一、在Centos7宿主機上啓用ip轉發功能html
# Avoid WARNING: IPv4 forwarding is disabled. Networking will not work. echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf systemctl restart network
二、編寫DockerFile文件:vim Dockerfilejava
# 查詢centos鏡像版本:https://hub.docker.com/ FROM centos:7 # author<email> MAINTAINER auth<auth@163.com> ENV MYPATH /usr/local WORKDIR $MYPATH RUN yum -y install vim RUN yum -y install net-tools # 暴露端口 EXPOSE 80 CMD echo $MYPATH CMD /bin/bash
三、構建mycentos鏡像(不要忘記最後的.)linux
docker build -f Dockerfile -t mycentos:1.0 .
四、經過mycentos鏡像生成容器,而且更改容器的yum源docker
# 建立並運行容器 docker run -it --name mycentos01 mycentos:1.0 # yum repo (163) mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo yum clean all && yum makecache # ping test ping www.baidu.com
一、下載JDK到宿主機工做目錄(如jdk-8u281-linux-x64.tar.gz)shell
在linux中安裝jdk的教程(若不須要在宿主機上安裝jdk,能夠跳過)vim
Java官方文檔:https://docs.oracle.com/javase/8/docs/technotes/guides/install/install_overview.htmlcentos
Change directory to the location where you would like the JDK to be installed, then move the .tar.gz archive file to the current directory.bash
Unpack the archive file and install the JDK. ( tar zxvf jdk-8uversion-linux-x64.tar.gz )oracle
tar zxvf jdk-8u281-linux-x64.tar.gz
curl
The JDK files are installed in a directory called jdk1.8.0_version in the current directory.
jdk1.8.0_281
Delete the .tar.gz file if you want to save disk space.
二、編寫DockerFile文件:vim Dockerfile1
FROM centos:7 MAINTAINER auth<auth@163.com> ENV MYPATH /usr/local WORKDIR $MYPATH RUN yum -y install vim RUN yum -y install net-tools # COPY:將宿主機中指定的文件複製到docker容器中指定的路徑 ADD:複製(如果壓縮文件會先解壓) ADD jdk-8u281-linux-x64.tar.gz /usr/local ENV JAVA_HOME /usr/local/jdk1.8.0_281 ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar ENV PATH $PATH:$JAVA_HOME/bin EXPOSE 80 CMD echo $MYPATH CMD /bin/bash
三、構建 jdk+centos7 鏡像(不要忘記最後的.)
docker build -f Dockerfile1 -t mycentos:2.0 .