我正在尝试让暂存服务器上找不到的图像自动从生产服务器加载。我在 nginx 1.6.2 上使用以下配置本地测试了此操作：一切按预期运行
server {
root /var/www/html/test;
index index.html index.htm;
# Make site accessible from http://localhost/
server_name nginx1.local;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ @fallback;
# Uncomment to enable naxsi on this location
# include /etc/nginx/naxsi.rules
}
location @fallback{
proxy_pass http://nginx2.local;
}
}
但是在我们的生产服务器中我无法让它工作。生产运行 nginx 1.1.19，我想知道从那时起 proxy_pass 是否发生了变化。请知悉，我是这份工作的新手，目前无法为所有过时的东西负责。
server {
# Specify default_server here as catch-all (sites not in any other 'server' blocks)
listen 80; # ipv4
#listen [::]:80 default ipv6only=on; # ipv6
root /var/www/testing/public;
index index.html index.htm /index.html; # Ending /index.html is a sort of 'internal redirect' because of the starting slash
# Set to "" (empty) as catch-all (in conjuction with listen directive)
server_name "testing.media.foo.com";
##
# Logging Settings
##
access_log /var/www/testing/logs/access.log;
error_log /var/www/testing/logs/error.log;
# Specify a charset
charset utf-8;
# Implement filename-based cache busting ala h5bp
#include /etc/nginx/h5bpconf/cache-busting.conf;
rewrite ^/(.+)\.v(\d+)\.(js|css|png|jpg|jpeg|gif)$ /$1.$3;
# Include other h5bp conf files
include /etc/nginx/h5bpconf/x-ua-compatible.conf;
include /etc/nginx/h5bpconf/protect-system-files.conf;
#include /etc/nginx/h5bpconf/cross-domain-ajax.conf;
include /etc/nginx/h5bpconf/no-transform.conf;
location / {
## Handle alternate domains first
# include /var/www/testing/nginx_conf/alternate_domains.conf;
# First attempt to serve request as file, then
# as directory, then fall back
try_files $uri $uri/ @fallback;
# these h5bp configs only have an effect if try_files finds a file
include /etc/nginx/h5bpconf/expires.conf;
include /etc/nginx/h5bpconf/cross-domain-fonts.conf;
# Uncomment to enable naxsi on this location
# include /etc/nginx/naxsi.rules
}
location @fallback {
proxy_pass http://media.foo.com;
#return 404;
}
# if you don't like seeing all the errors for missing favicon.ico in root
location = /favicon.ico { access_log off; log_not_found off; }
# if you don't like seeing errors for a missing robots.txt in root
location = /robots.txt { access_log off; log_not_found off; }
# this will prevent files like .htaccess .htpassword .secret etc from being served
# You can remove the log directives if you wish to
# log any attempts at a client trying to access a hidden file
#location ~ /\. { deny all; access_log off; log_not_found off; }
#location /doc/ {
# alias /usr/share/doc/;
# autoindex on;
# allow 127.0.0.1;
# deny all;
#}
# Only for nginx-naxsi : process denied requests
#location /RequestDenied {
# For example, return an error code
#return 418;
#}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
#error_page 500 502 503 504 /50x.html;
#location = /50x.html {
# root /usr/share/nginx/www;
#}
}
测试服务器是 testing.media.foo.com 而生产服务器是 media.foo.com 如果在 testing.media.foo.com 上找不到图像，我希望它从 media.foo.com 加载，而不是总是将图像从生产复制到测试中。
编辑：这是 nginx -V 的输出 --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_flv_module --带有-http_geoip_module --带有-http_gzip_static_module --带有-http_image_filter_module --带有-http_mp4_module --带有-http_perl_module --带有-http_random_index_module --带有-http_realip_module --带有-http_secure_link_module --带有-http_stub_status_module --带有-http_ssl_module --带有-http_sub_module --带有-http_xslt_module --带有-ipv6 --带有-sha1=/usr/include/openssl --带有-md5=/usr/include/openssl --带有-mail --带有-mail_ssl_module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.1.19/debian/modules/chunkin-nginx-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/headers-more-nginx-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-development-kit --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-http-push --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-lua --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upload-module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upload-progress --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-dav-ext-module