Docker环境下Nginx反向代理其他容器的配置问题求助

环境配置 #

Jaeger容器启动命令 #

docker run \
  --name oqm_infra_jaeger \
  -p 8090:16686 \
  -p 8091:14268 \
  -p 8096:4317 \
  -e COLLECTOR_OTLP_ENABLED=true \
  -d jaegertracing/all-in-one:1.42

Nginx容器启动命令 #

docker run \
  --name nginx \
  -p=80:80 \
  --add-host host.docker.internal:host-gateway \
  -v /etc/oqm/serviceConfig/infra/nginx/conf.d/:/etc/nginx/conf.d/\
  -v /etc/oqm/serviceConfig/infra/nginx/conf.other.d/:/etc/nginx/conf.other.d/\
  nginx

Nginx核心配置文件 #

/etc/nginx/conf.d/default.conf

upstream infra-jaeger {
    server host.docker.internal:8090;
}

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

    access_log  /var/log/nginx/host.access.log  main;

    location /infra/jaeger/ {
        proxy_pass http://infra-jaeger/;
        #proxy_redirect http://infra-jaeger/ /;

        proxy_redirect    off;
        add_header Pragma "no-cache";
        add_header Cache-Control "no-cache";
        
        proxy_set_header Host $http_host/infra/jaeger;
        sub_filter 'action="/'  'action="/infra/jaeger/';
        sub_filter 'href="/'  'href="/infra/jaeger/';
        sub_filter 'src="/'  'src="/infra/jaeger/';
        sub_filter_once off;

        include /etc/nginx/conf.other.d/proxy_params;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}

/etc/nginx/conf.other.d/proxy_params

proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;

已尝试的配置及问题 #

尝试1：错误的路径映射 #

location /infra/jaeger/ {
     proxy_pass http://infra-jaeger/infra/jaeger/;
     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_redirect https://infra-jaeger/ /;
}

• 问题：页面返回200，但静态资源（如image.svg）请求路径未带上/infra/jaeger/前缀，导致404加载失败。

尝试2：Host头格式错误 #

location /infra/jaeger/ {
     proxy_pass http://infra-jaeger/;

     proxy_redirect    off;
     add_header Pragma "no-cache";
     add_header Cache-Control "no-cache";

     proxy_set_header Host $http_host/infra/jaeger;
     sub_filter 'action="/'  'action="/infra/jaeger/';
     sub_filter 'href="/'  'href="/infra/jaeger/';
     sub_filter 'src="/'  'src="/infra/jaeger/';
     sub_filter_once off;

     include /etc/nginx/conf.other.d/proxy_params;
}

• 问题：直接返回400错误，提示400 Bad Request: malformed Host header，因为Host头不能包含路径部分。

尝试3：资源内容被错误替换 #

location /infra/jaeger/ {
     proxy_pass $scheme://infra-jaeger/;
     #proxy_redirect http://infra-jaeger/ /;

     # tell backend that message compression not allowed
     proxy_set_header Accept-Encoding "";

     sub_filter_types *;
     sub_filter 'action="/'  'action="/infra/jaeger/';
     sub_filter 'href="/'  'href="/infra/jaeger/';
     sub_filter 'src="/'  'src="/infra/jaeger/';
     sub_filter 'action="./'  'action="/infra/jaeger/';
     sub_filter 'href="./'  'href="/infra/jaeger/';
     sub_filter 'src="./'  'src="/infra/jaeger/';
     sub_filter_once off;

     #add_header Pragma "no-cache";
     #add_header Cache-Control "no-cache";

     include  /etc/nginx/mime.types;
     include /etc/nginx/conf.other.d/proxy_params;
 }

• 问题：初始页面可加载，路径看似已替换，但所有CSS/JS资源返回的是主HTML页面内容，而非实际资源。

解决思路 #

1. 修正Host头配置 #

Host头只能包含域名/IP和端口，不能带路径。将proxy_set_header Host $http_host/infra/jaeger;改为proxy_set_header Host $http_host;，即可避免400错误。

2. 优化Nginx路径匹配与代理规则 #

确保proxy_pass路径匹配正确，同时让Nginx精准处理响应内容替换：

location /infra/jaeger/ {
    proxy_pass http://infra-jaeger/;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Prefix /infra/jaeger; # 传递前缀给Jaeger服务

    # 禁用后端压缩，确保sub_filter能正常解析响应内容
    proxy_set_header Accept-Encoding "";

    # 仅对HTML、JS、CSS类型的响应做路径替换
    sub_filter_types text/html application/javascript text/css;
    sub_filter '="/' '="/infra/jaeger/';
    sub_filter './' '/infra/jaeger/';
    sub_filter_once off;

    include /etc/nginx/conf.other.d/proxy_params;
}

• 说明：X-Forwarded-Prefix可让Jaeger自身生成带前缀的URL，减少Nginx内容替换的工作量。

3. 让Jaeger直接使用前缀启动（最优方案） #

修改Jaeger容器启动命令，添加环境变量指定基础路径，让Jaeger自身生成的所有URL都带上/infra/jaeger前缀，无需Nginx做内容替换：

docker run \
  --name oqm_infra_jaeger \
  -p 8090:16686 \
  -p 8091:14268 \
  -p 8096:4317 \
  -e COLLECTOR_OTLP_ENABLED=true \
  -e QUERY_BASE_PATH=/infra/jaeger \
  -d jaegertracing/all-in-one:1.42

对应的简化Nginx配置：

location /infra/jaeger/ {
    proxy_pass http://infra-jaeger/infra/jaeger/;
    proxy_set_header Host $http_host;
    include /etc/nginx/conf.other.d/proxy_params;
}

• 此方案最可靠，避免了Nginx替换内容时可能出现的资源损坏问题。

4. 修复资源返回HTML的问题 #

尝试3中资源返回HTML，是因为sub_filter_types *让Nginx对所有类型的响应（包括JS/CSS）做字符串替换，破坏了资源内容。只需指定需要替换的类型（text/html、application/javascript、text/css）即可，不要使用通配符*。

内容的提问来源于stack exchange，提问作者Snappawapa