Docker 教程

Docker 安装 PHP

安装 PHP 镜像

方法一、通过 Dockerfile 构建

创建Dockerfile

首先，创建目录php-fpm,用于存放后面的相关东西。

root@localhost:~$ mkdir -p ~/php-fpm/logs ~/php-fpm/conf

logs目录将映射为php-fpm容器的日志目录

conf目录里的配置文件将映射为php-fpm容器的配置文件

进入创建的php-fpm目录，创建Dockerfile

FROM debian:jessie

# persistent / runtime deps
ENV PHPIZE_DEPS \
		autoconf \
		file \
		g++ \
		gcc \
		libc-dev \
		make \
		pkg-config \
		re2c
RUN apt-get update && apt-get install -y \
		$PHPIZE_DEPS \
		ca-certificates \
		curl \
		libedit2 \
		libsqlite3-0 \
		libxml2 \
	--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 GPG_KEYS 0BD78B5F97500D450838F95DFE857D9A90D90EC1 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3

ENV PHP_VERSION 5.6.22
ENV PHP_FILENAME php-5.6.22.tar.xz
ENV PHP_SHA256 c96980d7de1d66c821a4ee5809df0076f925b2fe0b8c362d234d92f2f0a178e2

RUN set -xe \
	&& buildDeps=" \
		$PHP_EXTRA_BUILD_DEPS \
		libcurl4-openssl-dev \
		libedit-dev \
		libsqlite3-dev \
		libssl-dev \
		libxml2-dev \
		xz-utils \
	" \
	&& apt-get update && apt-get install -y $buildDeps --no-install-recommends && rm -rf /var/lib/apt/lists/* \
	&& curl -fSL "http://php.net/get/$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/php \
	&& tar -xf "$PHP_FILENAME" -C /usr/src/php --strip-components=1 \
	&& rm "$PHP_FILENAME" \
	&& cd /usr/src/php \
	&& ./configure \
		--with-config-file-path="$PHP_INI_DIR" \
		--with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \
		$PHP_EXTRA_CONFIGURE_ARGS \
		--disable-cgi \
# --enable-mysqlnd is included here because it's harder to compile after the fact than extensions are (since it's a plugin for several extensions, not an extension in itself)
		--enable-mysqlnd \
# --enable-mbstring is included here because otherwise there's no way to get pecl to use it properly (see https://github.com/docker-library/php/issues/195)
		--enable-mbstring \
		--with-curl \
		--with-libedit \
		--with-openssl \
		--with-zlib \
	&& make -j"$(nproc)" \
	&& make install \
	&& { find /usr/local/bin /usr/local/sbin -type f -executable -exec strip --strip-all '{}' + || true; } \
	&& make clean \
	&& apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false -o APT::AutoRemove::SuggestsImportant=false $buildDeps

COPY docker-php-ext-* /usr/local/bin/

##<autogenerated>##
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"]

通过Dockerfile创建一个镜像，替换成你自己的名字

root@localhost:~/php-fpm$ docker build -t php:5.6-fpm .

创建完成后，我们可以在本地的镜像列表里查找到刚刚创建的镜像

root@localhost:~/php-fpm$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
php                 5.6-fpm             025041cd3aa5        6 days ago          456.3 MB

方法二、docker pull php

查找Docker Hub上的php镜像

root@localhost:~/php-fpm$ docker search php
NAME                      DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
php                       While designed for web development, the PH...   1232      [OK]       
richarvey/nginx-php-fpm   Container running Nginx + PHP-FPM capable ...   207                  [OK]
phpmyadmin/phpmyadmin     A web interface for MySQL and MariaDB.          123                  [OK]
eboraas/apache-php        PHP5 on Apache (with SSL support), built o...   69                   [OK]
php-zendserver            Zend Server - the integrated PHP applicati...   69        [OK]       
million12/nginx-php       Nginx + PHP-FPM 5.5, 5.6, 7.0 (NG), CentOS...   67                   [OK]
webdevops/php-nginx       Nginx with PHP-FPM                              39                   [OK]
webdevops/php-apache      Apache with PHP-FPM (based on webdevops/php)    14                   [OK]
phpunit/phpunit           PHPUnit is a programmer-oriented testing f...   14                   [OK]
tetraweb/php              PHP 5.3, 5.4, 5.5, 5.6, 7.0 for CI and run...   12                   [OK]
webdevops/php             PHP (FPM and CLI) service container             10                   [OK]
...

这里我们拉取官方的镜像,标签为5.6-fpm

root@localhost:~/php-fpm$ docker pull php:5.6-fpm

等待下载完成后，我们就可以在本地镜像列表里查到REPOSITORY为php,标签为5.6-fpm的镜像。

使用php-fpm镜像

运行容器

root@localhost:~/php-fpm$ docker run -p 9000:9000 --name  myphp-fpm -v ~/nginx/www:/www -v $PWD/conf:/usr/local/etc/php -v $PWD/logs:/phplogs   -d php:5.6-fpm
00c5aa4c2f93ec3486936f45b5f2b450187a9d09acb18f5ac9aa7a5f405dbedf
root@localhost:~/php-fpm$

命令说明:

-p 9000:9000 :将容器的9000端口映射到主机的9000端口
--name myphp-fpm :将容器命名为myphp-fpm
-v ~/nginx/www:/www :将主机中项目的目录www挂载到容器的/www
-v $PWD/conf:/usr/local/etc/php ：将主机中当前目录下的conf目录挂载到容器的/usr/local/etc/php
-v $PWD/logs:/phplogs ：将主机中当前目录下的logs目录挂载到容器的/phplogs

查看容器启动情况

root@localhost:~/php-fpm$ docker ps
CONTAINER ID    IMAGE         COMMAND      ...    PORTS                    NAMES
00c5aa4c2f93    php:5.6-fpm   "php-fpm"    ...    0.0.0.0:9000->9000/tcp   myphp-fpm

通过浏览器访问phpinfo()

PS:此处是通过nginx+php实现web服务，nginx配置文件的fastcgi_pass应该配置为myphp-fpm容器的IP。

fastcgi_pass  172.17.0.4:9000;

容器IP的查方法

docker inspect 容器ID或容器名 |grep '"IPAddress"'

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