9- Dockerfile制作tomcat镜像

2024-08-28

9- Dockerfile制作tomcat镜像

1. 准备tomcat压缩包，jdk压缩包

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wget https://download.java.net/java/GA/jdk22.0.2/c9ecb94cd31b495da20a27d4581645e8/9/GPL/openjdk-22.0.2_linux-x64_bin.tar.gz
wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.93/bin/apache-tomcat-9.0.93.tar.gz

2. 编写dockerfile

1 2	touch Dockerfile vim Dockerfile

写入：

FROM centos:7
MAINTAINER admin<123456@qq.com>

# 将当前目录的readme.txt复制到镜像中
COPY readme.txt /usr/local/readme.txt

# 使用ADD会自动解压
ADD openjdk-22.0.2_linux-x64_bin.tar.gz /usr/local/
ADD apache-tomcat-9.0.93.tar.gz /usr/local

# 禁用默认的 CentOS 源，并替换为阿里云源
RUN sed -i 's|^mirrorlist=|#mirrorlist=|g' /etc/yum.repos.d/CentOS-Base.repo && \
    sed -i 's|^#baseurl=http://mirror.centos.org|baseurl=http://mirrors.aliyun.com|g' /etc/yum.repos.d/CentOS-Base.repo && \
    yum clean all && \
    yum makecache fast
RUN yum -y install vim

# 配置jdk，apache等环境变量
ENV MYPATH /usr/local
WORKDIR $MYPATH

#如果你用的jdk版本较新，需要注意classpath环境变量
ENV JAVA_HOME /usr/local/jdk-22.0.2
ENV CLASSPATH $JAVA_HOME/lib
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.93
ENV CATALINA_BASH /usr/local/apache-tomcat-9.0.93
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin

EXPOSE 8080

# tail 实时追踪文件的变化
# 需要注意路径问题，是logs不是bin/logs
CMD /usr/local/apache-tomcat-9.0.93/bin/startup.sh && tail -F /usr/local/apache-tomcat-9.0.93/logs/catalina.out

将其命名为Dockerfile的好处就是构建的时候会自动寻找这个文件，不用使用-f选项了

mkdir -p tomcat_volumes/test tomcat_volumes/logs
docker build -t mytomcat .
docker run -d -p 3355:8080 --name mytomcat01 -v /home/ke/test/tomcat_volumes/test:/usr/local/apache-tomcat-9.0.93/webapps/test -v /home/ke/test/tomcat_volumes/logs:/usr/local/apache-tomcat-9.0.93/logs mytomcat
curl localhost:3355

浏览器输入：ip:3355即可查看tomcat主页。

创建主页：

1	vim tomcat_volumes/test/index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>hello world</title>
    </head>
    <body>
        Hello World!<br/>
        <%
        	System.out.println("-------my test web logs------");
        %>
    </body>
</html>

访问：ip:3355/test