Docker系列(四)-------------使用Dockerfile安装JDK8
一、简介本文主要介绍docker如何安装jdk8并配置环境变量;本文采用dockerfile方式安装二、安装步骤2.1 下载jdk并上传服务器先去oracle官网【https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html】下载jdk安装包;上传到服务器,此处我是上传...
·
一、简介
- 本文主要介绍docker如何安装jdk8并配置环境变量;
- 本文采用dockerfile方式安装
二、安装步骤
2.1 下载jdk并上传服务器
- 先去oracle官网【https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html】下载jdk安装包;
- 上传到服务器,此处我是上传到/usr/local/env/jdk8
[root@yuanshushu local]# mkdir /usr/local/env
[root@yuanshushu local]# cd /usr/local/env/
[root@yuanshushu env]# mkdir jdk8
- 上传服务器,如下
2.2 创建Dockerfile文件
- 在jdk8目录下创建Dockerfile文件
[root@yuanshushu jdk8]# cd jdk8
[root@yuanshushu jdk8]# touch Dockerfile
- 修改内容
# 基础镜像为 centos
FROM centos
# 维护者
MAINTAINER qjwyss
# 添加jdk8压缩包至 /usr/local 目录,压缩包会自动解压,解压后目录名称为jdk1.8.0_231
ADD jdk-8u231-linux-x64.tar.gz /usr/local/env/jdk8/
# 配置JAVA_HOME环境变量
ENV JAVA_HOME /usr/local/env/jdk8/jdk1.8.0_231/
# 将JAVA_HOME/bin 添加至PATH环境变量
ENV PATH $JAVA_HOME/bin:$PATH
- 根据Dockerfile文件构建镜像, 注意: .表明在当前目录,当前目录必须有Dockerfile文件和jdk-8u231-linux-x64.tar.gz文件
[root@yuanshushu jdk8]# docker build -t jdk8:v1.0 .
Sending build context to Docker daemon 194.2MB
Step 1/5 : FROM centos
latest: Pulling from library/centos
729ec3a6ada3: Pull complete
Digest: sha256:f94c1d992c193b3dc09e297ffd54d8a4f1dc946c37cbeceb26d35ce1647f88d9
Status: Downloaded newer image for centos:latest
---> 0f3e07c0138f
Step 2/5 : MAINTAINER qjwyss
---> Running in bc5ec1edbf48
Removing intermediate container bc5ec1edbf48
---> 9f98b79260d5
Step 3/5 : ADD jdk-8u231-linux-x64.tar.gz /usr/local/env/jdk8/
---> de825756552c
Step 4/5 : ENV JAVA_HOME /usr/local/env/jdk8/jdk1.8.0_231/
---> Running in b149975d72da
Removing intermediate container b149975d72da
---> 92d10c79e192
Step 5/5 : ENV PATH $JAVA_HOME/bin:$PATH
---> Running in 099bccbd52b2
Removing intermediate container 099bccbd52b2
---> 4bbcc92dfa54
Successfully built 4bbcc92dfa54
Successfully tagged jdk8:v1.0
- 查看镜像
[root@yuanshushu jdk8]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
jdk8 v1.0 4bbcc92dfa54 22 seconds ago 622MB
centos latest 0f3e07c0138f 5 weeks ago 220MB
- 后台运行镜像
[root@yuanshushu jdk8]# docker run -itd --name jdk8 jdk8:v1.0
da7084eaf0e79bc2336980e5ebeecb912dcac3f83b5fbce9fdcb449664d32d8a
- 查看容器状态
[root@yuanshushu jdk8]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
da7084eaf0e7 jdk8:v1.0 "/bin/bash" About a minute ago Up About a minute jdk8
- 进入容器,并查看jdk版本信息
[root@yuanshushu jdk8]# docker attach da7084eaf0e7
[root@da7084eaf0e7 /]# java -version
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)
[root@da7084eaf0e7 /]#
- 退出容器
[root@da7084eaf0e7 /]# exit
exit
[root@yuanshushu jdk8]
更多推荐
已为社区贡献2条内容
所有评论(0)