Dockerfile

文章目录

- Dockerfile
- - 1. 结构
  - 2. 指令
  - 3. 创建镜像
  - 4. 创建 nginx 镜像
  - 5. 制作 httpd 镜像
  - - 5.1 创建工作目录
    - 5.2 先启动一个容器，在容器中编译安装httpd操作
    - 5.3 编写dockerfile
    - - 5.3.1 第一个dockerfile文件
      - 5.3.2 第二个dockerfile文件
      - 5.3.3 第三个dockerfile文件
      - 5.3.4 写一个执行脚本，改dockerfile文件，第四个dockerfile文件
    - 5.4 制作镜像
    - 5.5 测试
    - 5.6 上传

1. 结构

Dockerfile 由一行行命令语句组成，并且支持以 # 开头的注释行。
Docker分为四部分：
- 基础镜像信息
- 维护者信息
- 镜像操作指令
- 容器启动时默认要执⾏的指令

# This dockerfile uses the ubuntu image
# VERSION 2 - EDITION 1
# Author: seancheng
# Command format: Instruction [arguments / command] ...
# 第⼀⾏必须指定基于的基础镜像
FROM ubuntu
# 维护者信息
LABEL MAINTAINER='seancheng xianshangxian@126.com'
# 镜像操作指令
RUN echo "deb http://archive.ubuntu.com/ubuntu/ raring main universe" >> /etc/apt/sources.list
RUN apt-get update && apt-get install -y nginx //更新，安装
RUN echo "ndaemon off;" >> /etc/nginx/nginx.conf
ndaemon off; 在前台运行 
n 换行        
# 容器启动时默认要执⾏的指令
CMD /usr/sbin/nginx

2. 指令

FROM

格式为 FROM  或 FROM :

LABEL MAINTAINER

格式为 LABEL MAINTAINER  ，指定维护者
信息

格式为 
RUN  ,RUN ["/bin/bash","-c","echo hello"]
在shell终端中运⾏命令，即/bin/sh -c
或 
RUN ["executable","param1","param2"],RUN echo "hello worldnhello tom" > /tmp/abc && 
 cat /tmp/abc
使⽤exec执⾏,每条RUN指令将在当前镜像基础上执⾏指定命令，并提交为新的镜像。当命令较⻓时可以使⽤  来换⾏

CMD ["executable","param1","param2"] 使⽤exec执⾏，推荐⽅式
CMD command param1 param2 在/bin/sh中执⾏，提供给需要交互的应⽤
CMD ["param1","param2"] 提供给ENTRYPOINT的默认参数

EXPOSE

格式为 EXPOSE  [...] 
EXPOSE 22 80 8443

格式为 ENV   。指定⼀个环境变量，会被后续RUN指令
使⽤，并在容器运⾏时保持
ENV PG_MAJOR 9.3
ENV PG_VERSION 9.3.4
RUN curl -SL http://example.com/postgres-$PG_VERSION.tar.xz
 | tar -xJC /usr/src/postgress && ...
ENV PATH /usr/local/postgres-$PG_MAJOR/bin:$PATH

ENTRYPOINT

ENTRYPOINT ["executable","param1","param2"]
ENTRYPOINT command param1 param2（在shell中执⾏）
每个Dockerfile中只能有⼀个ENTRYPOINT

ENTRYPOINT ["/usr/sbin/nginx"]

ADD  
将复制指定的到容器中的。

其中可以是Dockerfile所在目录的一个相对路径（文件或目录）
ADD files/* /usr/src/ 
可以是一个URL
ADD https://downloads.apache.org/apr/apr-util-1.6.1.tar.gz /usr/src/
可以是一个tar文件（会自动解压为目录）
ADD apr-1.7.0.tar.gz /usr/src/

COPY

COPY  
复制本地主机的（为Dockerfile所在目录的相对路径，文件或目录）为容器中的。目标路径不存在时会自动创建

COPY files /usr/src/

VOLUME

VOLUME ["/data"]
创建一个可以从本地主机或其他容器挂载的挂载点，一般用来存放数据库和需要保持的数据

USER

USER 
指定运行容器时的用户名或UID，后续的RUN也会使用指定用户
RUN groupadd -r postgres && useradd -r -g postgres postgres

WORKDIR

WORKDIR /path/to/workdir
指令配置⼯作⽬录

ONBUILD

ONBUILD [INSTRUCTION]
配置当所创建的镜像作为其他镜像的基础镜像时，所执⾏的操作指令

ONBUILD ADD files /usr/src/

3. 创建镜像

通过docker build命令来创建镜像，基本的格式为 docker build [选项] 路径
例如，指定Dockerfile所在路径为/tmp/docker_builder/，并且希望⽣成镜像标签为build_repo/first_image，可以使⽤下⾯的命令

docker build -t build_repo/first_image /tmp/docker_builder/

4. 创建 nginx 镜像

[root@SYL4 ~]# mkdir nginx//创建目录
[root@SYL4 ~]# cd nginx/
[root@SYL4 nginx]# touch Dockerfile
[root@SYL4 nginx]# vim Dockerfile //编写
[root@SYL4 nginx]# cat Dockerfile 
FROM ubuntu

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

RUN echo "deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse" > etc/apt/sources.list && 
    echo "deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse" >> /etc/apt/sources.list && 
    echo "deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse" >> /etc/apt/sources.list && 
    apt-get update && apt-get -y install nginx && 
    echo "ndaemon off;" >> /etc/nginx/nginx.conf

CMD ["/usr/sbin/nginx"]  //或者/usr/sbin/nginx
[root@SYL4 nginx]# 

[root@SYL4 nginx]# docker build -t nginx:2060.1 .  //在当前目录下制作镜像

CMD 和 ENTRYPOINT，创建镜像

[root@SYL4 nginx]# cat Dockerfile 
FROM ubuntu

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

........ 省略

    apt-get update && apt-get -y install nginx
#    echo "ndaemon off;" >> /etc/nginx/nginx.conf

CMD ["-g","daemon off;"]
ENTRYPOINT ["/usr/sbin/nginx"]
[root@SYL4 nginx]# 
[root@SYL4 nginx]# docker build -t nginx:2060.3 .

[root@SYL4 ~]# docker run -d --name web nginx:2060.3
460f7ac5c0133b642f91ac324a2276a880a13438ad4b5cb772f983235c0e9dc8
[root@SYL4 ~]# docker ps -a 
CONTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS     NAMES
460f7ac5c013   nginx:2060.3   "/usr/sbin/nginx -g …"   8 seconds ago   Up 7 seconds             web
[root@SYL4 ~]# 

 "Cmd": [
                "-g",
                "daemon off;"
            ],
            "Image": "nginx:2060.3",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": [
                "/usr/sbin/nginx"

暴露端口号，制作镜像，并访问

[root@SYL4 nginx]# cat Dockerfile 
FROM ubuntu

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

RUN echo "deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse" > etc/apt/sources.list && 
    
......

    apt-get update && apt-get -y install nginx
#    echo "ndaemon off;" >> /etc/nginx/nginx.conf

EXPOSE 80 443

CMD ["-g","daemon off;"]
ENTRYPOINT ["/usr/sbin/nginx"]
[root@SYL4 nginx]#
制作镜像        
[root@SYL4 nginx]# docker build -t nginx:2060.4 .

运行
[root@SYL4 ~]# docker run -d --name web1 nginx:2060.4
bdaeaf7f9d0a3f2c1e3c548d1cae9672208456a9a7fc631394e4f41b901915c4
[root@SYL4 ~]# docker ps -a 
CONTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS             NAMES
bdaeaf7f9d0a   nginx:2060.4   "/usr/sbin/nginx -g …"   2 seconds ago   Up 1 second    80/tcp, 443/tcp   web1
460f7ac5c013   nginx:2060.3   "/usr/sbin/nginx -g …"   8 minutes ago   Up 8 minutes                     web
[root@SYL4 ~]# 

访问        
[root@SYL4 ~]# curl 172.17.0.3



Welcome to nginx!



Welcome to nginx!
If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.

For online documentation and support please refer to
nginx.org.

Commercial support is available at
nginx.com.

Thank you for using nginx.


[root@SYL4 ~]#

环境变量

[root@SYL4 nginx]# vim Dockerfile 
[root@SYL4 nginx]# cat Dockerfile 
FROM ubuntu

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

ENV a=10

RUN echo "deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse" > etc/apt/sources.list && 
   
.....

    apt-get update && apt-get -y install nginx
#    echo "ndaemon off;" >> /etc/nginx/nginx.conf

EXPOSE 80 443

CMD ["-g","daemon off;"]
ENTRYPOINT ["/usr/sbin/nginx"]
[root@SYL4 nginx]#

[root@SYL4 nginx]# docker build -t nginx:2060.5 .       
运行容器        
[root@SYL4 ~]# docker run -d --name web2 nginx:2060.5
5fcbe6f624a5032d4b8dd9cfadac893a66207739c67b8da1a900b8b9e5517d71
[root@SYL4 ~]# docker exec -it web2 /bin/bash
root@5fcbe6f624a5:/# echo $a
10
root@5fcbe6f624a5:/# bash
root@5fcbe6f624a5:/# bash
root@5fcbe6f624a5:/# echo $a
10
root@5fcbe6f624a5:/# exit
exit
root@5fcbe6f624a5:/# exit
exit
root@5fcbe6f624a5:/# exit
exit
[root@SYL4 ~]#

5. 制作 httpd 镜像 5.1 创建工作目录

[root@SYL4 ~]# mkdir httpd
[root@SYL4 ~]# cd httpd
[root@SYL4 httpd]# touch Dockerfile
[root@SYL4 httpd]# 
[root@SYL4 httpd]# ls
Dockerfile        apr-util-1.6.1.tar.gz
apr-1.7.0.tar.gz  httpd-2.4.53.tar.gz
[root@SYL4 httpd]# mkdir files
[root@SYL4 httpd]# ls
Dockerfile        apr-util-1.6.1.tar.gz  httpd-2.4.53.tar.gz
apr-1.7.0.tar.gz  files
[root@SYL4 httpd]# mv *.gz files
[root@SYL4 httpd]# ls
Dockerfile  files

5.2 先启动一个容器，在容器中编译安装httpd操作

[root@SYL4 httpd]# docker run -it centos /bin/bash
[root@74e93d1c1421 /]# useradd -r -M -s /sbin/nologin apache
[root@74e93d1c1421 /]# id apache
uid=998(apache) gid=996(apache) groups=996(apache)
[root@74e93d1c1421 /]#

[root@SYL4 httpd]# docker cp files 74e93d1c1421:/usr/src/
[root@SYL4 httpd]#
解压目录
[root@74e93d1c1421 files]# tar xf apr-1.7.0.tar.gz 
[root@74e93d1c1421 files]# tar xf apr-util-1.6.1.tar.gz 
[root@74e93d1c1421 files]# tar xf httpd-2.4.53.tar.gz 
[root@74e93d1c1421 files]# ls
apr-1.7.0         apr-util-1.6.1         httpd-2.4.53
apr-1.7.0.tar.gz  apr-util-1.6.1.tar.gz  httpd-2.4.53.tar.gz
[root@74e93d1c1421 files]# rm -f *.gz
[root@74e93d1c1421 files]# ls
apr-1.7.0  apr-util-1.6.1  httpd-2.4.53
[root@74e93d1c1421 files]# mv * /usr/src 
[root@74e93d1c1421 files]# cd ..
[root@74e93d1c1421 src]# ls 
apr-1.7.0  apr-util-1.6.1  debug  files  httpd-2.4.53  kernels
[root@74e93d1c1421 src]# rm -rf files 
[root@74e93d1c1421 src]# 

进入apr目录，编译安装apr
[root@74e93d1c1421 apr-1.7.0]# sed -n '/$RM "$cfgfile"/p' configure
    $RM "$cfgfile"
[root@74e93d1c1421 apr-1.7.0]# sed -i '/$RM "$cfgfile"/d' configure
[root@74e93d1c1421 apr-1.7.0]#./configure --prefix=/usr/local/apr 
[root@74e93d1c1421 apr-1.7.0]# make
[root@74e93d1c1421 apr-1.7.0]# make install

进入apr-util，编译安装
[root@74e93d1c1421 apr-1.7.0]# cd ../apr-util-1.6.1/
[root@74e93d1c1421 apr-util-1.6.1]# ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr 
[root@74e93d1c1421 apr-util-1.6.1]# make
[root@74e93d1c1421 apr-util-1.6.1]# make install

进入httpd，编译安装
[root@74e93d1c1421 apr-util-1.6.1]# cd ../httpd-2.4.53/
[root@74e93d1c1421 httpd-2.4.53]# ./configure --prefix=/usr/local/apache         --enable-so         --enable-ssl         --enable-cgi         --enable-rewrite         --with-zlib         --with-pcre         --with-apr=/usr/local/apr         --with-apr-util=/usr/local/apr-util/         --enable-modules=most         --enable-mpms-shared=all         --with-mpm=prefork
[root@74e93d1c1421 httpd-2.4.53]# make
[root@74e93d1c1421 httpd-2.4.53]# make install
[root@74e93d1c1421 /]# du -sh *

5.3 编写dockerfile 5.3.1 第一个dockerfile文件

[root@SYL4 ~]# cd httpd/
[root@SYL4 httpd]# ls
Dockerfile  files
[root@SYL4 httpd]# vim Dockerfile 
[root@SYL4 httpd]# cat Dockerfile 
FROM centos

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

EXPOSE 80 443 
ADD files/* /usr/src/

RUN useradd -r -M -s /sbin/nologin apache && 
    rm -rf /etc/yum.repos.d/* && 
    curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo  && 
    sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo  && 
    yum clean all && 
    yum -y install openssl-devel pcre-devel expat-devel libtool make gcc gcc-c++ && 
    cd /usr/src/apr-1.7.0 && 
    sed -i '/$RM "$cfgfile"/d' configure && 
    ./configure --prefix=/usr/local/apr && 
    make && 
    make install && 
    cd ../apr-util-1.6.1/ && 
    ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr && 
    make && 
    make install && 
    cd ../httpd-2.4.53/ && 
    ./configure --prefix=/usr/local/apache 
        --enable-so 
        --enable-ssl 
        --enable-cgi 
        --enable-rewrite 
        --with-zlib 
        --with-pcre 
        --with-apr=/usr/local/apr 
        --with-apr-util=/usr/local/apr-util/ 
        --enable-modules=most 
        --enable-mpms-shared=all 
        --with-mpm=prefork && 
    make && 
    make install

WORKDIR /usr/local/apache
CMD ["-D","FOREGROUND"]
ENTRYPOINT ["/usr/local/apache/bin/httpd"]    
[root@SYL4 httpd]#

5.3.2 第二个dockerfile文件

[root@SYL4 httpd]# vim Dockerfile 
[root@SYL4 httpd]# cat Dockerfile 
FROM centos

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

EXPOSE 80 443 

ADD files/* /usr/src/

RUN useradd -r -M -s /sbin/nologin apache && 
    rm -rf /etc/yum.repos.d/* && 
    curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo  && 
    sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo  && 
    yum clean all && 
    yum -y install openssl-devel pcre-devel expat-devel libtool make gcc gcc-c++ && 
    cd /usr/src/apr-1.7.0 && 
    sed -i '/$RM "$cfgfile"/d' configure && 
    ./configure --prefix=/usr/local/apr && 
    make && 
    make install && 
    cd ../apr-util-1.6.1/ && 
    ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr && 
    make && 
    make install && 
    cd ../httpd-2.4.53/ && 
    ./configure --prefix=/usr/local/apache 
        --enable-so 
        --enable-ssl 
        --enable-cgi 
        --enable-rewrite 
        --with-zlib 
        --with-pcre 
        --with-apr=/usr/local/apr 
        --with-apr-util=/usr/local/apr-util/ 
        --enable-modules=most 
        --enable-mpms-shared=all 
        --with-mpm=prefork && 
    make && 
    make install && 
    yum -y remove gcc gcc-c++ make && 
    rm -rf /var/log/* /var/cache/* /usr/src/*

WORKDIR /usr/local/apache
CMD ["-D","FOREGROUND"]
ENTRYPOINT ["/usr/local/apache/bin/httpd"]    
[root@SYL4 httpd]#

5.3.3 第三个dockerfile文件

[root@SYL4 httpd]# vim Dockerfile 
[root@SYL4 httpd]# cat Dockerfile 
FROM centos

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

EXPOSE 80 443 

ENV VERSION 2.4.53
ENV PATH /usr/local/apache/bin:$PATH

ADD files/apr-1.7.0.tar.gz /usr/src/
ADD files/apr-util-1.6.1.tar.gz /usr/src/
ADD https://downloads.apache.org/httpd/httpd-${VERSION}.tar.gz /usr/src/

RUN useradd -r -M -s /sbin/nologin apache && 
    rm -rf /etc/yum.repos.d/* && 
    curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo  && 
    sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo  && 
    yum clean all && 
    yum -y install openssl-devel pcre-devel expat-devel libtool make gcc gcc-c++ && 
    cd /usr/src && 
    tar xf httpd-${VERSION}.tar.gz && 
    cd /usr/src/apr-1.7.0 && 
    sed -i '/$RM "$cfgfile"/d' configure && 
    ./configure --prefix=/usr/local/apr && 
    make && 
    make install && 
    cd ../apr-util-1.6.1/ && 
    ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr && 
    make && 
    make install && 
    cd ../httpd-${VERSION}/ && 
    ./configure --prefix=/usr/local/apache 
        --enable-so 
        --enable-ssl 
        --enable-cgi 
        --enable-rewrite 
        --with-zlib 
        --with-pcre 
        --with-apr=/usr/local/apr 
        --with-apr-util=/usr/local/apr-util/ 
        --enable-modules=most 
        --enable-mpms-shared=all 
        --with-mpm=prefork && 
    make && 
    make install && 
    yum -y remove gcc gcc-c++ make && 
    rm -rf /var/log/* /var/cache/* /usr/src/*

WORKDIR /usr/local/apache
CMD ["-D","FOREGROUND"]
ENTRYPOINT ["/usr/local/apache/bin/httpd"]    
[root@SYL4 httpd]#

5.3.4 写一个执行脚本，改dockerfile文件，第四个dockerfile文件

[root@SYL4 ~]# cd httpd/
[root@SYL4 httpd]# ls
Dockerfile  files
[root@SYL4 httpd]# cat Dockerfile > files/install.sh
[root@SYL4 httpd]# vim files/install.sh 
[root@SYL4 httpd]# cat files/install.sh 
#!/bin/bash

useradd -r -M -s /sbin/nologin apache && 
rm -rf /etc/yum.repos.d/* && 
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo  && 
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo  && 
yum clean all && 
yum -y install openssl-devel pcre-devel expat-devel libtool make gcc gcc-c++ && 
cd /usr/src && 
tar xf httpd-${VERSION}.tar.gz && 
cd /usr/src/apr-1.7.0 && 
sed -i '/$RM "$cfgfile"/d' configure && 
./configure --prefix=/usr/local/apr && 
make && 
make install && 
cd ../apr-util-1.6.1/ && 
./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr && 
make && 
make install && 
cd ../httpd-${VERSION}/ && 
./configure --prefix=/usr/local/apache 
        --enable-so 
        --enable-ssl 
        --enable-cgi 
        --enable-rewrite 
        --with-zlib 
        --with-pcre 
        --with-apr=/usr/local/apr 
        --with-apr-util=/usr/local/apr-util/ 
        --enable-modules=most 
        --enable-mpms-shared=all 
        --with-mpm=prefork && 
make && 
make install && 
yum -y remove gcc gcc-c++ make && 
rm -rf /var/log/* /var/cache/* /usr/src/* /tmp/*
[root@SYL4 httpd]#

dockerfile 文件
[root@SYL4 httpd]# vim Dockerfile 
[root@SYL4 httpd]# cat Dockerfile 
FROM centos

LABEL MAINTAINER "xiaoyinguhong 3066347695@qq.com"

EXPOSE 80 443 

ENV VERSION 2.4.53
ENV PATH /usr/local/apache/bin:$PATH

ADD files/apr-1.7.0.tar.gz /usr/src/
ADD files/apr-util-1.6.1.tar.gz /usr/src/
ADD https://downloads.apache.org/httpd/httpd-${VERSION}.tar.gz /usr/src/
ADD files/install.sh /tmp/

RUN /bin/bash /tmp/install.sh

WORKDIR /usr/local/apache
CMD ["-D","FOREGROUND"]
ENTRYPOINT ["/usr/local/apache/bin/httpd"]    
[root@SYL4 httpd]#

5.4 制作镜像

第一个镜像
[root@SYL4 httpd]# docker build -t httpd:2060.1 .
[root@SYL4 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED         SIZE
httpd        2060.1    1944c777af04   4 minutes ago   706MB
centos       latest    5d0da3dc9764   7 months ago    231MB
[root@SYL4 ~]# 

第二个镜像
[root@SYL4 httpd]# docker build -t httpd:2060.2 .
[root@SYL4 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
httpd        2060.2    90e8433625f3   18 seconds ago   411MB
httpd        2060.1    1944c777af04   21 minutes ago   706MB

第三个镜像
[root@SYL4 httpd]# docker build -t httpd:2060.3 .
[root@SYL4 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
httpd        2060.3    7a446fbf6a14   11 seconds ago   379MB
httpd        2060.2    90e8433625f3   28 minutes ago   411MB
httpd        2060.1    1944c777af04   49 minutes ago   706MB

第四个镜像
[root@SYL4 httpd]# docker build -t httpd:2060.4 .
[root@SYL4 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED             SIZE
httpd        2060.4    fd45f4552117   38 seconds ago      379MB
httpd        2060.3    7a446fbf6a14   28 minutes ago      379MB
httpd        2060.2    90e8433625f3   56 minutes ago      411MB
httpd        2060.1    1944c777af04   About an hour ago   706MB

5.5 测试

第一个测试
[root@SYL4 ~]# docker run -d --name web --rm httpd:2060.1
6c16897b1ad505749381b8d2b9f4d789f90758bfcb9ec3cf07a0e01438a26229
[root@SYL4 ~]# docker ps 
CONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS          PORTS             NAMES
6c16897b1ad5   httpd:2060.1   "/usr/local/apache/b…"   27 seconds ago   Up 26 seconds   80/tcp, 443/tcp   web
74e93d1c1421   centos         "/bin/bash"              58 minutes ago   Up 58 minutes                     friendly_mirzakhani
[root@SYL4 ~]# curl 172.17.0.3
It works!
[root@SYL4 ~]# 

第二个测试
[root@SYL4 ~]# docker run -d --name myweb --rm xiaoyinguhong/httpd:2060.4
d049c2fa55bd2a2bf4ef8ac4b39a169747eaee885bf27af28c69c6f746ec34f0
[root@SYL4 ~]# docker ps
CONTAINER ID   IMAGE                        COMMAND                  CREATED          STATUS          PORTS             NAMES
d049c2fa55bd   xiaoyinguhong/httpd:2060.4   "/usr/local/apache/b…"   39 seconds ago   Up 37 seconds   80/tcp, 443/tcp   myweb
6c16897b1ad5   httpd:2060.1                 "/usr/local/apache/b…"   3 hours ago      Up 3 hours      80/tcp, 443/tcp   web
[root@SYL4 ~]# curl 172.17.0.2
It works!
[root@SYL4 ~]#

5.6 上传

[root@SYL4 ~]# docker login
Authenticating with existing credentials...
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
[root@SYL4 ~]# docker tag httpd:2060.4 xiaoyinguhong/httpd:2060.4
[root@SYL4 ~]# docker push xiaoyinguhong/httpd:2060.4
The push refers to repository [docker.io/xiaoyinguhong/httpd]
12e03c99ad1d: Pushed 
35565878daa0: Pushed 
ca9be2f85e87: Pushed 
bb32b11cbb88: Pushed 
0b0e76572792: Pushed 
74ddd0ec08fa: Layer already exists 
2060.4: digest: sha256:f630e9682830bd7dd8caabdd7b9db7bcc0b2f1523b78431643977b77cd90b002 size: 1580

查看

Dockerfile

Welcome to nginx! If you see this page, the nginx web server is successfully installed and working. Further configuration is required. For online documentation and support please refer to nginx.org. Commercial support is available at nginx.com. Thank you for using nginx. [root@SYL4 ~]#

It works! [root@SYL4 ~]#

Linux相关栏目本月热门文章

Welcome to nginx!
If you see this page, the nginx web server is successfully installed and working. Further configuration is required.

For online documentation and support please refer to nginx.org.
Commercial support is available at nginx.com.

Thank you for using nginx.
[root@SYL4 ~]#