I'm trying to set up an nginx config as follows: When receiving a request like /tile/SteveCountryVic/1/2/3.png
:
- Attempt to pass it through to
http://localhost:5005/1/2/3.png
- If that 404s, pass it to another server as
/tile/SteveCountryVic/1/2/3.png
Here's my config which isn't quite working:
server {
listen 80;
server_name localhost; error_log /tmp/nginx.error.log notice;
access_log /tmp/nginx.access.log;
location /tile/SteveCountryVic/ {
rewrite_log on;
#rewrite ^.*/(\d+)/(\d+)/(\d+).*$ /$1/$2/$3.png break;
proxy_intercept_errors on;
error_page 404 = @dynamiccycletour;
#proxy_set_header Host $http_host;
#proxy_pass http://127.0.0.1:5005;
proxy_redirect /tile/SteveCountryVic/ http://localhost:5005/;
location @dynamiccycletour {
rewrite_log on;
#rewrite ^(\d+)/(\d+)/(\d+).*$ /tile/SteveCountryVic/$1/$2/$3.png break;
proxy_pass http://115.x.x.x:20008;
}
location /tile/ {
proxy_set_header Host $http_host;
proxy_pass http://127.0.0.1:20008;
proxy_cache my-cache;
proxy_cache_valid 200 302 60m;
proxy_cache_valid 404 1m;
}
...
In this configuration, all requests seem to get redirected to the proxied server, but images are ultimately served. In addition, the error log contains these lines:
2013/09/10 09:44:11 [error] 564#0: *138 open() "/etc/nginx/html/tile/SteveCountryVic/13/7399/5027.png" failed (2: No such file or directory), client: 118.x.x.x, server: localhost, request: "GET /tile/SteveCountryVic/13/7399/5027.png?updated=15 HTTP/1.1", host: "mydomain.org"
If instead of using proxy_redirect
, I use rewrite
and proxy_pass
:
rewrite ^.*/(\d+)/(\d+)/(\d+).*$ /$1/$2/$3.png break;
proxy_pass http://127.0.0.1:5005;
Then now I actually see the 404 messages in the browser (ie, they don't get intercepted).
My questions:
- What am I doing wrong?
- Why on earth is nginx looking for files in /etc/nginx/html/...?
- Is there a way to get even more logging information (specifically, to better understand proxy_redirect)?
The alternative version, using
rewrite
andproxy_pass
behaved perfectly - the problem was the other server returning 200's instead of 404's. So for completeness, here is the working config:first thing you haven't set your
root
- directive correctly -> thats why you get a 404 -> thats why all requests are redirected to your @dynamiccycletour (openstreetmap?)btw, whats the difference between /tile/ and /tile/SteveCountryVic/ ?
so we need a little cleanup here first: