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fedora 安装php yaf,构建基于nginx-php-yaf的docker镜像

news 来源：原创 2024/5/6 20:40:50

需求 : php7.1 + nginx

php扩展： yaf、redis、ldap、pdo、mbstring、 mcrypt

阅读完本文后，你能解决以下常见问题：

如何写Dockerfile，并通过Dockerfile构建镜像。

如何通过supervisord管理进程，并将进程日志通过docker logs {container}输出

实现步骤

我们的镜像基于centos:7系统， Dockerfile代码如下：

FROM centos:7

MAINTAINER zhaowei@outlook.com

RUN rpm -Uvh http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm \

&& rpm -Uvh https://sp.repo.webtatic.com/yum/el7/webtatic-release.rpm \

&& yum update -y \

&& yum install -y wget \

sed \

gcc \

gcc-c++ \

gd \

gd-devel \

gmp-devel \

epel-release \

net-tools \

ntpdate \

ntp \

openssh-clients \

curl \

crontabs \

openssl \

openssl-devel \

nginx \

squid \

php71w \

php71w-fpm \

php71w-gd \

php71w-soap \

php71w-pdo_mysql \

php71w-pear \

php71w-devel \

php71w-mbstring \

php71w-mcrypt \

php71w-ldap \

&& yum update -y ntp ntpdate kernel-headers \

&& yum clean all \

&& sed -i 's/http_access deny all/#http_access deny all/g' /etc/squid/squid.conf \

&& cd /tmp \

&& wget -O get-pip.py https://bootstrap.pypa.io/get-pip.py \

&& python get-pip.py \

&& pip install supervisor \

&& mkdir -p /etc/supervisor.d/*.conf \

&& pecl install mongodb \

&& pecl install yaf \

&& wget -c https://github.com/phpredis/phpredis/archive/3.1.4.tar.gz \

&& tar zxvf 3.1.4.tar.gz \

&& cd phpredis-3.1.4 \

&& phpize \

&& ./configure \

&& make \

&& make install \

&& cd .. \

&& rm -rf phpredis* \

&& rm 3.1.4.tar.gz \

&& echo "" >> /etc/php.ini \

&& echo "extension=redis.so" >> /etc/php.ini \

&& echo "extension=yaf.so" >> /etc/php.ini \

&& echo "extension=mongodb.so" >> /etc/php.ini \

&& echo "[yaf]" >> /etc/php.ini \

&& echo "yaf.use_namespace = 1" >> /etc/php.ini

COPY ./supervisord.conf /etc/

COPY ./default.conf /etc/nginx/conf.d/

COPY ./nginx.conf /etc/supervisor.d/

COPY ./php.conf /etc/supervisor.d/

COPY ./ntpdate.conf /etc/supervisor.d/

COPY ./nginx.conf.def /etc/nginx/nginx.conf

COPY ./index.php /data/work/code/

EXPOSE 80 443 3128

WORKDIR /data/work/code

CMD ["supervisord","-c","/etc/supervisord.conf"]

问题

子进程stdout如何重定向到supervisord

Supervisor的监督进程supervisord可以捕获所管理子进程的stdout及stderr，并可以配置为写入日志文件

镜像初步构建成功时，运行容器，并通过 docker logs -f {container} 查看容器日志，总是提示错误，如下：

经过了N多次查询，N多次尝试，终于找到原因，原来是在配置supervisord管理的子进程文件时，如果配置了stdout_logfile=/dev/stdout, 则必须一块配置stdout_logfile_maxbytes=0

查找的资料说明如下：

If anyone stumbles upon this error like me, be aware that the mentioned options apply to the [supervisord] section, within [program:x] sections, you need to use stdout_logfile_maxbytes = 0and/or stderr_logfile_maxbytes = 0 respectively.

using stdout_logfile=/dev/stdout along with stdout_logfile_maxbytes=0

对于需要将supervisord管理的子进程的日志输出到stdout的program，配置如下：

[program:php7-fpm]

command=/usr/local/sbin/php-fpm

autostart = true

stderr_logfile = /dev/stdout

stdout_logfile = /dev/stdout

stdout_logfile_maxbytes = 0

stderr_logfile_maxbytes = 0

参见： http://veithen.github.io/2015/01/08/supervisord-redirecting-stdout.html

php-fpm 的错误日志如何定向到docker logs

看到 https://github.com/docker-library/php/issues/63 解释，将error_log及access.log的配置改成如下error_log=/proc/self/fd/2 和 access.log=/proc/self/fd2即可，一直不明白，/proc/self/fd/2和/dev/stdout /dev/stderr有什么联系，经过ls -al /dev 才明白：

lrwxrwxrwx 1 root root 15 Nov 9 07:44 stderr -> /proc/self/fd/2

lrwxrwxrwx 1 root root 15 Nov 9 07:44 stdin -> /proc/self/fd/0

lrwxrwxrwx 1 root root 15 Nov 9 07:44 stdout -> /proc/self/fd/1

对于我们的需求，是将错误及access信息都在docker logs 中显示，所以，我们配置php-fpm.conf如下：

[global]

error_log=/proc/self/fd/1

文件/etc/php-fpm.d/www.conf配置如下：

php_admin_value[error_log] = /proc/self/fd/1

slowlog = /proc/self/fd/1

catch_workers_output = yes

clear_env=no