Dockerfile实例_dockerfile文件例子

Dockerfile

nginx实例

[root@localhost ~]# vim Dockerfile
1、基于基础镜像centos:7
FROM centos:7
2、维护者信息
MAINTAINER haha@example.com
3、添加Centos-7仓库
ADD Centos-7.repo /etc/yum.repos.d/
4、添加epel-7仓库
ADD epel-7.repo /etc/yum.repos.d/
5、安装nginx软件包
RUN  yum -y install nginx
6、暴露指定端口80
EXPOSE 80
CMD ["/usr/sbin/nginx","-g","daemon off;"]
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7、构建镜像，镜像名称为nginx:v1
[root@localhost ~]# docker build -t nginx:v1 .
Sending build context to Docker daemon   25.6kB
Step 1/7 : FROM centos:7
7: Pulling from library/centos
2d473b07cdd5: Pull complete 
Digest: sha256:9d4bcbbb213dfd745b58be38b13b996ebb5ac315fe75711bd618426a630e0987
Status: Downloaded newer image for centos:7
 ---> eeb6ee3f44bd
Step 2/7 : MAINTAINER yijq200708@example.com
 ---> Running in 1451d5aa895f
Removing intermediate container 1451d5aa895f
 ---> 0122bfda9eb9
Step 3/7 : ADD Centos-7.repo /etc/yum.repos.d/
 ---> 0589b92f5fb4
Step 4/7 : ADD epel-7.repo  /etc/yum.repos.d/
 ---> f28e41208a24
Step 5/7 : RUN yum -y install nginx
 ---> Running in 98171c0bbe0a
Loaded plugins: fastestmirror, ovl
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Determining fastest mirrors
 * base: mirrors.bupt.edu.cn
 * extras: mirrors.bupt.edu.cn
 * updates: mirrors.bfsu.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package nginx.x86_64 1:1.20.1-9.el7 will be installed
--> Processing Dependency: nginx-filesystem = 1:1.20.1-9.el7 for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libcrypto.so.1.1(OPENSSL_1_1_0)(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libssl.so.1.1(OPENSSL_1_1_0)(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libssl.so.1.1(OPENSSL_1_1_1)(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: nginx-filesystem for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: openssl for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: redhat-indexhtml for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: system-logos for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libcrypto.so.1.1()(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libprofiler.so.0()(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Processing Dependency: libssl.so.1.1()(64bit) for package: 1:nginx-1.20.1-9.el7.x86_64
--> Running transaction check
---> Package centos-indexhtml.noarch 0:7-9.el7.centos will be installed
---> Package centos-logos.noarch 0:70.0.6-3.el7.centos will be installed
---> Package gperftools-libs.x86_64 0:2.6.1-1.el7 will be installed
---> Package nginx-filesystem.noarch 1:1.20.1-9.el7 will be installed
---> Package openssl.x86_64 1:1.0.2k-25.el7_9 will be installed
--> Processing Dependency: openssl-libs(x86-64) = 1:1.0.2k-25.el7_9 for package: 1:openssl-1.0.2k-25.el7_9.x86_64
--> Processing Dependency: make for package: 1:openssl-1.0.2k-25.el7_9.x86_64
---> Package openssl11-libs.x86_64 1:1.1.1k-4.el7 will be installed
--> Runni
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