Docker篇-Centos7 docker構建基礎鏡像（centos+jdk1.8+maven3+git）

1目標鏡像環境

centos7
jdk1.8
maven3
git

2 構建流程

2.1 準備jdk1.8和maven3.6.3

#1）下載
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
http://mirror-hk.koddos.net/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz
#2）解壓到指定目錄
mkdir /opt/image && cd /opt/image
tar xvfz jdk-8u221-linux-x64.tar.gz -C /opt/image
tar xvfz apache-maven-3.6.3-bin.tar.gz -C /opt/image

2.2 準備Dockerfile

cd /opt/image
vim Dockerfile
內容如下：

FROM centos
MAINTAINER guici

# 執行命令：創建目錄
RUN mkdir -p /opt/tools/jdk/
RUN mkdir -p /opt/tools/maven/

# 安裝git（待優化）
RUN yum -y install git

# 將jdk1.8.0_221添加到鏡像centos的/opt/tools/jdk/jdk_1.8/目錄下
COPY jdk1.8.0_221/ /opt/tools/jdk/jdk_1.8/

# 將apache-maven-3.6.3添加到鏡像centos的/opt/tools/maven/maven_3.6.3/目錄下
COPY apache-maven-3.6.3/ /opt/tools/maven/maven_3.6.3/

# 添加環境變量
ENV JAVA_HOME /opt/tools/jdk/jdk_1.8
ENV MAVEN_HOME /opt/tools/maven/maven_3.6.3
ENV PATH $PATH:$JAVA_HOME/bin:$MAVEN_HOME/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

2.3 構建鏡像

docker build -t base:v1.0-git-mvn363-jdk180221 .

#檢查一下
docker run -it base:v1.0-git-mvn363-jdk180221 /bin/bash