Nginx 在 dockerized 时拒绝读取自定义 nginx.config

Question

我创建了一个带有简单代理的自定义 nginx.conf 文件，并将其放在我的项目的根目录中。

nginx.conf

user www-data;
worker_processes auto;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    #include /etc/nginx/sites-enabled/*;

      server { # simple reverse-proxy
      root /var/www/html;
    listen       80;

    # pass requests for dynamic content to rails/turbogears/zope, et al
    location /test1/ {
      proxy_pass      http://dumy/test1/;
    }

    location /test2/ {
      proxy_pass      http://dumy/test2/;
    }
  }
}

#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
#
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}

当我运行我的本地 nginx 服务器 (ubuntu) 一切正常。代理正常工作。

当我尝试通过 docker 容器运行它时，无论我做什么，代理都不起作用。

我的 Dockerfile:

FROM node:alpine AS builder
WORKDIR '/app'
COPY package.json .
RUN npm install
COPY . .
RUN npm run prod

FROM nginxinc/nginx-unprivileged
COPY --from=builder /app/dist /usr/share/nginx/html

COPY nginx.conf /etc/nginx/nginx.conf

EXPOSE 8080
CMD ["nginx","-g", "daemon off;", "-c", "/etc/nginx/nginx.conf"]

我必须使用 nginxinc/nginx-unprivileged 因为该应用程序最终将部署在 openshift 中。上面的 docker 文件将创建 docker 图像。

当我运行:

 docker run -p 8080:8080 <image>

容器将被创建并启动。但是无论我做什么，它都会从默认配置开始。

这就是我运行

得到的结果

nginx -T

容器内：

# configuration file /etc/nginx/conf.d/default.conf:
server {
    listen       8080;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #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;
    #}
}

如您所见，我的 nginx.conf 文件被完全忽略了。就像

 "-c", "/etc/nginx/nginx.conf"

从 Dockerfile 中的 cmd 永远不会运行s。我试图在 docker 运行中传递命令，但没有成功。

你能帮帮我吗？

Answer 1

经过大量的反复试验，我终于成功完成了这项工作。首先将 Dockerfile 中的图像从：nginxinc/nginx-unprivileged 更改为 nginx:alpine

其次，给openshift里面的用户适当的权限。运行 :

oc adm policy add-scc-to-user anyuid system:serviceaccount:<<NAMESPACE>>:default

接下来应在项目的根目录中创建一个 default.conf 文件，并且在服务器 {} 对象中具有与自定义 nginx.conf 文件相同的内容。最后应该对所有文件进行正确的配置。

default.conf:

    server { # simple reverse-proxy
    root /usr/share/nginx/html;
    listen       80;

    # pass requests for dynamic content to rails/turbogears/zope, et al
    location /test1/ {
      proxy_pass      http://dumy/test1/;
    }

    location /test2/ {
      proxy_pass      http://dumy/test2/;
    }
  }

nginx.conf:

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    #include /etc/nginx/sites-enabled/*;

      server { # simple reverse-proxy
      root /var/www/html;
    listen       80;

    # pass requests for dynamic content to rails/turbogears/zope, et al
    location /test1/ {
      proxy_pass      http://dumy/test1/;
    }

    location /test2/ {
      proxy_pass      http://dumy/test2/;
    }
  }
}

Docker 文件：

FROM node:alpine AS builder
WORKDIR '/app'
COPY package.json .
RUN npm install
COPY . .
RUN npm run prod

FROM nginx:alpine
COPY --from=builder /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/
COPY default.conf /etc/nginx/conf.d/

RUN chgrp -R root /var/cache/nginx /var/run /var/log/nginx && \
    chmod -R 770 /var/cache/nginx /var/run /var/log/nginx
EXPOSE 8080
CMD ["nginx","-g", "daemon off;"]

请记住，在 default.conf 和 nginx.conf 文件中，应更改服务器对象内的根目录以匹配静态文件 html 文件的路径。在我的例子中 docker 内的路径是：/usr/share/nginx/html 所以整个根变量应该是：

  root /usr/share/nginx/html;

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