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环境部署一直是一个很大的问题，无论是开发环境还是生产环境，但是 Docker将开发环境和生产环境以轻量级方式打包，提供了一致的环境。极大的提升了开发部署一致性。当然，实际情况并没有这么简单，因为生产环境和开发环境的配置是完全不同的，比如日志等的问题都需要单独配置，但是至少比以前更加简单方便了，这里以PHP 开发作为例子讲解 Docker 如何布置开发环境。一般来说，一个 PHP 项目会需要以下工具：Web 服务器: Nginx/TengineWeb 程序: PHP-FPM数据库: MySQL/PostgreSQL缓存服务: Redis/Memcache这是最简单的架构方式，在 Docker 发展早期，Docker 被大量的滥用，比如，一个镜像内启动多服务，日志收集依旧是按照 Syslog或者别的老方式，镜像容量非常庞大，基础镜像就能达到 80M，这和 Docker 当初提出的思想完全南辕北辙了，而 Alpine Linux发行版作为一个轻量级 Linux 环境，就非常适合作为 Docker 基础镜像，Docker 官方也推荐使用 Alpine 而不是 Debian作为基础镜像，未来大量的现有官方镜像也将会迁移到 Alpine 上。本文所有镜像都将以 Alpine 作为基础镜像。Nginx/Tengine这部分笔者已经在另一篇文章 Docker 容器的 Nginx 实践中讲解了 Tengine 的 Docker 实践，并且给出了Dockerfile，由于比较偏好 Tengine，而且官方已经给出了 Nginx 的 alpine 镜像，所以这里就用Tengine。笔者已经将镜像上传到官方 DockerHub，可以通过docker pull chasontang/tengine:2.1.2_f获取镜像，具体请看 Dockerfile。PHP-FPMDocker 官方已经提供了 PHP 的 7.0.7-fpm-alpine 镜像，Dockerfile 如下：FROM alpine:3.4# persistent / runtime depsENV PHPIZE_DEPS \autoconf \file \g++ \gcc \libc-dev \make \pkgconf \re2cRUN apk add –no-cache –virtual .persistent-deps \ca-certificates \curl# ensure www-data user existsRUN set -x \&& addgroup -g 82 -S www-data \&& adduser -u 82 -D -S -G www-data www-data# 82 is the standard uid/gid for "www-data" in Alpine# http://git.alpinelinux.org/cgit/aports/tree/main/apache2/apache2.pre-install?h=v3.3.2# http://git.alpinelinux.org/cgit/aports/tree/main/lighttpd/lighttpd.pre-install?h=v3.3.2# http://git.alpinelinux.org/cgit/aports/tree/main/nginx-initscripts/nginx-initscripts.pre-install?h=v3.3.2ENV PHP_INI_DIR /usr/local/etc/phpRUN mkdir -p $PHP_INI_DIR/conf.d####ENV PHP_EXTRA_CONFIGURE_ARGS –enable-fpm –with-fpm-user=www-data –with-fpm-group=www-data####ENV GPG_KEYS 1A4E8B7277C42E53DBA9C7B9BCAA30EA9C0D5763ENV PHP_VERSION 7.0.7ENV PHP_FILENAME php-7.0.7.tar.xzENV PHP_SHA256 9cc64a7459242c79c10e79d74feaf5bae3541f604966ceb600c3d2e8f5fe4794RUN set -xe \&& apk add –no-cache –virtual .build-deps \$PHPIZE_DEPS \curl-dev \gnupg \libedit-dev \libxml2-dev \openssl-dev \sqlite-dev \&& curl -fSL "http://php.net/get/$PHP_FILENAME/from/this/mirror" -o "$PHP_FILENAME" \&& echo "$PHP_SHA256 *$PHP_FILENAME" | sha256sum -c – \&& curl -fSL "http://php.net/get/$PHP_FILENAME.asc/from/this/mirror" -o "$PHP_FILENAME.asc" \&& export GNUPGHOME="$(mktemp -d)" \&& for key in $GPG_KEYS; do \gpg –keyserver ha.pool.sks-keyservers.net –recv-keys "$key"; \done \&& gpg –batch –verify "$PHP_FILENAME.asc" "$PHP_FILENAME" \&& rm -r "$GNUPGHOME" "$PHP_FILENAME.asc" \&& mkdir -p /usr/src \&& tar -Jxf "$PHP_FILENAME" -C /usr/src \&& mv "/usr/src/php-$PHP_VERSION" /usr/src/php \&& rm "$PHP_FILENAME" \&& cd /usr/src/php \&& ./configure \–with-config-file-path="$PHP_INI_DIR" \–with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \$PHP_EXTRA_CONFIGURE_ARGS \–disable-cgi \# –enable-mysqlnd is included here because it's harder to compile after the fact than extensions are (since it's a plugin for several extensions, not an extension in itself)–enable-mysqlnd \# –enable-mbstring is included here because otherwise there's no way to get pecl to use it properly (see https://github.com/docker-library/php/issues/195)–enable-mbstring \–with-curl \–with-libedit \–with-openssl \–with-zlib \&& make -j"$(getconf _NPROCESSORS_ONLN)" \&& make install \&& { find /usr/local/bin /usr/local/sbin -type f -perm +0111 -exec strip –strip-all '{}' + || true; } \&& make clean \&& runDeps="$( \scanelf –needed –nobanner –recursive /usr/local \| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \| sort -u \| xargs -r apk info –installed \| sort -u \)" \&& apk add –no-cache –virtual .php-rundeps $runDeps \&& apk del .build-depsCOPY docker-php-ext-* /usr/local/bin/####WORKDIR /var/www/htmlRUN set -ex \&& cd /usr/local/etc \&& if [ -d php-fpm.d ]; then \# for some reason, upstream's php-fpm.conf.default has "include=NONE/etc/php-fpm.d/*.conf"sed 's!=NONE/!=!g' php-fpm.conf.default | tee php-fpm.conf > /dev/null; \cp php-fpm.d/www.conf.default php-fpm.d/www.conf; \else \# PHP 5.x don't use "include=" by default, so we'll create our own simple config that mimics PHP 7+ for consistencymkdir php-fpm.d; \cp php-fpm.conf.default php-fpm.d/www.conf; \{ \echo '[global]'; \echo 'include=etc/php-fpm.d/*.conf'; \} | tee php-fpm.conf; \fi \&& { \echo '[global]'; \echo 'error_log = /proc/self/fd/2'; \echo; \echo '[www]'; \echo '; if we send this to /proc/self/fd/1, it never appears'; \echo 'access.log = /proc/self/fd/2'; \echo; \echo 'clear_env = no'; \echo; \echo '; Ensure worker stdout and stderr are sent to the main error log.'; \echo 'catch_workers_output = yes'; \} | tee php-fpm.d/docker.conf \&& { \echo '[global]'; \echo 'daemonize = no'; \echo; \echo '[www]'; \echo 'listen = [::]:9000'; \} | tee php-fpm.d/zz-docker.confEXPOSE 9000CMD ["php-fpm"]####
原文链接：https://blog.csdn.net/weixin_42518838/article/details/115942141?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522168623078216800225583599%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=168623078216800225583599&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~times_rank-14-115942141-null-null.268%5Ev1%5Ekoosearch&utm_term=docker%E3%80%81wordpress%E3%80%81wordpress%E5%BB%BA%E7%AB%99%E3%80%81wordpress%E4%B8%BB%E9%A2%98%E3%80%81%E5%AE%B9%E5%99%A8%E9%95%9C%E5%83%8F%E3%80%81
