大家好，今天我们使用dockerfile 构建自己的centos 系统
看一下这个官网上centos 原生镜像
复制下来：
FROM scratch
ADD centos-7-x86_64-docker.tar.xz /
LABEL \
org.label-schema.schema-version="1.0" \
org.label-schema.name="CentOS Base Image" \
org.label-schema.vendor="CentOS" \
org.label-schema.license="GPLv2" \
org.label-schema.build-date="20201113" \
org.opencontainers.image.title="CentOS Base Image" \
org.opencontainers.image.vendor="CentOS" \
org.opencontainers.image.licenses="GPL-2.0-only" \
org.opencontainers.image.created="2020-11-13 00:00:00+00:00"
CMD ["/bin/bash"]
在官网上的大多数镜像都是基于scratch 这个东西
查看本地镜像（这里建议使用centos7系统 ，默认最新的centos8镜像相关的网络源有问题）
[root@localhost ~]# docker images
运行启动我们原先的centos7.9容器
[root@localhost ~]# docker run -it centos:7.9.2009 /bin/bash
[root@298bee7d20b0 /]#
写自己的centos
创建目录：
[root@localhost home]# mkdir dockerfile
[root@localhost home]# cd dockerfile/
[root@localhost dockerfile]# vim dockerfile-mycentos
原生的centos 镜像很单调，没有vim 命令
[root@298bee7d20b0 /]# vim
bash: vim: command not found
[root@298bee7d20b0 /]#
无法查看IP地址
[root@298bee7d20b0 /]# ifcomfig
bash: ifcomfig: command not found
[root@298bee7d20b0 /]#
写dockerfile文件
[root@localhost home]# cd dockerfile/
[root@localhost dockerfile]# vim dockerfile-mycentos
这是它的dockerfile文件内容
FROM centos:7.9.2009
#依托于centos:7.9.2009做基础镜像
MAINTAINER shuaige<123456.qq.com>
# 这是作者信息，可以随便写
ENV MYPATH /tmp
#指定容器运行时的环境变量
WORKDIR $MYPATH
#镜像的工作目录
RUN yum -y install vim
#运行指令（安装vim）
RUN yum -y install net-tools
#运行指令（安装 net-tools）
EXPOSE 80
#保留端口配置80 端口
CMD echo $MYPATH
CMD echo "success---------ok"
CMD /bin/bash
打包成新的镜像
[root@localhost dockerfile]# docker build -f dockerfile-mycentos -t mycentos:0.1 .
Sending build context to Docker daemon 2.048kB
Step 1/10 : FROM centos:7.9.2009
---> eeb6ee3f44bd
Step 2/10 : MAINTAINER zzyy<zzyy@126.com>
---> Running in 1ff92bc1b164
Removing intermediate container 1ff92bc1b164
---> 51b30a3a47d4
Step 3/10 : ENV MYPATH /tmp
---> Running in b7fa138f873a
Removing intermediate container b7fa138f873a
---> 302085fae2f9
Step 4/10 : WORKDIR $MYPATH
---> Running in 139d84c578f1
Removing intermediate container 139d84c578f1
---> ae3ae6615556
Step 5/10 : RUN yum -y install vim
---> Running in 02ba54621929
Loaded plugins: fastestmirror, ovl
Determining fastest mirrors
* base: mirrors.nju.edu.cn
* extras: mirrors.cn99.com
* updates: mirrors.nju.edu.cn
http://mirrors.cn99.com/centos/7.9.2009/extras/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 502 - Bad Gateway
Trying other mirror.
Resolving Dependencies
--> Running transaction check
---> Package vim-enhanced.x86_64 2:7.4.629-8.el7_9 will be installed
--> Processing Dependency: vim-common = 2:7.4.629-8.el7_9 for package: 2:vim-enhanced-7.4.629-8.el7_9.x86_64
--> Processing Dependency: which for package: 2:vim-enhanced-7.4.629-8.el7_9.x86_64
--> Processing Dependency: perl(:MODULE_COMPAT_5.16.3) for package: 2:vim-enhanced-7.4.629-8.el7_9.x86_64
--> Processing Dependency: libperl.so()(64bit) for package: 2:vim-enhanced-7.4.629-8.el7_9.x86_64
--> Processing Dependency: libgpm.so.2()(64bit) for package: 2:vim-enhanced-7.4.629-8.el7_9.x86_64
--> Running transaction check
---> Package gpm-libs.x86_64 0:1.20.7-6.el7 will be installed
---> Package perl.x86_64 4:5.16.3-299.el7_9 will be installed
--> Processing Dependency: perl(Socket) >= 1.3 for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Scalar::Util) >= 1.10 for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl-macros for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(threads::shared) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(threads) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(constant) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Time::Local) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Time::HiRes) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Storable) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Socket) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Scalar::Util) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Pod::Simple::XHTML) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Pod::Simple::Search) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Getopt::Long) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Filter::Util::Call) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(File::Temp) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(File::Spec::Unix) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(File::Spec::Functions) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(File::Spec) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(File::Path) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Exporter) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Cwd) for package: 4:perl-5.16.3-299.el7_9.x86_64
--> Processing Dependency: perl(Carp) for package: 4:perl-5.16.3-299.el7_9.x86_64
---> Package perl-libs.x86_64 4:5.16.3-299.el7_9 will be installed
---> Package vim-common.x86_64 2:7.4.629-8.el7_9 will be installed
--> Processing Dependency: vim-filesystem for package: 2:vim-common-7.4.629-8.el7_9.x86_64
---> Package which.x86_64 0:2.20-7.el7 will be installed
--> Running transaction check
---> Package perl-Carp.noarch 0:1.26-244.el7 will be installed
---> Package perl-Exporter.noarch 0:5.68-3.el7 will be installed
---> Package perl-File-Path.noarch 0:2.09-2.el7 will be installed
---> Package perl-File-Temp.noarch 0:0.23.01-3.el7 will be installed
---> Package perl-Filter.x86_64 0:1.49-3.el7 will be installed
---> Package perl-Getopt-Long.noarch 0:2.40-3.el7 will be installed
--> Processing Dependency: perl(Pod::Usage) >= 1.14 for package: perl-Getopt-Long-2.40-3.el7.noarch
--> Processing Dependency: perl(Text::ParseWords) for package: perl-Getopt-Long-2.40-3.el7.noarch
---> Package perl-PathTools.x86_64 0:3.40-5.el7 will be installed
---> Package perl-Pod-Simple.noarch 1:3.28-4.el7 will be installed
--> Processing Dependency: perl(Pod::Escapes) >= 1.04 for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
--> Processing Dependency: perl(Encode) for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
---> Package perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 will be installed
---> Package perl-Socket.x86_64 0:2.010-5.el7 will be installed
---> Package perl-Storable.x86_64 0:2.45-3.el7 will be installed
---> Package perl-Time-HiRes.x86_64 4:1.9725-3.el7 will be installed
---> Package perl-Time-Local.noarch 0:1.2300-2.el7 will be installed
---> Package perl-constant.noarch 0:1.27-2.el7 will be installed
---> Package perl-macros.x86_64 4:5.16.3-299.el7_9 will be installed
---> Package perl-threads.x86_64 0:1.87-4.el7 will be installed
---> Package perl-threads-shared.x86_64 0:1.43-6.el7 will be installed
---> Package vim-filesystem.x86_64 2:7.4.629-8.el7_9 will be installed
--> Running transaction check
---> Package perl-Encode.x86_64 0:2.51-7.el7 will be installed
---> Package perl-Pod-Escapes.noarch 1:1.04-299.el7_9 will be installed
---> Package perl-Pod-Usage.noarch 0:1.63-3.el7 will be installed
--> Processing Dependency: perl(Pod::Text) >= 3.15 for package: perl-Pod-Usage-1.63-3.el7.noarch
--> Processing Dependency: perl-Pod-Perldoc for package: perl-Pod-Usage-1.63-3.el7.noarch
---> Package perl-Text-ParseWords.noarch 0:3.29-4.el7 will be installed
--> Running transaction check
---> Package perl-Pod-Perldoc.noarch 0:3.20-4.el7 will be installed
--> Processing Dependency: perl(parent) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
--> Processing Dependency: perl(HTTP::Tiny) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
--> Processing Dependency: groff-base for package: perl-Pod-Perldoc-3.20-4.el7.noarch
---> Package perl-podlators.noarch 0:2.5.1-3.el7 will be installed
--> Running transaction check
---> Package groff-base.x86_64 0:1.22.2-8.el7 will be installed
---> Package perl-HTTP-Tiny.noarch 0:0.033-3.el7 will be installed
---> Package perl-parent.noarch 1:0.225-244.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
vim-enhanced x86_64 2:7.4.629-8.el7_9 updates 1.1 M
Installing for dependencies:
gpm-libs x86_64 1.20.7-6.el7 base 32 k
groff-base x86_64 1.22.2-8.el7 base 942 k
perl x86_64 4:5.16.3-299.el7_9 updates 8.0 M
perl-Carp noarch 1.26-244.el7 base 19 k
perl-Encode x86_64 2.51-7.el7 base 1.5 M
perl-Exporter noarch 5.68-3.el7 base 28 k
perl-File-Path noarch 2.09-2.el7 base 26 k
perl-File-Temp noarch 0.23.01-3.el7 base 56 k
perl-Filter x86_64 1.49-3.el7 base 76 k
perl-Getopt-Long noarch 2.40-3.el7 base 56 k
perl-HTTP-Tiny noarch 0.033-3.el7 base 38 k
perl-PathTools x86_64 3.40-5.el7 base 82 k
perl-Pod-Escapes noarch 1:1.04-299.el7_9 updates 52 k
perl-Pod-Perldoc noarch 3.20-4.el7 base 87 k
perl-Pod-Simple noarch 1:3.28-4.el7 base 216 k
perl-Pod-Usage noarch 1.63-3.el7 base 27 k
perl-Scalar-List-Utils x86_64 1.27-248.el7 base 36 k
perl-Socket x86_64 2.010-5.el7 base 49 k
perl-Storable x86_64 2.45-3.el7 base 77 k
perl-Text-ParseWords noarch 3.29-4.el7 base 14 k
perl-Time-HiRes x86_64 4:1.9725-3.el7 base 45 k
perl-Time-Local noarch 1.2300-2.el7 base 24 k
perl-constant noarch 1.27-2.el7 base 19 k
perl-libs x86_64 4:5.16.3-299.el7_9 updates 690 k
perl-macros x86_64 4:5.16.3-299.el7_9 updates 44 k
perl-parent noarch 1:0.225-244.el7 base 12 k
perl-podlators noarch 2.5.1-3.el7 base 112 k
perl-threads x86_64 1.87-4.el7 base 49 k
perl-threads-shared x86_64 1.43-6.el7 base 39 k
vim-common x86_64 2:7.4.629-8.el7_9 updates 5.9 M
vim-filesystem x86_64 2:7.4.629-8.el7_9 updates 11 k
which x86_64 2.20-7.el7 base 41 k
Transaction Summary
================================================================================
Install 1 Package (+32 Dependent packages)
Total download size: 19 M
Installed size: 63 M
Downloading packages:
warning: /var/cache/yum/x86_64/7/base/packages/gpm-libs-1.20.7-6.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Public key for gpm-libs-1.20.7-6.el7.x86_64.rpm is not installed
Public key for perl-Pod-Escapes-1.04-299.el7_9.noarch.rpm is not installed
--------------------------------------------------------------------------------
Total 1.6 MB/s | 19 MB 00:12
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-9.2009.0.el7.centos.x86_64 (@CentOS)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : gpm-libs-1.20.7-6.el7.x86_64 1/33
Installing : 2:vim-filesystem-7.4.629-8.el7_9.x86_64 2/33
Installing : 2:vim-common-7.4.629-8.el7_9.x86_64 3/33
Installing : which-2.20-7.el7.x86_64 4/33
install-info: No such file or directory for /usr/share/info/which.info.gz
Installing : groff-base-1.22.2-8.el7.x86_64 5/33
Installing : 1:perl-parent-0.225-244.el7.noarch 6/33
Installing : perl-HTTP-Tiny-0.033-3.el7.noarch 7/33
Installing : perl-podlators-2.5.1-3.el7.noarch 8/33
Installing : perl-Pod-Perldoc-3.20-4.el7.noarch 9/33
Installing : 1:perl-Pod-Escapes-1.04-299.el7_9.noarch 10/33
Installing : perl-Encode-2.51-7.el7.x86_64 11/33
Installing : perl-Text-ParseWords-3.29-4.el7.noarch 12/33
Installing : perl-Pod-Usage-1.63-3.el7.noarch 13/33
Installing : 4:perl-macros-5.16.3-299.el7_9.x86_64 14/33
Installing : perl-Storable-2.45-3.el7.x86_64 15/33
Installing : perl-Exporter-5.68-3.el7.noarch 16/33
Installing : perl-constant-1.27-2.el7.noarch 17/33
Installing : perl-Socket-2.010-5.el7.x86_64 18/33
Installing : perl-Time-Local-1.2300-2.el7.noarch 19/33
Installing : perl-Carp-1.26-244.el7.noarch 20/33
Installing : perl-PathTools-3.40-5.el7.x86_64 21/33
Installing : perl-Scalar-List-Utils-1.27-248.el7.x86_64 22/33
Installing : 1:perl-Pod-Simple-3.28-4.el7.noarch 23/33
Installing : perl-File-Temp-0.23.01-3.el7.noarch 24/33
Installing : perl-File-Path-2.09-2.el7.noarch 25/33
Installing : perl-threads-shared-1.43-6.el7.x86_64 26/33
Installing : perl-threads-1.87-4.el7.x86_64 27/33
Installing : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 28/33
Installing : perl-Filter-1.49-3.el7.x86_64 29/33
Installing : 4:perl-libs-5.16.3-299.el7_9.x86_64 30/33
Installing : perl-Getopt-Long-2.40-3.el7.noarch 31/33
Installing : 4:perl-5.16.3-299.el7_9.x86_64 32/33
Installing : 2:vim-enhanced-7.4.629-8.el7_9.x86_64 33/33
Verifying : perl-HTTP-Tiny-0.033-3.el7.noarch 1/33
Verifying : perl-threads-shared-1.43-6.el7.x86_64 2/33
Verifying : perl-Storable-2.45-3.el7.x86_64 3/33
Verifying : groff-base-1.22.2-8.el7.x86_64 4/33
Verifying : perl-Exporter-5.68-3.el7.noarch 5/33
Verifying : perl-constant-1.27-2.el7.noarch 6/33
Verifying : perl-PathTools-3.40-5.el7.x86_64 7/33
Verifying : 4:perl-macros-5.16.3-299.el7_9.x86_64 8/33
Verifying : 2:vim-enhanced-7.4.629-8.el7_9.x86_64 9/33
Verifying : 1:perl-parent-0.225-244.el7.noarch 10/33
Verifying : perl-Socket-2.010-5.el7.x86_64 11/33
Verifying : which-2.20-7.el7.x86_64 12/33
Verifying : 2:vim-filesystem-7.4.629-8.el7_9.x86_64 13/33
Verifying : perl-File-Temp-0.23.01-3.el7.noarch 14/33
Verifying : 1:perl-Pod-Simple-3.28-4.el7.noarch 15/33
Verifying : perl-Time-Local-1.2300-2.el7.noarch 16/33
Verifying : 1:perl-Pod-Escapes-1.04-299.el7_9.noarch 17/33
Verifying : perl-Carp-1.26-244.el7.noarch 18/33
Verifying : 2:vim-common-7.4.629-8.el7_9.x86_64 19/33
Verifying : perl-Scalar-List-Utils-1.27-248.el7.x86_64 20/33
Verifying : perl-Pod-Usage-1.63-3.el7.noarch 21/33
Verifying : perl-Encode-2.51-7.el7.x86_64 22/33
Verifying : perl-Pod-Perldoc-3.20-4.el7.noarch 23/33
Verifying : perl-podlators-2.5.1-3.el7.noarch 24/33
Verifying : 4:perl-5.16.3-299.el7_9.x86_64 25/33
Verifying : perl-File-Path-2.09-2.el7.noarch 26/33
Verifying : perl-threads-1.87-4.el7.x86_64 27/33
Verifying : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 28/33
Verifying : gpm-libs-1.20.7-6.el7.x86_64 29/33
Verifying : perl-Filter-1.49-3.el7.x86_64 30/33
Verifying : perl-Getopt-Long-2.40-3.el7.noarch 31/33
Verifying : perl-Text-ParseWords-3.29-4.el7.noarch 32/33
Verifying : 4:perl-libs-5.16.3-299.el7_9.x86_64 33/33
Installed:
vim-enhanced.x86_64 2:7.4.629-8.el7_9
Dependency Installed:
gpm-libs.x86_64 0:1.20.7-6.el7
groff-base.x86_64 0:1.22.2-8.el7
perl.x86_64 4:5.16.3-299.el7_9
perl-Carp.noarch 0:1.26-244.el7
perl-Encode.x86_64 0:2.51-7.el7
perl-Exporter.noarch 0:5.68-3.el7
perl-File-Path.noarch 0:2.09-2.el7
perl-File-Temp.noarch 0:0.23.01-3.el7
perl-Filter.x86_64 0:1.49-3.el7
perl-Getopt-Long.noarch 0:2.40-3.el7
perl-HTTP-Tiny.noarch 0:0.033-3.el7
perl-PathTools.x86_64 0:3.40-5.el7
perl-Pod-Escapes.noarch 1:1.04-299.el7_9
perl-Pod-Perldoc.noarch 0:3.20-4.el7
perl-Pod-Simple.noarch 1:3.28-4.el7
perl-Pod-Usage.noarch 0:1.63-3.el7
perl-Scalar-List-Utils.x86_64 0:1.27-248.el7
perl-Socket.x86_64 0:2.010-5.el7
perl-Storable.x86_64 0:2.45-3.el7
perl-Text-ParseWords.noarch 0:3.29-4.el7
perl-Time-HiRes.x86_64 4:1.9725-3.el7
perl-Time-Local.noarch 0:1.2300-2.el7
perl-constant.noarch 0:1.27-2.el7
perl-libs.x86_64 4:5.16.3-299.el7_9
perl-macros.x86_64 4:5.16.3-299.el7_9
perl-parent.noarch 1:0.225-244.el7
perl-podlators.noarch 0:2.5.1-3.el7
perl-threads.x86_64 0:1.87-4.el7
perl-threads-shared.x86_64 0:1.43-6.el7
vim-common.x86_64 2:7.4.629-8.el7_9
vim-filesystem.x86_64 2:7.4.629-8.el7_9
which.x86_64 0:2.20-7.el7
Complete!
Removing intermediate container 02ba54621929
---> b1c445827df6
Step 6/10 : RUN yum -y install net-tools
---> Running in f300841acd58
Loaded plugins: fastestmirror, ovl
Loading mirror speeds from cached hostfile
* base: mirrors.nju.edu.cn
* extras: mirrors.cn99.com
* updates: mirrors.nju.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package net-tools.x86_64 0:2.0-0.25.20131004git.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
net-tools x86_64 2.0-0.25.20131004git.el7 base 306 k
Transaction Summary
================================================================================
Install 1 Package
Total download size: 306 k
Installed size: 917 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : net-tools-2.0-0.25.20131004git.el7.x86_64 1/1
Verifying : net-tools-2.0-0.25.20131004git.el7.x86_64 1/1
Installed:
net-tools.x86_64 0:2.0-0.25.20131004git.el7
Complete!
Removing intermediate container f300841acd58
---> 4e1aff525ce9
Step 7/10 : EXPOSE 80
---> Running in 49a2d6c50786
Removing intermediate container 49a2d6c50786
---> ce11f7f3d0a7
Step 8/10 : CMD echo $MYPATH
---> Running in edb759b2805b
Removing intermediate container edb759b2805b
---> 8d2eaa8a2615
Step 9/10 : CMD echo "success---------ok"
---> Running in 6eb9abc40540
Removing intermediate container 6eb9abc40540
---> 4eccba5ba53e
Step 10/10 : CMD /bin/bash
---> Running in 99fdd24a9ad6
Removing intermediate container 99fdd24a9ad6
---> 6e65267278ae
Successfully built 6e65267278ae
Successfully tagged mycentos:0.1
查看镜像
进入我们打包的这个新的容器
[root@localhost dockerfile]# docker run -it mycentos:0.1 /bin/bash
我们可以看见，在我们的容器中，我可以使用ifconfig 来查看网络信息
[root@b6b612ca3965 tmp]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.2 netmask 255.255.0.0 broadcast 172.17.255.255
ether 02:42:ac:11:00:02 txqueuelen 0 (Ethernet)
RX packets 8 bytes 648 (648.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@b6b612ca3965 tmp]#
可以使用vim 命令
[root@b6b612ca3965 tmp]# vim 123.txt
[root@b6b612ca3965 tmp]# vim 123.txt
.ICE-unix/ .Test-unix/ .X11-unix/ .XIM-unix/ .font-unix/ 123.txt ks-script-DrRL8A yum.log
[root@b6b612ca3965 tmp]# cat 123.txt
hello
[root@b6b612ca3965 tmp]#
这是我们自己配置的工作目录
[root@b6b612ca3965 tmp]# pwd
/tmp
查看镜像
查看我们自己写的这个镜像构建的历史和过程
[root@localhost dockerfile]# docker history 6e65267278ae
IMAGE CREATED CREATED BY SIZE COMMENT
6e65267278ae 3 hours ago /bin/sh -c #(nop) CMD ["/bin/sh" "-c" "/bin… 0B
4eccba5ba53e 3 hours ago /bin/sh -c #(nop) CMD ["/bin/sh" "-c" "echo… 0B
8d2eaa8a2615 3 hours ago /bin/sh -c #(nop) CMD ["/bin/sh" "-c" "echo… 0B
ce11f7f3d0a7 3 hours ago /bin/sh -c #(nop) EXPOSE 80 0B
4e1aff525ce9 3 hours ago /bin/sh -c yum -y install net-tools 161MB
b1c445827df6 3 hours ago /bin/sh -c yum -y install vim 216MB
ae3ae6615556 3 hours ago /bin/sh -c #(nop) WORKDIR /tmp 0B
302085fae2f9 3 hours ago /bin/sh -c #(nop) ENV MYPATH=/tmp 0B
51b30a3a47d4 3 hours ago /bin/sh -c #(nop) MAINTAINER zzyy<zzyy@126.… 0B
eeb6ee3f44bd 5 months ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0B
<missing> 5 months ago /bin/sh -c #(nop) LABEL org.label-schema.sc… 0B
<missing> 5 months ago /bin/sh -c #(nop) ADD file:b3ebbe8bd304723d4… 204MB
查看我们Nginx镜像构建的历史和过程
[root@localhost dockerfile]# docker history 605c77e624dd
IMAGE CREATED CREATED BY SIZE COMMENT
605c77e624dd 2 months ago /bin/sh -c #(nop) CMD ["nginx" "-g" "daemon… 0B
<missing> 2 months ago /bin/sh -c #(nop) STOPSIGNAL SIGQUIT 0B
<missing> 2 months ago /bin/sh -c #(nop) EXPOSE 80 0B
<missing> 2 months ago /bin/sh -c #(nop) ENTRYPOINT ["/docker-entr… 0B
<missing> 2 months ago /bin/sh -c #(nop) COPY file:09a214a3e07c919a… 4.61kB
<missing> 2 months ago /bin/sh -c #(nop) COPY file:0fd5fca330dcd6a7… 1.04kB
<missing> 2 months ago /bin/sh -c #(nop) COPY file:0b866ff3fc1ef5b0… 1.96kB
<missing> 2 months ago /bin/sh -c #(nop) COPY file:65504f71f5855ca0… 1.2kB
<missing> 2 months ago /bin/sh -c set -x && addgroup --system -… 61.1MB
<missing> 2 months ago /bin/sh -c #(nop) ENV PKG_RELEASE=1~bullseye 0B
<missing> 2 months ago /bin/sh -c #(nop) ENV NJS_VERSION=0.7.1 0B
<missing> 2 months ago /bin/sh -c #(nop) ENV NGINX_VERSION=1.21.5 0B
<missing> 2 months ago /bin/sh -c #(nop) LABEL maintainer=NGINX Do… 0B
<missing> 2 months ago /bin/sh -c #(nop) CMD ["bash"] 0B
<missing> 2 months ago /bin/sh -c #(nop) ADD file:09675d11695f65c55… 80.4MB
好了，到这里，咱们就成功使用dockerfile构建了自己的centos 系统，谢谢大家
