Dockerfile构建PHP开发镜像：Alpine+Nginx+PHP7+Supervisor+Crontab+Laravel

一、配置目录结构

1.1 crontabs

# do daily/weekly/monthly maintenance
# min   hour    day     month   weekday command
# *         *         *         *         *         /usr/bin/php /usr/share/nginx/html/artisan schedule:run >> /dev/null 2>&1

Tips：一般在生产环境都是负载均衡，定时任务是单独在一个容器执行，故此是注释掉的，需要单独在定时任务容器中打开即可。

2.1 nginx与php配置文件

Tips：由于php配置文件是监听的sock,默认情况下监听端口 9000。PHP-FPM使用Unix套接字，这避免了TCP的开销。

3.1 php

二、Dockerfile详解

#1.Base Image
FROM alpine

# ensure www-data user exists
#RUN set -x \
#    && addgroup -g 82  -S www-data \
#    && adduser -u 82 -D -S -G www-data www-data

# Environments
ENV TIMEZONE            Asia/Shanghai
ENV PHP_MEMORY_LIMIT    512M
ENV MAX_UPLOAD          50M
ENV PHP_MAX_FILE_UPLOAD 200
ENV PHP_MAX_POST        100M
ENV COMPOSER_ALLOW_SUPERUSER 1

#2.ADD-PHP-FPM

# Mirror mirror switch to Alpine Linux - http://dl-4.alpinelinux.org/alpine/
RUN apk update \
    && apk upgrade \
    && apk add \
        curl \
        tzdata \
        php7-fpm\
        php7 \
        php7-dev \
        php7-apcu \
        php7-bcmath \
        php7-xmlwriter \
        php7-ctype \
        php7-curl \
        php7-exif \
        php7-iconv \
        php7-intl \
        php7-json \
        php7-mbstring\
        php7-opcache \
        php7-openssl \
        php7-pcntl \
        php7-pdo \
        php7-mysqlnd \
        php7-mysqli \
        php7-pdo_mysql \
        php7-pdo_pgsql \
        php7-phar \
        php7-posix \
        php7-session \
        php7-xml \
        php7-simplexml \
        php7-mcrypt \
        php7-xsl \
        php7-zip \
        php7-zlib \
        php7-dom \
        php7-redis\
        php7-tokenizer \
        php7-gd \
        php7-mongodb\
        php7-fileinfo \
        php7-zmq \
        php7-memcached \
        php7-xmlreader \
     && cp /usr/share/zoneinfo/${TIMEZONE} /etc/localtime \
    && echo "${TIMEZONE}" > /etc/timezone \
    && apk del tzdata \
     && rm -rf /var/cache/apk/*

# https://github.com/docker-library/php/issues/240
# https://gist.github.com/guillemcanal/be3db96d3caa315b4e2b8259cab7d07e
# https://forum.alpinelinux.org/forum/installation/php-iconv-issue

RUN mkdir -p /usr/local/var/log/php7/
RUN mkdir -p /usr/local/var/run/
COPY ./php/php-fpm.conf /etc/php7/
COPY ./php/www.conf /etc/php7/php-fpm.d/

RUN apk add --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/testing gnu-libiconv
ENV LD_PRELOAD /usr/lib/preloadable_libiconv.so php
RUN rm -rf /var/cache/apk/*


# Set environments
RUN sed -i "s|;*date.timezone =.*|date.timezone = ${TIMEZONE}|i" /etc/php7/php.ini && \
    sed -i "s|;*memory_limit =.*|memory_limit = ${PHP_MEMORY_LIMIT}|i" /etc/php7/php.ini && \
    sed -i "s|;*upload_max_filesize =.*|upload_max_filesize = ${MAX_UPLOAD}|i" /etc/php7/php.ini && \
    sed -i "s|;*max_file_uploads =.*|max_file_uploads = ${PHP_MAX_FILE_UPLOAD}|i" /etc/php7/php.ini && \
    sed -i "s|;*post_max_size =.*|post_max_size = ${PHP_MAX_POST}|i" /etc/php7/php.ini && \
    sed -i "s|;*cgi.fix_pathinfo=.*|cgi.fix_pathinfo= 0|i" /etc/php7/php.ini

#3.Install-Composer
RUN curl -sS https://getcomposer.org/installer | \
    php -- --install-dir=/usr/bin/ --filename=composer



#4.ADD-NGINX
RUN apk add nginx
COPY ./nginx/conf.d/default.conf /etc/nginx/conf.d/
COPY ./nginx/nginx.conf /etc/nginx/
COPY ./nginx/cert/ /etc/nginx/cert/

RUN mkdir -p /usr/share/nginx/html/public/
COPY ./php/index.php /usr/share/nginx/html/public/
#RUN mkdir -p /run/nginx
#RUN touch /run/nginx/nginx.pid
# Expose volumes

VOLUME ["/usr/share/nginx/html", "/usr/local/var/log/php7", "/var/run/"]
WORKDIR /usr/share/nginx/html


#5.ADD-SUPERVISOR
RUN apk add supervisor \
 && rm -rf /var/cache/apk/*

# Define mountable directories.
VOLUME ["/etc/supervisor/conf.d", "/var/log/supervisor/"]
COPY ./supervisor/conf.d/ /etc/supervisor/conf.d/

#6.ADD-CRONTABS
COPY ./crontabs/default /var/spool/cron/crontabs/
RUN cat /var/spool/cron/crontabs/default >> /var/spool/cron/crontabs/root
RUN mkdir -p /var/log/cron \
 && touch /var/log/cron/cron.log

VOLUME /var/log/cron

#8.添加启动脚本
# Define working directory.
WORKDIR /usr/share/nginx/html
COPY ./entrypoint.sh /usr/share/nginx/html/
RUN chmod +x /usr/share/nginx/html/entrypoint.sh
#CMD ["supervisord", "--nodaemon", "--configuration", "/etc/supervisor/conf.d/supervisord.conf"]
ENTRYPOINT ["./entrypoint.sh"]

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