我有一个 nginx 容器,位于端口 9200,用作负载均衡器。这是配置文件:
proxy_ignore_headers Set-Cookie;
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
upstream backend {
server 192.168.99.103:9500 weight=3;
server 192.168.99.104:9500;
server 192.168.99.105:9500;
}
server {
listen 80;
server_name 172.17.0.1;
location = /LynyrdSkynyrdFreebirdAudio.mp4 {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
if ($request_method = OPTIONS ) {
add_header Access-Control-Allow-Methods "GET, OPTIONS";
add_header Content-Length 0;
add_header Content-Type text/plain;
return 200;
}
proxy_pass http://backend/;
add_header X-Upstream $upstream_addr;
}
location = /LynyrdSkynyrdFreebirdVideo.mp4 {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
if ($request_method = OPTIONS ) {
add_header Access-Control-Allow-Methods "GET, OPTIONS";
add_header Content-Length 0;
add_header Content-Type text/plain;
return 200;
}
proxy_pass http://backend;
add_header X-Upstream $upstream_addr;
}
}
此容器以以下方式对请求进行负载平衡:当请求到达时localhost:9200/LynyrdSkynyrdFreebirdVideo.mp4
,localhost:9200/LynyrdSkynyrdFreebirdAudio.mp4
它会在 3 台服务器之间平衡请求。这 3 台服务器是充当缓存的 3 个 nginx 容器。这是 nginx 缓存的配置文件:
proxy_cache_path /tmp/nginx levels=1:2 keys_zone=my_zone:10m inactive=60m;
proxy_cache_key "$scheme$request_method$host$request_uri";
proxy_cache_methods GET HEAD POST;
proxy_cache_valid 200 206 100m;
proxy_ignore_headers Set-Cookie;
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Allow-Headers' 'Range';
server {
listen 80;
server_name 172.17.0.1;
#charset koi8-r;
#access_log /var/log/nginx/log/host.access.log main;
location / {
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
location /demo/ {
proxy_cache my_zone;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass http://172.17.0.1:8700/shaka-player-master/demo/index1.html ;
}
location /media {
proxy_cache my_zone;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass http://172.17.0.1:8700/shaka-player-master/media/example-av.mpd ;
}
location = /example-av1.mpd {
add_header 'Access-Control-Allow-Origin' '*';
proxy_cache my_zone;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass http://192.168.99.103:9600/shaka-player/media/example-av1.mpd;
}
location = /LynyrdSkynyrdFreebirdVideo.mp4 {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
proxy_cache my_zone;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass http://192.168.99.103:9600/shaka-player/media/LynyrdSkynyrdFreebirdVideo.mp4 ;
}
location = /LynyrdSkynyrdFreebirdAudio.mp4 {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
proxy_cache my_zone;
add_header X-Proxy-Cache $upstream_cache_status;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
proxy_pass http://192.168.99.103:9600/shaka-player/media/LynyrdSkynyrdFreebirdAudio.mp4;
}
}
如果我指向负载均衡器,即localhost:9200/LynyrdSkynyrdFreebirdVideo.mp4
或localhost:9200/LynyrdSkynyrdFreebirdAudio.mp4
,则找不到404
。我预计,如果我指向此 URL,负载均衡器会将请求平衡到192.168.99.103(or 104, or 105):9500/LynyrdSkynyrdFreebirdVideo.mp
4 或192.168.99.103(or 104, or 105):9500/LynyrdSkynyrdFreebirdAudio.mp4
。但在upstream
块中,我不知道是否server
可以在指令中添加路径。
事实上,我认为这就是问题的关键:事实上,如果我指向 192.168.99.103 (or
104 , or
105 )
:9500/LynyrdSkynyrdFreebirdAudio(或 Video).mp4,我就能正确获取内容。
答案1
解决了:
我已经添加了路径http://backend
,例如:
proxy_pass http://backend/LynyrdSkynyrdFreebirdVideo.mp4;