Docker 安裝Apache

方法一、通過Dockerfile構建

創建Dockerfile

首先，創建目錄apache,用於存放後面的相關東西。

w3big@w3big:~$ mkdir -p  ~/apache/www ~/apache/logs ~/apache/conf 

www目錄將映射為apache容器配置的應用程序目錄

logs目錄將映射為apache容器的日誌目錄

conf目錄裡的配置文件將映射為apache容器的配置文件

進入創建的apache目錄，創建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-data

ENV HTTPD_PREFIX /usr/local/apache2
ENV PATH $PATH:$HTTPD_PREFIX/bin
RUN mkdir -p "$HTTPD_PREFIX" \
	&& chown www-data:www-data "$HTTPD_PREFIX"
WORKDIR $HTTPD_PREFIX

# install httpd runtime dependencies
# https://httpd.apache.org/docs/2.4/install.html#requirements
RUN apt-get update \
	&& apt-get install -y --no-install-recommends \
		libapr1 \
		libaprutil1 \
		libaprutil1-ldap \
		libapr1-dev \
		libaprutil1-dev \
		libpcre++0 \
		libssl1.0.0 \
	&& rm -r /var/lib/apt/lists/*

ENV HTTPD_VERSION 2.4.20
ENV HTTPD_BZ2_URL https://www.apache.org/dist/httpd/httpd-$HTTPD_VERSION.tar.bz2

RUN buildDeps=' \
		ca-certificates \
		curl \
		bzip2 \
		gcc \
		libpcre++-dev \
		libssl-dev \
		make \
	' \
	set -x \
	&& apt-get update \
	&& apt-get install -y --no-install-recommends $buildDeps \
	&& rm -r /var/lib/apt/lists/* \
	\
	&& curl -fSL "$HTTPD_BZ2_URL" -o httpd.tar.bz2 \
	&& curl -fSL "$HTTPD_BZ2_URL.asc" -o httpd.tar.bz2.asc \
# see https://httpd.apache.org/download.cgi#verify
	&& export GNUPGHOME="$(mktemp -d)" \
	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys A93D62ECC3C8EA12DB220EC934EA76E6791485A8 \
	&& gpg --batch --verify httpd.tar.bz2.asc httpd.tar.bz2 \
	&& rm -r "$GNUPGHOME" httpd.tar.bz2.asc \
	\
	&& mkdir -p src \
	&& tar -xvf httpd.tar.bz2 -C src --strip-components=1 \
	&& rm httpd.tar.bz2 \
	&& cd src \
	\
	&& ./configure \
		--prefix="$HTTPD_PREFIX" \
		--enable-mods-shared=reallyall \
	&& make -j"$(nproc)" \
	&& make install \
	\
	&& cd .. \
	&& rm -r src \
	\
	&& sed -ri \
		-e 's!^(\s*CustomLog)\s+\S+!\1 /proc/self/fd/1!g' \
		-e 's!^(\s*ErrorLog)\s+\S+!\1 /proc/self/fd/2!g' \
		"$HTTPD_PREFIX/conf/httpd.conf" \
	\
	&& apt-get purge -y --auto-remove $buildDeps

COPY httpd-foreground /usr/local/bin/

EXPOSE 80
CMD ["httpd-foreground"]

Dockerfile文件中COPY httpd-foreground /usr/local/bin/ 是將當前目錄下的httpd-foreground拷貝到鏡像裡，作為httpd服務的啟動腳本，所以我們要在本地創建一個腳本文件httpd-foreground

#!/bin/bash
set -e

# Apache gets grumpy about PID files pre-existing
rm -f /usr/local/apache2/logs/httpd.pid

exec httpd -DFOREGROUND

賦予httpd-foreground文件可執行權限

w3big@w3big:~/apache$ chmod +x httpd-foreground

通過Dockerfile創建一個鏡像，替換成你自己的名字

w3big@w3big:~/apache$ docker build -t httpd .

創建完成後，我們可以在本地的鏡像列表裡查找到剛剛創建的鏡像

w3big@w3big:~/apache$ docker images httpd
REPOSITORY     TAG        IMAGE ID        CREATED           SIZE
httpd          latest     da1536b4ef14    23 seconds ago    195.1 MB

方法二、docker pull httpd

查找Docker Hub上的httpd鏡像

w3big@w3big:~/apache$ docker search httpd
NAME                           DESCRIPTION                  STARS  OFFICIAL AUTOMATED
httpd                          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]
...

這裡我們拉取官方的鏡像

w3big@w3big:~/apache$ docker pull httpd

等待下載完成後，我們就可以在本地鏡像列表裡查到REPOSITORY為httpd的鏡像。

使用apache鏡像

運行容器

docker run -p 80:80 -v $PWD/www/:/usr/local/apache2/htdocs/ -v $PWD/conf/httpd.conf:/usr/local/apache2/conf/httpd.conf -v $PWD/logs/:/usr/local/apache2/logs/ -d httpd

命令說明：

-p 80:80 :將容器的80端口映射到主機的80端口

-v $PWD/www/:/usr/local/apache2/htdocs/ :將主機中當前目錄下的www目錄掛載到容器的/usr/local/apache2/htdocs/

-v $PWD/conf/httpd.conf:/usr/local/apache2/conf/httpd.conf :將主機中當前目錄下的conf/httpd.conf文件掛載到容器的/usr/local/apache2/conf /httpd.conf

-v $PWD/logs/:/usr/local/apache2/logs/ :將主機中當前目錄下的logs目錄掛載到容器的/usr/local/apache2/logs/

查看容器啟動情況

w3big@w3big:~/apache$ docker ps
CONTAINER ID  IMAGE   COMMAND             ... PORTS               NAMES
79a97f2aac37  httpd   "httpd-foreground"  ... 0.0.0.0:80->80/tcp  sharp_swanson

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