方法一、docker pull httpd

查找Docker Hub上的httpd镜像
runoob@runoob:~/apache$ docker search httpdNAME DESCRIPTION STARS OFFICIAL AUTOMATEDhttpd The Apache HTTP Server .. 524 [OK] centos/httpd 7 [OK]rgielen/httpd-image-php5 Docker image for Apache... 1 [OK]microwebapps/httpd-frontend Httpd frontend allowing... 1 [OK]lolhens/httpd Apache httpd 2 Server 1 [OK]publici/httpd httpd:latest 0 [OK]publicisworldwide/httpd The Apache httpd webser... 0 [OK]rgielen/httpd-image-simple Docker image for simple... 0 [OK]solsson/httpd Derivatives of the offi... 0 [OK]rgielen/httpd-image-drush Apache HTTPD + Drupal S... 0 [OK]learninglayers/httpd 0 [OK]sohrabkhan/httpd Docker httpd + php5.6 (... 0 [OK]aintohvri/docker-httpd Apache HTTPD Docker ext... 0 [OK]alizarion/httpd httpd on centos with mo... 0 [OK]...

这里我们拉取官方的镜像
runoob@runoob:~/apache$ docker pull httpd

等待下载完成后，我们就可以在本地镜像列表里查到REPOSITORY为httpd的镜像。
runoob@runoob:~/apache$ docker images httpdREPOSITORY TAG IMAGE ID CREATED SIZEhttpd latest da1536b4ef14 23 seconds ago 195.1 MB方法二、通过 Dockerfile构建

创建Dockerfile
首先，创建目录apache,用于存放后面的相关东西。
runoob@runoob:~$ mkdir -p ~/apache/www ~/apache/logs ~/apache/conf

www目录将映射为apache容器配置的应用程序目录
logs目录将映射为apache容器的日志目录
conf目录里的配置文件将映射为apache容器的配置文件
进入创建的apache目录，创建Dockerfile
FROM debian:jessie# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added#RUN groupadd -r www-data && useradd -r --create-home -g www-data www-dataENV HTTPD_PREFIX /usr/local/apache2ENV PATH

HTTPD_PREFIX/binRUN mkdir -p "HTTPD_PREFIX"WORKDIR HTTPD_VERSION.tar.bz2RUN buildDeps=' ca-certificates curl bzip2 gcc libpcre++-dev libssl-dev make ' set -x && apt-get update && apt-get install -y --no-install-recommends HTTPD_BZ2_URL" -o httpd.tar.bz2 && curl -fSL "(mktemp -d)" && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys A93D62ECC3C8EA12DB220EC934EA76E6791485A8 && gpg --batch --verify httpd.tar.bz2.asc httpd.tar.bz2 && rm -r "HTTPD_PREFIX" --enable-mods-shared=reallyall && make -j"HTTPD_PREFIX/conf/httpd.conf" && apt-get purge -y --auto-remove $buildDepsCOPY httpd-foreground /usr/local/bin/EXPOSE 80CMD ["httpd-foreground"

Dockerfile文件中 COPY httpd-foreground /usr/local/bin/ 是将当前目录下的httpd-foreground拷贝到镜像里，作为httpd服务的启动脚本，所以我们要在本地创建一个脚本文件httpd-foreground

!/bin/bashset -e# Apache gets grumpy about PID files pre-existingrm -f /usr/local/apache2/logs/httpd.pidexec httpd -DFOREGROUND

赋予httpd-foreground文件可执行权限
runoob@runoob:~/apache$ chmod +x httpd-foreground

通过Dockerfile创建一个镜像，替换成你自己的名字
runoob@runoob:~/apache$ docker build -t httpd .

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
runoob@runoob:~/apache$ docker images httpdREPOSITORY TAG IMAGE ID CREATED SIZEhttpd latest da1536b4ef14 23 seconds ago 195.1 MB