Docker<二>Dockerfile使用及jdk1.8环境搭建

Dockerfile常用命令

Dockerfile 构建JDK1.8镜像

1. 从oracle官网下载jdk-8u172-linux-x64.tar.gz，并上传到服务器/usr/local/dockerjdk8/目录下 (没有就新建目录）
2. 创建Dockerfile文件，并编辑

[root@iz2zegpdc9x4o0ir42a2upz local]# cd dockerjdk8/
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# ls
jdk-8u172-linux-x64.tar.gz
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# vi Dockerfile
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# cat Dockerfile 
FROM centos:7
MAINTAINER hehongqian
WORKDIR /usr
RUN mkdir /usr/local/java
ADD jdk-8u172-linux-x64.tar.gz /usr/local/java
ENV JAVA_HOME /usr/local/java/jdk1.8.0_172
ENV JRE_HOME $JAVA_HOME/jre
ENV CLASSPATH $JAVA_HOME/bin/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
ENV PATH $JAVA_HOME/bin:$PATH
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# docker build -t='jdk1.8' .
Sending build context to Docker daemon  190.9MB
Step 1/9 : FROM centos:7
 ---> 9f38484d220f
Step 2/9 : MAINTAINER hehongqian
 ---> Running in 4e9d40b0f597
Removing intermediate container 4e9d40b0f597
 ---> abe1aa91adbe
Step 3/9 : WORKDIR /usr
 ---> Running in 1bd2a9717955
Removing intermediate container 1bd2a9717955
 ---> 99193dc1ff55
Step 4/9 : RUN mkdir /usr/local/java
 ---> Running in 2482d41e8b58
Removing intermediate container 2482d41e8b58
 ---> b6d1b9ae778c
Step 5/9 : ADD jdk-8u172-linux-x64.tar.gz /usr/local/java
 ---> ba70d89de032
Step 6/9 : ENV JAVA_HOME /usr/local/java/jdk1.8.0_172
 ---> Running in 84e05c4694e8
Removing intermediate container 84e05c4694e8
 ---> 971d9c02287c
Step 7/9 : ENV JRE_HOME $JAVA_HOME/jre
 ---> Running in ba81ce7f19b2
Removing intermediate container ba81ce7f19b2
 ---> ef94124823b6
Step 8/9 : ENV CLASSPATH $JAVA_HOME/bin/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
 ---> Running in 4a7b9d4bd414
Removing intermediate container 4a7b9d4bd414
 ---> f65d2a2f678c
Step 9/9 : ENV PATH $JAVA_HOME/bin:$PATH
 ---> Running in 1d33f891be87
Removing intermediate container 1d33f891be87
 ---> b5984b02f4fb
Successfully built b5984b02f4fb
Successfully tagged jdk1.8:latest
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE
jdk1.8                    latest              b5984b02f4fb        3 minutes ago       589MB
redis                     latest              f7302e4ab3a8        36 hours ago        98.2MB
nginx                     latest              4733136e5c3c        43 hours ago        126MB
tomcat                    7-jre7              47c156f4d4e3        3 months ago        359MB
centos/mysql-57-centos7   latest              e35b3f7a4ea0        4 months ago        452MB
centos                    7                   9f38484d220f        5 months ago        202MB
[root@iz2zegpdc9x4o0ir42a2upz dockerjdk8]# 

可以看到jdk1.8的镜像已经成功创建了