基于CentOS7創(chuàng)建Docker鏡像指黎，Redis芯砸、NGINX、PHP容器并淋。（如果創(chuàng)建失敗，重啟虛擬機(jī)重新運(yùn)行就可以）
一珍昨、Docker安裝
1. 卸載老版本?
yum -y remove docker docker-common docker-selinux docker-engine
2. 安裝需要的軟件包
yum install -y yum-utils device-mapper-persistent-data lvm2
3. 設(shè)置國(guó)內(nèi)yum源
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
4. 查看docker版本
yum list docker-ce --showduplicates|sort -r
5. 安裝
yum install docker-ce-18.03.1.ce -y
6. 配置docker鏡像源
vi /etc/docker/daemon.json?
{"registry-mirrors": ["http://hub-mirror.c.163.com"]}
7.啟動(dòng)
systemctl start docker
8.加入開(kāi)機(jī)自啟
systemctl enable docker
二县耽、生成鏡像
1、生成個(gè)centos 7鏡像試試
[root@localhost ~]#? docker pull centos:centos7
centos7: Pulling from library/centos
524b0c1e57f8: Pull complete
Digest: sha256:e9ce0b76f29f942502facd849f3e468232492b259b9d9f076f71b392293f1582
Status: Downloaded newer image for centos:centos7
使用命令??docker images? 查看
2镣典、通過(guò)docker構(gòu)建nginx+php+redis環(huán)境（用Dockerfile生成）
（1）創(chuàng)建Dockerfile文件
Redis：
FROM centos:centos7
RUN groupadd -r redis && useradd -r -g redis redis
RUN mkdir data ;\ yum update -y ; \ yum -y install gcc automake autoconf libtool make wget epel-release gcc-c++;
COPY ./redis-5.0.7.tar.gz redis-5.0.7.tar.gz
RUN mkdir -p /usr/src/redis; \
? ??????tar -zxvf redis-5.0.7.tar.gz -C /usr/src/redis; \
? ??????rm -rf redis-5.0.7.tar.gz; \
? ??????cd /usr/src/redis/redis-5.0.7 && make ; \
? ??????cd /usr/src/redis/redis-5.0.7 && make install
COPY ./conf/redis.conf /usr/src/redis/redis-5.0.7/redis.conf
EXPOSE 6379
ENTRYPOINT ["redis-server", "/usr/src/redis/redis-5.0.7/redis.conf"]
NGINX：
FROM centos:centos7
RUN groupadd -r nginx && useradd -r -g nginx nginx
#添加centos源(先下載wget)
COPY ./epel-7.repo /etc/yum.repos.d/epel.repo
RUN mkdir /data \
????&& mkdir /conf \
????&& yum update -y \
????&& yum clean all \
????&& yum makecache \
????&& yum -y install gcc gcc-c++ autoconf automake make zlib zlib-devel net-tools openssl* pcre* wget \
????&& yum clean all && rm -rf /var/cache/yum/*
#聲明匿名卷
VOLUME /data
COPY ./nginx-1.14.1.tar.gz /data/nginx-1.14.1.tar.gz
RUN cd /data \
????&& tar -zxvf nginx-1.14.1.tar.gz \
????&& cd nginx-1.14.1 \
????&& ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx \
????&& make && make install && rm -rf /data/nginx-1.14.1.tar.gz ???
?????&& rm -rf /data/nginx-1.14. \ && ln -s /usr/local/nginx/sbin/* /usr/local/sbin
COPY ./conf/nginx.conf /conf
#進(jìn)入容器時(shí)默認(rèn)打開(kāi)的目錄
WORKDIR /conf
#聲明端口
EXPOSE 80
#容器啟動(dòng)的時(shí)候執(zhí)行,在docker run過(guò)程當(dāng)中是會(huì)被其他指令替代
#CMD ["/usr/local/nginx/sbin/nginx","-c","/conf/nginx.conf","-g","daemon off;"]
#執(zhí)行一條指
ENTRYPOINT ["/usr/local/nginx/sbin/nginx","-c","/conf/nginx.conf","-g","daemon off;"]
PHP：
FROM php:7.3-fpm-alpine
# Version
ENV PHPREDIS_VERSION 4.0.0
# Libs
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
? ??????&& apk add \
? ??????????curl \
? ??????????vim \
? ??????????wget \
? ??????????git \
? ??????????openssl-dev\
? ??????????zip \
? ??????????unzip \
? ??????????g++ make autoconf
# docker方式安裝PDO extension
RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini" \
? ??????&& docker-php-ext-install pdo_mysql \
? ??????&& docker-php-ext-install pcntl \
? ??????&& docker-php-ext-install sysvmsg
# Redis extension
RUN wget http://pecl.php.net/get/redis-${PHPREDIS_VERSION}.tgz -O /tmp/redis.tar.tgz \
? ??&& docker-php-ext-install pdo_mysql \
? ??&& rm -rf /tmp/redis.tar.tgz \
????&& docker-php-ext-enable redis
# 修改php.ini的文件 extension=redis.so
EXPOSE 9000
#設(shè)置工作目錄
WORKDIR /www
（2）執(zhí)行duckerfile文件生成鏡像
到各自文件目錄下運(yùn)行以下命令
docker build -t php_srm_2007 .
docker build -t nginx_srm_2007 .
docker build -t redis_srm_2007 .
注意：生成命令后面帶上“.”
最后生成完成
