简单的 docker-由两个服务组成：nginx 和 php

Question

我从 Docker and nginx 开始，我正在尝试设置两个容器环境运行:

nginx:latest一侧
php:fpm另一边

我在使用 php-fpm 时遇到问题：我总是收到 502 Bad Gateway 错误。

我的设置很简单（$TEST_DIR 是我的工作目录）。

我的 Docker 撰写配置 TEST_DIR/docker-compose.yml:

nginx:
    image: nginx
    ports:
        - "8080:80"
    volumes:
        - ./www:/usr/share/nginx/html
        - ./conf/nginx.conf:/nginx.conf
        - ./logs/nginx:/var/log/nginx
    links:
        - php:php
    command: nginx -c /nginx.conf

php:
    image: php:fpm
    ports:
        - "9000:9000"
    volumes:
        - ./www:/var/www/html

nginx 配置$TEST_DIR/conf/nginx.conf:

user  nginx;
worker_processes  1;
pid        /var/run/nginx.pid;

events {
    worker_connections  2048;
    multi_accept on;
    use epoll;
}

http {

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

    server_tokens off;
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 15;
    types_hash_max_size 2048;
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    access_log off;
    error_log off;
    gzip on;
    gzip_disable "msie6";
    open_file_cache max=100;


    upstream php-upstream {
        server php:9000;
    }

    server {
        listen       80;
        server_name  localhost;

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

        # Pass PHP scripts to PHP-FPM
        location ~* \.php$ {
            fastcgi_pass    php-upstream;

            include         fastcgi_params;
            fastcgi_param   SCRIPT_FILENAME    /var/www/html$fastcgi_script_name;
            fastcgi_param   SCRIPT_NAME        $fastcgi_script_name;
            fastcgi_param   HTTPS off;
        }

        error_log  /var/log/nginx/php_error.log;
        access_log  /var/log/nginx/php_access.log;
    }
}

daemon off;

然后，我将我的 PHP 内容放在与 docker-compose.yml 相同的目录中：

$TEST_DIR/www/test.php

<?php phpinfo(); ?>

如果我使用 docker-compose up 启动基础设施然后转到 localhost:8080/test.php，那么我会得到 502 Bad Gateway 以及来自 nginx 的以下错误：

[error] 6#6: *1 connect() failed (113: No route to host) while connecting to upstream, client: 172.17.42.1, server: localhost, request: "GET /phpinsfo2.php HTTP/1.1", upstream: "fastcgi://172.17.0.221:9000", host: "localhost:8080"

导致错误的原因是什么？

Answer 1

我终于成功了。

问题是我的主机 (Fedora 21) 启用了防火墙。

这样做：systemctl stop firewalld 解决了我的问题。

显然这是 Red Hat 的一个众所周知的问题 Linux:
Bug 1098281 - Docker interferes with firewall initialisation via firewalld

简单的 docker-由两个服务组成：nginx 和 php

Simple docker-compose with two services: nginx and php

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