Docker镜像的构建
[*] 容器内部像linux一样操作，然后提交容器成镜像
[*] Dokcerfile提交镜像
一
[*] 创建一个容器
#docker run --name mynginx01 -it centos
# dockerps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
84bcc294325b nginx "nginx -g 'daemon off" 3 seconds ago Up 3 seconds 2.此时已经进入容器
yum-y install wget
wget -O /etc/yum.repos.d/epel.repo
yum-y installnginx
vim/etc/nginx /nginx.conf
...
daemon off;
退出 3,制作镜像
# dockercommit-m"mynginx01"be750c11ab1e mynginx/mynginx:v1
sha256:5143358c3833b4ee5a40b847d86dee072dc7c0bade9358e7d83323d6349784b0
#
mynginx/mynginx:v1 仓库/镜像名称：版本标签
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx/mynginx v1 5143358c3833 41 seconds ago 340.1 MB 二.Dokcerfile制作镜像
# cat Dockerfile
FROM centos
MAINTAINER liuhaixiao
RUN yum-y install wget
RUN rpm -ivh http://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm
RUN wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
RUNyum clean all && yuminstallnginx-y
RUN echo "daemon off;" >>/etc/nginx/nginx.conf
ADD index.html /usr/share/nginx/html/index.html
EXPOSE 80
CMD ["nginx"]
# cat index.html
helloliuhx
# pwd
/root/dockerfile
# 构建镜像
cd /root/dockerfile
Dockerbuild-tmynginx/mynginx03:03./# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx/mynginx03 v3 8c81f51923e5 2 minutes ago 374.6 MB 启动容器：
# dockerrun-d--name nginx007 -p 86:80mynginx/mynginx03:v3
6f2501177ac00e064b22c6c3045b973dc41935e82180753a21a14f3224f5f323
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