Docker 实战五（使用Docker构建tomcat9）

喜欢ヅ旅行 2022-03-30 07:10 339阅读 0赞

## 使用Dockerfile构建tomcat9 ##

首先新建一个Dockerfile，步骤如下（尽可能多的运用dockerfile的命令）

1.  选取基础镜像层，我这里选了centos
2.  联系人
3.  复制文件
4.  安装tomcat
5.  安装jdk
6.  安装vim
7.  设置环境变量
8.  设置工作目录
9.  设置JAVA\_HOME和tomcat的环境变量，并生效
10. 挂载目录
11. 暴露8080端口
12. 启动tomcat并打印日志

FROM centos
    MAINTAINER chen<xiekc0930@163.com>
    
    COPY test.txt /usr/local/testincontainer.txt
    
    ADD apache-tomcat-9.0.14.tar.gz /usr/local
    ADD jdk-8u191-linux-x64.tar.gz /usr/local
    RUN yum -y install vim
    
    ENV MYPATH /usr/local
    
    WORKDIR $MYPATH
    
    ENV JAVA_HOME /usr/local/jdk1.8.0_191
    ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
    ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.14
    ENV CATALINA_BASE /usr/local/apache-tomcat-9.0.14
    ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin
    
    VOLUME /home
    
    EXPOSE 8080
    
    CMD /usr/local/apache-tomcat-9.0.14/bin/startup.sh && tail -F /usr/local/apache-tomcat-9.0.14/logs/catalina.out

**通过build命令打包镜像**

docker build -f /opt/mydockerfile/Dockerfile -t mytomcat9 .

**通过run命令启动命令，并映射端口9080**

docker run -d -p 9080:8080 --name mytomcat9 \
    -v /home/tomcat9/test:/usr/local/apache-tomcat-9.0.14/webaps/test \
    -v /home/tomcat9/tomcatlogs/:/usr/local/apache-tomcat-9.0.14/logs \
    --privileged=true mytomcat9

**查看镜像是否创建**

[root@localhost tomcatlogs]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
    mytomcat9           latest              f1dcd9583a9c        40 minutes ago      613MB

**查看容器是否已经启动**

[root@localhost tomcatlogs]# docker ps 
    CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                    NAMES
    2afa0fb58257        mytomcat9           "/bin/sh -c '/usr/lo…"   About a minute ago   Up About a minute   0.0.0.0:9080->8080/tcp   mytomcat9

**访问端口9080**

[root@localhost tomcatlogs]# curl localhost:9080
    <!DOCTYPE html>
    <html lang="en">
        <head>
            <meta charset="UTF-8" />
            <title>Apache Tomcat/9.0.14</title>
            <link href="favicon.ico" rel="icon" type="image/x-icon" />
            <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />
            <link href="tomcat.css" rel="stylesheet" type="text/css" />
        </head>
    
        <body>

**查看日志是否持久化在宿主机**

[root@localhost tomcatlogs]# cd /home/tomcat9/
    [root@localhost tomcat9]# ll
    total 4
    drwxr-xr-x 2 root root    6 1月   5 02:56 test
    drwxr-xr-x 2 root root 4096 1月   5 02:56 tomcatlogs
    [root@localhost tomcat9]# cd tomcatlogs/
    [root@localhost tomcatlogs]# ll
    total 40
    -rw-r----- 1 root root 12386 1月   5 03:05 catalina.2019-01-05.log
    -rw-r----- 1 root root 12386 1月   5 03:05 catalina.out
    -rw-r----- 1 root root     0 1月   5 02:56 host-manager.2019-01-05.log
    -rw-r----- 1 root root   816 1月   5 03:05 localhost.2019-01-05.log
    -rw-r----- 1 root root  1562 1月   5 03:36 localhost_access_log.2019-01-05.txt
    -rw-r----- 1 root root     0 1月   5 02:56 manager.2019-01-05.log

成功！

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*docker 实战结束，多多练习，孰能生巧，加油！*