nginx和nodejs：连接（）失败（111：连接被拒绝），同时连接到上游

在进入之前，我已经仔细查看了所有可以find的类似问题，没有find解决问题的方法。

我正在运行2个docker容器，1个用于nginx，1个用于nodejs api。 我正在使用nginx作为反向代理。

当我请求localhost / api / x时，我收到一个502坏的网关和nginx日志

nginx_1 | 2015/08/15 15:30:30 [error] 9#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: XXXX, server: _, request: "GET /api/x HTTP/1.1", upstream: "http://127.0.0.1:8543/x", host: "localhost" 

我能够得到端口，8543映射到我的电脑与dockerPS，并可以访问该应用程序就好了。 这导致我得出结论，节点应用程序正在运行，并侦听正确的端口（8543）。 我也可以从错误信息和重写日志中知道请求的URI正在被正确地重写。

• 将nginx反向代理设置为从另一个Docker容器提供服务
• 浏览器服务“容器在Docker Swarm模式下
• 在Docker（或其他容器）中复制Heroku环境
• 在连接到Docker容器内部的Node.js上游时，Nginx连接被拒绝
• 可以fail2ban运行在一个单独的docker集装箱，而某种程度上仍然实现iptables规则的nginx？

我一直在抨击我的头一阵子，不知道什么是错的，任何帮助将不胜感激！

我的nginx.conf：

 user nginx nginx; worker_processes auto; worker_rlimit_nofile 8192; events { worker_connections 8000; } error_log /dev/stderr notice; pid /var/run/nginx.pid; http { # Hide nginx version server_tokens off; rewrite_log on; # mime types include mime.types; default_type application/octet-stream; # Update charset_types due to updated mime.types charset_types text/xml text/plain text/vnd.wap.wml application/x-javascript application/rss+xml text/css application/javascript application/json; # Format to use in log files log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /dev/stdout main; keepalive_timeout 20; sendfile on; tcp_nopush on; # Nodejs API upstream api { server 127.0.0.1:8543; } # Reverse-proxy for the Riot API, S3, and our API server { listen [::]:80; listen 80; server_name _; charset utf-8; # Resolver resolver 8.8.8.8 valid=300s; resolver_timeout 10s; # API, reverse proxy our API location /api/ { limit_except GET { deny all; } rewrite ^/api(/.*)$ $1 break; proxy_pass http://api; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection 'upgrade'; proxy_set_header Host $host; proxy_cache_bypass $http_upgrade; } } } 

我的nginx Dockerfile

 # Set the base image to centos FROM centos:7 # File Author MAINTAINER Andrew Shapro # Install nginx RUN yum update -y && \ yum -y install \ curl \ tar \ openssl-devel \ gcc \ gcc-c++ \ make \ zlib-devel \ pcre-devel \ gd-devel \ krb5-devel # download and compile nginx RUN curl -sLo nginx-1.9.2.tar.gz http://nginx.org/download/nginx-1.9.2.tar.gz \ && mkdir /root/nginx_source \ && tar -xzvf nginx-1.9.2.tar.gz -C /root/nginx_source --strip-components=1 COPY nginx_modules /root/nginx_modules RUN cd /root/nginx_source \ && ./configure \ --user=nginx \ --with-debug \ --group=nginx \ # --prefix=/user/share/nginx \ # --sbin-path=/user/sbin/nginx \ --conf-path=/etc/nginx/nginx.conf \ --pid-path=/run/nginx.pid \ --http-client-body-temp-path=/var/lib/nginx/body \ --http-proxy-temp-path=/var/lib/nginx/proxy \ --lock-path=/run/lock/subsys/nginx \ --error-log-path=/var/log/nginx/error.log \ --http-log-path=/var/log/nginx/access.log \ --with-http_ssl_module \ --with-http_stub_status_module \ --with-http_realip_module \ --with-http_auth_request_module \ --with-http_addition_module \ --with-http_gzip_static_module \ --with-http_image_filter_module \ --with-http_spdy_module \ --with-http_sub_module \ --with-ipv6 \ --add-module=/root/nginx_modules/ngx_devel_kit \ --add-module=/root/nginx_modules/ngx_aws_auth \ && make \ && make install \ && rm -rf /root/nginx_modules /root/nginx_source \ && mkdir --parents /var/lib/nginx # Add nginx configs RUN curl -sLo /usr/local/bin/ep https://github.com/kreuzwerker/envplate/releases/download/v0.0.8/ep-linux && chmod +x /usr/local/bin/ep ADD nginx.conf /etc/nginx/nginx.conf ADD mime.types /etc/nginx/mime.types # Cleanup after build RUN yum clean all \ && yum autoremove -y # Add nginx user RUN adduser -c "Nginx user" nginx EXPOSE 80 # Run nginx # CMD ["stat", "/usr/local/nginx/sbin/nginx"] CMD [ "/usr/local/bin/ep", "-v", "/etc/nginx/nginx.conf", "--", "/usr/local/nginx/sbin/nginx", "-c", "/etc/nginx/nginx.conf", "-g", "daemon off;" ] 

我的节点应用程序

 var express = require('express'); var app = express(); function allTheRoutes (req, res) { res.send('Hello World!'); } app.get('/', allTheRoutes); app.get('/*', allTheRoutes); var app = require('./src/app'); var server = app.listen(process.env.PORT || 8543, process.env.HOST || '127.0.0.1', function () { var host = server.address().address; var port = server.address().port; console.log('Listening at http://%s:%s', host, port); }); 

我的节点Dockerfile

 # Set the base image to centos FROM centos:7 # File Author MAINTAINER Andrew Shapro # Install nginx RUN yum update -y && \ yum -y install curl # Add nvm to $PATH ENV PATH $PATH:$HOME/.nvm/bin # Install nvm RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.26.0/install.sh | bash # Clean up RUN yum clean all \ && yum autoremove -y # Add iojs to $PATH ENV PATH $PATH:/root/.nvm/versions/io.js/v3.0.0/bin # Intall iojs RUN bash -lic 'nvm install iojs-v3.0' # Install PM2 RUN npm install -g pm2 # NPM install WORKDIR /app ADD package.json /app/ RUN npm install # Add app ADD . /app # Add run.sh ADD run.sh run.sh RUN chmod 755 run.sh # Expose port EXPOSE 8543 # run node CMD ["./run.sh"] 

./run.sh运行命令pm2 start -x app.js --no-daemon

泊坞窗，compose.yml

 nginx: build: nginx ports: - "80:80" link: node node: build: node ports: - "8543" environment: - HOST=127.0.0.1 - PORT=8543 

 # Nodejs API upstream api { server node:8543; } 

 docker exec -ti nginx bash cat /etc/hosts 

 nginx: build: nginx ports: - "80:80" link: node node: build: node ports: - "8543:8543" environment: - HOST=127.0.0.1 - PORT=8543