1. ----------------------------
    2. # 编写DockerFile
    3. ----------------------------
    4. $ cd dockerfile/
    5. $ ls
    6. $ vim demo
    7. $ cat demo
    8. FROM centos
    9. MAINTAINER jack<517380692@qq.com>
    10. ENV MYPATH /usr/local
    11. WORKDIR $MYPATH
    12. RUN yum -y install vim
    13. RUN yum -y install net-tools
    14. EXPOSE 80
    15. CMD echo $MYPATH
    16. CMD echo "----------"
    17. CMD /bin/bash
    19. ----------------------------
    20. # 由DockerFile构建镜像
    21. ----------------------------
    22. $ docker build -f demo -t mycentos:1.0 .        #一定要加最后的".",这是个路径
    23. # docker build [-f 自定义的DockerFile] [-t 自定义镜像名:版本号] .
    24. #简略输出内容,由输出内容可以发现整个镜像的生成是按顺序执行堆叠的
    25. Step 1/10 : FROM centos
    26. ...
    27. Step 2/10 : MAINTAINER jack<517380692@qq.com>
    28. ...
    29. Step 3/10 : ENV MYPATH /usr/local
    30. ...
    31. Step 4/10 : WORKDIR $MYPATH
    32. ...
    33. Step 5/10 : RUN yum -y install vim
    34. ...
    35. Step 6/10 : RUN yum -y install net-tools
    36. ...
    37. Step 7/10 : EXPOSE 80
    38. ...
    39. Step 8/10 : CMD echo $MYPATH
    40. ...
    41. Step 9/10 : CMD echo "----------"
    42. ...
    43. Step 10/10 : CMD /bin/bash
    44. ...
    45. Successfully built 620f5b31cbca
    46. Successfully tagged mycentos:1.0
    49. $ docker history 620f5b31cbca    #查看镜像构建过程
    50. IMAGE               CREATED             CREATED BY                                      SIZE                COMMENT
    51. 620f5b31cbca        44 minutes ago      /bin/sh -c #(nop)  CMD ["/bin/sh" "-c" "/bin…   0B                  
    52. dd424f3afe09        44 minutes ago      /bin/sh -c #(nop)  CMD ["/bin/sh" "-c" "echo…   0B                  
    53. 355186aafd54        44 minutes ago      /bin/sh -c #(nop)  CMD ["/bin/sh" "-c" "echo…   0B                  
    54. 451dd8c736f3        44 minutes ago      /bin/sh -c #(nop)  EXPOSE 80                    0B                  
    55. 9a753ad71967        44 minutes ago      /bin/sh -c yum -y install net-tools             21.8MB              
    56. 4eaf416dbe04        44 minutes ago      /bin/sh -c yum -y install vim                   54.7MB              
    57. 2ef2ea009dc7        44 minutes ago      /bin/sh -c #(nop) WORKDIR /usr/local            0B                  
    58. 718902cc6ff6        44 minutes ago      /bin/sh -c #(nop)  ENV MYPATH=/usr/local        0B                  
    59. 8664dfdb5bec        44 minutes ago      /bin/sh -c #(nop)  MAINTAINER jack<517380692…   0B                  
    60. 9d5bccb1776b        3 months ago        /bin/sh -c #(nop)  CMD ["/bin/bash"]            0B                  
    61. <missing>           3 months ago        /bin/sh -c #(nop)  LABEL org.label-schema.sc…   0B                  
    62. <missing>           3 months ago        /bin/sh -c #(nop) ADD file:9aef459f0ff88a770…   255MB    
    63. ----------------------------
    64. # 测试,创建并运行容器
    65. ----------------------------
    66. $ docker images
    67. REPOSITORY            TAG                 IMAGE ID            CREATED             SIZE
    68. mycentos              1.0                 620f5b31cbca        7 minutes ago       332MB
    69. $ docker run -it 620f5b31cbca