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Docker 入门实战
1. Docker 架构
2. Docker 安装
2.1 Ubuntu Docker 安装
2.2 CentOS Docker 安装
2.3 Windows Docker 安装
3. Docker使用
3.1 Docker Hello World
3.2 Docker 容器使用
3.3 Docker 镜像使用
3.4 Docker 容器连接
4. Docker实例
4.1 Docker 安装 Nginx
4.2 Docker 安装 PHP
4.3 Docker 安装 MySQL
4.4 Docker 安装 Tomcat
4.5 Docker 安装 Python
4.6 Docker 安装 Redis
4.7 Docker 安装 MongoDB
4.8 Docker 安装 Apache
5. Docker参考手册
5.1 Docker 常用命令
 
 

Docker 安装 Tomcat
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Docker 安装 MySQL

方法一、通过 Dockerfile构建

创建Dockerfile

首先,创建目录mysql,用于存放后面的相关东西。

w3cschool@w3cschool:~$ mkdir -p ~/tomcat

/webapps ~/tomcat/logs ~/tomcat/conf

data目录将映射为mysql容器配置的数据文件存放路径

logs目录将映射为mysql容器的日志目录

conf目录里的配置文件将映射为mysql容器的配置文件

进入创建的mysql目录,创建Dockerfile

FROM java:8-jre

ENV CATALINA_HOME /usr/local/tomcat
ENV PATH $CATALINA_HOME/bin:$PATH
RUN mkdir -p "$CATALINA_HOME"
WORKDIR $CATALINA_HOME

# runtime dependencies for Tomcat Native Libraries
# Tomcat Native 1.2+ requires a newer version

of OpenSSL than debian:jessie has available (1.0.2g+)
# see http://tomcat.10.x6.nabble.com/VOTE-Release

-Apache-Tomcat-8-0-32-tp5046007p5046024.html (and following discussion)
ENV OPENSSL_VERSION 1.0.2h-1
RUN { \
echo 'deb http://httpredir.debian.org/debian

unstable main'; \
} > /etc/apt/sources.list.d/unstable.list \
&& { \
# add a negative "Pin-Priority" so that we never

ever get packages from unstable unless we explicitly

request them
echo 'Package: *'; \
echo 'Pin: release a=unstable'; \
echo 'Pin-Priority: -10'; \
echo; \
# except OpenSSL, which is the reason we're here
echo 'Package: openssl libssl*'; \
echo "Pin: version $OPENSSL_VERSION"; \
echo 'Pin-Priority: 990'; \
} > /etc/apt/preferences.d/unstable-openssl
RUN apt-get update && apt-get install -y --no

-install-recommends \
libapr1 \
openssl="$OPENSSL_VERSION" \
&& rm -rf /var/lib/apt/lists/*

# see https://www.apache.org/dist/tomcat/tomcat-8/KEYS
RUN set -ex \
&& for key in \
05AB33110949707C93A279E3D3EFE6B686867BA6 \
07E48665A34DCAFAE522E5E6266191C37C037D42 \
47309207D818FFD8DCD3F83F1931D684307A10A5 \
541FBE7D8F78B25E055DDEE13C370389288584E7 \
61B832AC2F1C5A90F0F9B00A1C506407564C17A3 \
79F7026C690BAA50B92CD8B66A3AD3F4F22C4FED \
9BA44C2621385CB966EBA586F72C284D731FABEE \
A27677289986DB50844682F8ACB77FC2E86E29AC \
A9C5DF4D22E99998D9875A5110C01C5A2F6059E7 \
DCFD35E0BF8CA7344752DE8B6FB21E8933C60243 \
F3A04C595DB5B6A5F1ECA43E3B7BBB100D811BBE \
F7DA48BB64BCB84ECBA7EE6935CD23C10D498E23 \
; do \
gpg --keyserver ha.pool.sks-keyservers.net

--recv-keys "$key"; \
done

ENV TOMCAT_MAJOR 8
ENV TOMCAT_VERSION 8.0.35
ENV TOMCAT_TGZ_URL https://www.apache.org/dist

/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin

/apache-tomcat-$TOMCAT_VERSION.tar.gz

RUN set -x \
\
&& curl -fSL "$TOMCAT_TGZ_URL" -o tomcat.tar.gz \
&& curl -fSL "$TOMCAT_TGZ_URL.asc" -o tomcat.tar.gz.asc \
&& gpg --batch --verify tomcat.tar.gz.asc tomcat.tar.gz \
&& tar -xvf tomcat.tar.gz --strip-components=1 \
&& rm bin/*.bat \
&& rm tomcat.tar.gz* \
\
&& nativeBuildDir="$(mktemp -d)" \
&& tar -xvf bin/tomcat-native.tar.gz -C "$nativeBuildDir"

--strip-components=1 \
&& nativeBuildDeps=" \
gcc \
libapr1-dev \
libssl-dev \
make \
openjdk-${JAVA_VERSION%%[-~bu]*}-jdk=$JAVA_DEBIAN_VERSION \
" \
&& apt-get update && apt-get install -y --no-install

-recommends $nativeBuildDeps && rm -rf /

var/lib/apt/lists/* \
&& ( \
export CATALINA_HOME="$PWD" \
&& cd "$nativeBuildDir/native" \
&& ./configure \
--libdir=/usr/lib/jni \
--prefix="$CATALINA_HOME" \
--with-apr=/usr/bin/apr-1-config \
--with-java-home="$(docker-java-home)" \
--with-ssl=yes \
&& make -j$(nproc) \
&& make install \
) \
&& apt-get purge -y --auto-remove $nativeBuildDeps \
&& rm -rf "$nativeBuildDir" \
&& rm bin/tomcat-native.tar.gz

# verify Tomcat Native is working properly
RUN set -e \
&& nativeLines="$(catalina.sh configtest 2>&1)" \
&& nativeLines="$(echo "$nativeLines" | grep 'Apache

Tomcat Native')" \
&& nativeLines="$(echo "$nativeLines" | sort -u)" \
&& if ! echo "$nativeLines" | grep 'INFO: Loaded APR

based Apache Tomcat Native library' >&2; then \
echo >&2 "$nativeLines"; \
exit 1; \
fi

EXPOSE 8080
CMD ["catalina.sh", "run"]

通过Dockerfile创建一个镜像,替换成你自己的名字

w3cschool@w3cschool:~/tomcat$ docker build -t tomcat .

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

w3cschool@w3cschool:~/tomcat$ docker images|grep tomcat
tomcat latest 70f819d3d2d9 7 days ago 335.8 MB

方法二、docker pull mysql

查找Docker Hub上的mysql镜像

w3cschool@w3cschool:~/tomcat$ docker search tomcat
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
tomcat Apache Tomcat is an open source implementa

... 744 [OK]
dordoka/tomcat Ubuntu 14.04, Oracle JDK 8 and Tomcat

8 ba... 19 [OK]
consol/tomcat-7.0 Tomcat 7.0.57, 8080, "admin/admin"

16 [OK]
consol/tomcat-8.0 Tomcat 8.0.15, 8080, "admin/admin"

14 [OK]
cloudesire/tomcat Tomcat server, 6/7/8 8 [OK]
davidcaste/alpine-tomcat Apache Tomcat 7/8 using

Oracle Java 7/8 wi... 6 [OK]
andreptb/tomcat Debian Jessie based image with Apache

Tomc... 4 [OK]
kieker/tomcat 2 [OK]
fbrx/tomcat Minimal Tomcat image based on Alpine Linux

2 [OK]
jtech/tomcat Latest Tomcat production distribution on l

... 1 [OK]

这里我们拉取官方的镜像,标签为5.6

w3cschool@w3cschool:~/tomcat$ docker pull tomcat

等待下载完成后,我们就可以在本地镜像列表里查到REPOSITORY为mysql,标签为5.6的镜像。

使用mysql镜像

运行容器

w3cschool@w3cschool:~/tomcat$ docker run

--name tomcat -p 8080:8080 -v $PWD/test:/usr/local/tomcat/webapps/test -d tomcat
acb33fcb4beb8d7f1ebace6f50f5fc204b1dbe9d5248

81267aa715c61cf75320
w3cschool@w3cschool:~/tomcat$

命令说明:

1.-p 3306:3306:将容器的3306端口映射到主机的3306端口

2.-v $PWD/conf/my.cnf:/etc/mysql/my.cnf:将主机当前目录下的conf/my.cnf挂载到容器的/etc/mysql/my.cnf

3.-v $PWD/logs:/logs:将主机当前目录下的logs目录挂载到容器的/logs

4.-v $PWD/data:/mysql_data:将主机当前目录下的data目录挂载到容器的/mysql_data

5.-e MYSQL_ROOT_PASSWORD=123456:初始化root用户的密码

查看容器启动情况

w3cschool@w3cschool:~/tomcat$ docker ps
CONTAINER ID IMAGE COMMAND ... PORTS NAMES
acb33fcb4beb tomcat "catalina.sh run" ...

0.0.0.0:8080->8080/tcp tomcat

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