如何在Docker中将端口从主机公开到容器？
您可以在Docker中使用EXPOSE进行以下操作：
EXPOSE指令通知Docker，容器将在运行时监听指定的networking端口。
我可以做相反的事吗？ 我可以从我的Ubuntu暴露端口到docker集装箱？
背景：我试图设置一个简单的php7-fpm作为docker镜像，我想将port 3306（MySQL服务）公开到docker容器中。
我的Dockerfile ：
FROM debian:jessie # persistent / runtime deps RUN apt-get update && apt-get install -y ca-certificates curl libpcre3 librecode0 libsqlite3-0 libxml2 --no-install-recommends && rm -r /var/lib/apt/lists/* # phpize deps RUN apt-get update && apt-get install -y autoconf file g++ gcc libc-dev make pkg-config re2c --no-install-recommends && rm -r /var/lib/apt/lists/* ENV PHP_INI_DIR /usr/local/etc/php RUN mkdir -p $PHP_INI_DIR/conf.d ##<autogenerated>## ENV PHP_EXTRA_CONFIGURE_ARGS --enable-fpm --with-fpm-user=www-data --with-fpm-group=www-data ##</autogenerated>## ENV PHP_VERSION 7.0.0RC2 # --enable-mysqlnd is included below because it's harder to compile after the fact the extensions are (since it's a plugin for several extensions, not an extension in itself) RUN buildDeps=" \ $PHP_EXTRA_BUILD_DEPS \ libcurl4-openssl-dev \ libpcre3-dev \ libreadline6-dev \ librecode-dev \ libsqlite3-dev \ libssl-dev \ libxml2-dev \ xz-utils \ " \ && set -x \ && apt-get update && apt-get install -y $buildDeps --no-install-recommends && rm -rf /var/lib/apt/lists/* \ && curl -SL "https://downloads.php.net/~ab/php-$PHP_VERSION.tar.xz" -o php.tar.xz \ && mkdir -p /usr/src/php \ && tar -xof php.tar.xz -C /usr/src/php --strip-components=1 \ && rm php.tar.xz* \ && cd /usr/src/php \ && ./configure \ --with-config-file-path="$PHP_INI_DIR" \ --with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \ $PHP_EXTRA_CONFIGURE_ARGS \ --disable-cgi \ --enable-mysqlnd \ --with-pdo-mysql \ --enable-mbstring \ --with-curl \ --with-openssl \ --with-pcre \ --with-readline \ --with-recode \ --with-zlib \ && make -j"$(nproc)" \ && make install \ && { find /usr/local/bin /usr/local/sbin -type f -executable -exec strip --strip-all '{}' + || true; } \ && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false -o APT::AutoRemove::SuggestsImportant=false $buildDeps \ && make clean COPY docker-php-ext-* /usr/local/bin/ ##<autogenerated>## WORKDIR /var/www/html COPY php-fpm.conf /usr/local/etc/ EXPOSE 9000 CMD ["php-fpm"] ##</autogenerated>##
这是我用来运行我的容器的命令：
docker run --name=php7-fpm -v /var/www/html/:/var/www/html/ -p 9002:9000 marty/php7
我的PHP应用数据库configuration：
database: main: host: 127.0.0.1 dbname: edu user: root password: myPassword port: 3306
你可以使用--net=host来运行容器，然后直接访问主机端口。 请参阅https://docs.docker.com/reference/run/#network-settings