查看Docker镜像Dockefile-进城务工人员小梅

无法直接查看Docker镜像的Dockefile，但是可以利用 docker history命令：

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history --help

Usage:	docker history [OPTIONS] IMAGE

Show the history of an image

Options:
      --help       Print usage
  -H, --human      Print sizes and dates in human readable format (default true)
      --no-trunc   Don't truncate output
  -q, --quiet      Only show numeric IDs
[root@iZj6c9wo7lpk4csgnvjsbzZ ~]#

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history --help

Usage: docker history [OPTIONS] IMAGE

Show the history of an image

Options:

--help Print usage

-H, --human Print sizes and dates in human readable format (default true)

--no-trunc Don't truncate output

-q, --quiet Only show numeric IDs

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]#

例如：

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker ps -a
CONTAINER ID        IMAGE                                 COMMAND                  CREATED             STATUS                     PORTS                                   NAMES
d75bf414d31c        filesysorg/jfileserver                "/jfileserver/runs..."   3 minutes ago       Up 3 minutes               21/tcp, 139/tcp, 445/tcp, 137-138/udp   pensive_bell

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history filesysorg/jfileserver
IMAGE               CREATED             CREATED BY                                      SIZE                COMMENT
c53ea72b6bad        8 months ago        /bin/sh -c #(nop)  ENTRYPOINT ["/jfileserv...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_DEBUG_LOGPATH...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_DEBUG_OUTPUT=...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_NORMAL_PASSWO...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_NORMAL_USER=user   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_ADMIN_PASSWOR...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_ADMIN_USER=admin   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SHARE_COMMENT...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SHARE_NAME=jf...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_NFS_DEBUGFLAG...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_FTP_DEBUGFLAG...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_FTP_PORT=21        0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SMB_DEBUGFLAG...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SMB_DIALECTS=...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SMB_DOMAIN=do...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SMB_SERVERNAM...   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_NFS_ENABLE=false   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_FTP_ENABLE=false   0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  ENV JFSRV_SMB_ENABLE=true    0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  EXPOSE 21/tcp                0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  EXPOSE 137/udp               0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  EXPOSE 138/udp               0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  EXPOSE 139/tcp               0 B                 
<missing>           8 months ago        /bin/sh -c #(nop)  EXPOSE 445/tcp               0 B                 
<missing>           8 months ago        /bin/sh -c mkdir logs                           0 B                 
<missing>           8 months ago        /bin/sh -c chmod +x /jfileserver/runsrv.sh      163 B               
<missing>           8 months ago        /bin/sh -c #(nop) COPY dir:537276cdaeef9e9...   20.3 MB             
<missing>           2 years ago         /bin/sh -c #(nop) WORKDIR /jfileserver          0 B                 
<missing>           2 years ago         /bin/sh -c #(nop)  LABEL maintainer=gk.spe...   0 B                 
<missing>           2 years ago         /bin/sh -c #(nop)  LABEL description=Java ...   0 B                 
<missing>           2 years ago         /bin/sh -c /var/lib/dpkg/info/ca-certifica...   355 kB              
<missing>           2 years ago         /bin/sh -c set -ex;   if [ ! -d /usr/share...   348 MB              
<missing>           2 years ago         /bin/sh -c #(nop)  ENV CA_CERTIFICATES_JAV...   0 B                 
<missing>           2 years ago         /bin/sh -c #(nop)  ENV JAVA_DEBIAN_VERSION...   0 B                 
<missing>           2 years ago         /bin/sh -c #(nop)  ENV JAVA_VERSION=8u181       0 B                 
<missing>           2 years ago         /bin/sh -c #(nop)  ENV JAVA_HOME=/docker-j...   0 B                 
<missing>           2 years ago         /bin/sh -c ln -svT "/usr/lib/jvm/java-8-op...   33 B                
<missing>           2 years ago         /bin/sh -c {   echo '#!/bin/sh';   echo 's...   87 B                
<missing>           2 years ago         /bin/sh -c #(nop)  ENV LANG=C.UTF-8             0 B                 
<missing>           2 years ago         /bin/sh -c apt-get update && apt-get insta...   2.21 MB             
<missing>           2 years ago         /bin/sh -c apt-get update && apt-get insta...   142 MB              
<missing>           2 years ago         /bin/sh -c set -ex;  if ! command -v gpg >...   7.81 MB             
<missing>           2 years ago         /bin/sh -c apt-get update && apt-get insta...   23.2 MB             
<missing>           2 years ago         /bin/sh -c #(nop)  CMD ["bash"]                 0 B                 
<missing>           2 years ago         /bin/sh -c #(nop) ADD file:a61c14b18252183...   101 MB

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

d75bf414d31c filesysorg/jfileserver "/jfileserver/runs..." 3 minutes ago Up 3 minutes 21/tcp, 139/tcp, 445/tcp, 137-138/udp pensive_bell

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history filesysorg/jfileserver

IMAGE CREATED CREATED BY SIZE COMMENT

c53ea72b6bad 8 months ago /bin/sh -c #(nop) ENTRYPOINT ["/jfileserv... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_DEBUG_LOGPATH... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_DEBUG_OUTPUT=... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_NORMAL_PASSWO... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_NORMAL_USER=user 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_ADMIN_PASSWOR... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_ADMIN_USER=admin 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SHARE_COMMENT... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SHARE_NAME=jf... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_NFS_DEBUGFLAG... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_FTP_DEBUGFLAG... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_FTP_PORT=21 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SMB_DEBUGFLAG... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SMB_DIALECTS=... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SMB_DOMAIN=do... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SMB_SERVERNAM... 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_NFS_ENABLE=false 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_FTP_ENABLE=false 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_SMB_ENABLE=true 0 B

<missing> 8 months ago /bin/sh -c #(nop) EXPOSE 21/tcp 0 B

<missing> 8 months ago /bin/sh -c #(nop) EXPOSE 137/udp 0 B

<missing> 8 months ago /bin/sh -c #(nop) EXPOSE 138/udp 0 B

<missing> 8 months ago /bin/sh -c #(nop) EXPOSE 139/tcp 0 B

<missing> 8 months ago /bin/sh -c #(nop) EXPOSE 445/tcp 0 B

<missing> 8 months ago /bin/sh -c mkdir logs 0 B

<missing> 8 months ago /bin/sh -c chmod +x /jfileserver/runsrv.sh 163 B

<missing> 8 months ago /bin/sh -c #(nop) COPY dir:537276cdaeef9e9... 20.3 MB

<missing> 2 years ago /bin/sh -c #(nop) WORKDIR /jfileserver 0 B

<missing> 2 years ago /bin/sh -c #(nop) LABEL maintainer=gk.spe... 0 B

<missing> 2 years ago /bin/sh -c #(nop) LABEL description=Java ... 0 B

<missing> 2 years ago /bin/sh -c /var/lib/dpkg/info/ca-certifica... 355 kB

<missing> 2 years ago /bin/sh -c set -ex; if [ ! -d /usr/share... 348 MB

<missing> 2 years ago /bin/sh -c #(nop) ENV CA_CERTIFICATES_JAV... 0 B

<missing> 2 years ago /bin/sh -c #(nop) ENV JAVA_DEBIAN_VERSION... 0 B

<missing> 2 years ago /bin/sh -c #(nop) ENV JAVA_VERSION=8u181 0 B

<missing> 2 years ago /bin/sh -c #(nop) ENV JAVA_HOME=/docker-j... 0 B

<missing> 2 years ago /bin/sh -c ln -svT "/usr/lib/jvm/java-8-op... 33 B

<missing> 2 years ago /bin/sh -c { echo '#!/bin/sh'; echo 's... 87 B

<missing> 2 years ago /bin/sh -c #(nop) ENV LANG=C.UTF-8 0 B

<missing> 2 years ago /bin/sh -c apt-get update && apt-get insta... 2.21 MB

<missing> 2 years ago /bin/sh -c apt-get update && apt-get insta... 142 MB

<missing> 2 years ago /bin/sh -c set -ex; if ! command -v gpg >... 7.81 MB

<missing> 2 years ago /bin/sh -c apt-get update && apt-get insta... 23.2 MB

<missing> 2 years ago /bin/sh -c #(nop) CMD ["bash"] 0 B

<missing> 2 years ago /bin/sh -c #(nop) ADD file:a61c14b18252183... 101 MB

如果看不全的话可以加一个 --no-trunc参数（注意，输入的是镜像的名字而不是容器ID）：

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history --no-trunc filesysorg/jfileserver 
IMAGE                                                                     CREATED             CREATED BY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             SIZE                COMMENT
sha256:c53ea72b6badb601f1e50457c83bfddbb68d079000e62400cc29b48cdf9a40fd   8 months ago        /bin/sh -c #(nop)  ENTRYPOINT ["/jfileserver/runsrv.sh"]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               0 B                 
<missing>                                                                 8 months ago        /bin/sh -c #(nop)  ENV JFSRV_DEBUG_LOGPATH=/jfileserver/logs/jfileserver.log                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           0 B                 
<missing>                                                                 8 months ago        /bin/sh -c #(nop)  ENV JFSRV_DEBUG_OUTPUT=File                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         0 B                 
<missing>                                                                 8 months ago        /bin/sh -c #(nop)  ENV JFSRV_NORMAL_PASSWORD=java

[root@iZj6c9wo7lpk4csgnvjsbzZ ~]# docker history --no-trunc filesysorg/jfileserver

IMAGE CREATED CREATED BY SIZE COMMENT

sha256:c53ea72b6badb601f1e50457c83bfddbb68d079000e62400cc29b48cdf9a40fd 8 months ago /bin/sh -c #(nop) ENTRYPOINT ["/jfileserver/runsrv.sh"] 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_DEBUG_LOGPATH=/jfileserver/logs/jfileserver.log 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_DEBUG_OUTPUT=File 0 B

<missing> 8 months ago /bin/sh -c #(nop) ENV JFSRV_NORMAL_PASSWORD=java

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查看Docker镜像Dockefile

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