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  • [Docker]Dockerfile定制容器

    需要部署的网页

    cat > /usr/local/docker/myshop/index.jsp <<'EOF'
    Hello World !
    EOF
    

    创建容器配置文件

    mkdir -p /usr/local/docker/myshop
    cat > /usr/local/docker/myshop/Dockerfile <<'EOF'
    FROM tomcat:latest
    # 创建文件夹
    RUN mkdir /usr/local/tomcat/webapps/ROOT
    # 复制文件
    COPY index.jsp /usr/local/tomcat/webapps/ROOT
    EOF
    

    创建容器

    [root@Proxy myshop]# docker build -t myshop .
    Sending build context to Docker daemon  3.072kB
    Step 1/3 : FROM tomcat:latest
     ---> 31a47677561a
    Step 2/3 : RUN mkdir /usr/local/tomcat/webapps/ROOT
     ---> Running in 78de34ca9ae8
    Removing intermediate container 78de34ca9ae8
     ---> 7fdc8ab7508e
    Step 3/3 : COPY index.jsp /usr/local/tomcat/webapps/ROOT
     ---> 5eba0cd03308
    Successfully built 5eba0cd03308
    Successfully tagged myshop:latest
    

    查看镜像

    [root@Proxy myshop]# docker images
    REPOSITORY                      TAG                 IMAGE ID            CREATED             SIZE
    myshop                          latest              2b6a97a4c5be        56 seconds ago      529MB
    

    运行自定义的容器

    [root@Proxy myshop]# docker run -p 8080:8080 -d myshop
    42111bdab34e172a777fde5d310ed5f251c09bff46c400fbf3f5b929d2321f1c
    

    Dockerfile上下文

    在当前目录下打包给docker进程,需要将所有待打包文件放置在此路径下

    [root@Proxy myshop]# tree
    .
    ├── Dockerfile
    └── pages
        └── index.jsp
    
    1 directory, 2 files
    

    修改配置文件

    [root@Proxy myshop]# cat > /usr/local/docker/myshop/Dockerfile <<'EOF'
    FROM tomcat:latest
    # 创建文件夹
    RUN mkdir /usr/local/tomcat/webapps/ROOT
    # 复制文件
    COPY pages/index.jsp /usr/local/tomcat/webapps/ROOT
    EOF
    

    重新构建容器

    [root@Proxy myshop]# docker build -t myshop .
    Sending build context to Docker daemon  3.584kB
    Step 1/3 : FROM tomcat:latest
     ---> 31a47677561a
    Step 2/3 : RUN mkdir /usr/local/tomcat/webapps/ROOT
     ---> Using cache
     ---> 6acd843144d1
    Step 3/3 : COPY pages/index.jsp /usr/local/tomcat/webapps/ROOT
     ---> 790739f2e70f
    Successfully built 790739f2e70f
    Successfully tagged myshop:latest
    

    END

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  • 原文地址:https://www.cnblogs.com/leoshi/p/12740014.html
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