php - 如何正确链接php-fpm和Nginx Docker容器？

Question

我正在尝试链接2个单独的容器:

nginx:latest

php:fpm

问题是php脚本不起作用。也许php-fpm配置不正确。
这是源代码，位于我的 repository中。这是文件 docker-compose.yml:

nginx:
    build: .
    ports:
        - "80:80"
        - "443:443"
    volumes:
        - ./:/var/www/test/
    links:
        - fpm
fpm:
    image: php:fpm
    ports:
        - "9000:9000"

和 Dockerfile，我曾经根据nginx构建了一个自定义图像:

FROM nginx

# Change Nginx config here...
RUN rm /etc/nginx/conf.d/default.conf
ADD ./default.conf /etc/nginx/conf.d/

最后，这是我自定义的Nginx虚拟主机配置:

server {
    listen  80;

    server_name localhost;
    root /var/www/test;

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

    location / {
        # try to serve file directly, fallback to app.php
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/.+\.php(/|$) {
        fastcgi_pass 192.168.59.103:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param HTTPS off;
    }
}

有人可以帮助我正确配置这些容器以执行php脚本吗？

P.S.
我通过docker-composer运行容器，如下所示:
docker-compose up
从项目根目录。

Answer 1

不要在nginx config中对容器的ip进行硬编码，docker link将链接机器的主机名添加到容器的hosts文件中，您应该能够按主机名ping。

编辑:Docker 1.9 Networking不再需要您链接容器，当多个容器连接到同一网络时，它们的主机文件将被更新，以便它们可以通过主机名相互访问。

每次docker容器从镜像启动(甚至停止/启动现有容器)时，这些容器都会获得docker主机分配的新IP。这些ip与您的实际计算机不在同一子网中。

see docker linking docs(这是compose在后台使用的内容)

but more clearly explained in the docker-compose docs on links & expose

links

links:
 - db
 - db:database
 - redis

An entry with the alias' name will be created in /etc/hosts inside containers for this service, e.g:

172.17.2.186  db
172.17.2.186  database
172.17.2.187  redis

expose

Expose ports without publishing them to the host machine - they'll only be accessible to linked services. Only the internal port can be specified.

如果您设置了项目以通过环境变量获取端口+其他凭据， links automatically set a bunch of system variables:

To see what environment variables are available to a service, run docker-compose run SERVICE env.

name_PORT

Full URL, e.g. DB_PORT=tcp://172.17.0.5:5432

name_PORT_num_protocol

Full URL, e.g. DB_PORT_5432_TCP=tcp://172.17.0.5:5432

name_PORT_num_protocol_ADDR

Container's IP address, e.g. DB_PORT_5432_TCP_ADDR=172.17.0.5

name_PORT_num_protocol_PORT

Exposed port number, e.g. DB_PORT_5432_TCP_PORT=5432

name_PORT_num_protocol_PROTO

Protocol (tcp or udp), e.g. DB_PORT_5432_TCP_PROTO=tcp

name_NAME

Fully qualified container name, e.g. DB_1_NAME=/myapp_web_1/myapp_db_1