3. 创建Dockerfile,构建运行环境
Dockerfile文件
# 指定基于的基础镜像
FROM Ubuntu:13.10
# 维护者信息
MAINTAINER zhangjiayang "zhangjiayang@sczq.com.cn"
# 镜像的指令操作
# 获取APT更新的资源列表
RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe"> /etc/apt/sources.list
# 更新软件
RUN apt-get update
# Install curl
RUN apt-get -y install curl
# Install JDK 7
RUN cd /tmp && curl -L 'http://download.Oracle.com/otn-pub/Java/jdk/7u65-b17/jdk-7u65-linux-x64.tar.gz' -H 'Cookie: oraclelicense=accept-securebackup-cookie; gpw_e24=Dockerfile' | tar -xz
RUN mkdir -p /usr/lib/jvm
RUN mv /tmp/jdk1.7.0_65/ /usr/lib/jvm/java-7-oracle/
# Set Oracle JDK 7 as default Java
RUN update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-oracle/bin/java 300
RUN update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-7-oracle/bin/javac 300
# 设置系统环境
ENV JAVA_HOME /usr/lib/jvm/java-7-oracle/
# Install tomcat7
RUN cd /tmp && curl -L 'http://archive.apache.org/dist/tomcat/tomcat-7/v7.0.8/bin/apache-tomcat-7.0.8.tar.gz' | tar -xz
RUN mv /tmp/apache-tomcat-7.0.8/ /opt/tomcat7/
ENV CATALINA_HOME /opt/tomcat7
ENV PATH $PATH:$CATALINA_HOME/bin
# 复件tomcat7.sh到容器中的目录
ADD tomcat7.sh /etc/init.d/tomcat7
RUN chmod 755 /etc/init.d/tomcat7
# Expose ports. 指定暴露的端口
EXPOSE 8080
# Define default command.
ENTRYPOINT service tomcat7 start && tail -f /opt/tomcat7/logs/catalina.out
tomcat7.sh命令文件
export JAVA_HOME=/usr/lib/jvm/java-7-oracle/
export TOMCAT_HOME=/opt/tomcat7
case $1 in
start)
sh $TOMCAT_HOME/bin/startup.sh
;;
stop)
sh $TOMCAT_HOME/bin/shutdown.sh
;;
restart)
sh $TOMCAT_HOME/bin/shutdown.sh
sh $TOMCAT_HOME/bin/startup.sh
;;
esac
exit 0
4. 构建镜像
根据配置完的dockerfile构建Docker镜像,并启动docker容器。
docker build -t wechat-tomcat.
docker run -d -p 8090:8080 wechat-tomcat
默认情况下,tomcat会占用8080端口,所以在启动container的时候,指定了 -p 8090:8080,映射到宿主机端口就是8090。