在我开始之前，我已经查看了我能找到的每一个类似的问题，但我发现没有任何东西可以解决我的问题。
我正在运行 2 个 docker 容器，1 个用于 nginx，1 个用于 nodejs api。我使用 nginx 作为反向代理。
当我请求 localhost/api/x 时，我收到 502 bad gateway 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: X.X.X.X, server: _, request: "GET /api/x HTTP/1.1", upstream: "http://127.0.0.1:8543/x", host: "localhost"
我可以使用 docker ps 在我的计算机上获取 8543 映射到的端口，并且可以正常访问那里的应用程序。这使我得出结论，节点应用程序正在运行，并且正在侦听正确的端口 (8543)。我还可以从错误消息和重写日志中看出请求 uri 正在被正确重写。
我一直在努力解决这个问题，但无法弄清楚出了什么问题，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
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
码头工人-compose.yml
nginx:
build: nginx
ports:
- "80:80"
link: node
node:
build: node
ports:
- "8543"
environment:
- HOST=127.0.0.1
- PORT=8543