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/Tengine
Web 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-FPM
Docker 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 deps
ENV PHPIZE_DEPS \
autoconf \
file \
g++ \
gcc \
libc-dev \
make \
pkgconf \
re2c
RUN apk add –no-cache –virtual .persistent-deps \
ca-certificates \
curl
# ensure www-data user exists
RUN 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=v3.3.2
ENV PHP_INI_DIR /usr/local/etc/php
RUN 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 1A4E8B7277C42E53DBA9C7B9BCAA30EA9C0D5763
ENV PHP_VERSION 7.0.7
ENV PHP_FILENAME php-7.0.7.tar.xz
ENV PHP_SHA256 9cc64a7459242c79c10e79d74feaf5bae3541f604966ceb600c3d2e8f5fe4794
RUN 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-deps
COPY docker-php-ext-* /usr/local/bin/
####
WORKDIR /var/www/html
RUN 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 consistency
mkdir 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.conf
EXPOSE 9000
CMD ["php-fpm"]
####
原文链接：https://blog.csdn.net/weixin_35595485/article/details/115570530?ops_request_misc=&request_id=240a025250a34f2fb94e001f9213a178&biz_id=&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~koosearch~default-30-115570530-null-null.268%5Ev1%5Econtrol&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
