host;
> proxy_set_header X-Real-IP $remote_addr;
> proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
>
> proxy_ignore_headers X-Accel-Redirect X-Accel-Expires
> X-Accel-Limit-Rate
> X-Accel-Buffering X-Accel-Charset Set-Cookie Cache-Control Vary
> Expires;
>
> proxy_pass_header ETag;
> proxy_hide_header Cache-Control;
>
> add_header Cache-Control "public, max-age=31536000";
> add_header X-Cache-Status $upstream_cache_status;
>
> }
>
> Posted at Nginx Forum:
> https://forum.nginx.org/read.php?2,265504,265504#msg-265504
>
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>
>
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