centos를 base image로 하여 httpd를 설치 후 간단한 index.html 파일을 배포하는 Dockerfile을 작성해 image를 build한 후 container를 생성하라.

1. root@ubuntu:~# mkdir prac root@ubuntu:~# cd prac

2. root@ubuntu:~/prac# vi index.html

   NULL 사랑해
   워~~~~~~~~~~
   

3. root@ubuntu:~/prac# vi Dockerfile

   FROM centos:7
   
   RUN yum -y update && \\
       yum -y install httpd
   
   EXPOSE 80
   
   CMD ["/usr/sbin/httpd", "-D", "FOREGROUND"]
   
   COPY ./index.html /var/www/html/
   
   #WORKDIR /var/www/html
   #COPY ./index.html .
   

4. root@ubuntu:~/prac# docker build -t my_cent .

5. root@ubuntu:~/prac# docker run --name my_cent -dp 5555:80 my_cent

   root@ubuntu:~/prac# docker run --name my_cent -dp 5555:80 my_cent
   cd05b312e90af0bd15616c6f0574797429c8065a714d2df68bd7aa559fcbc6f9
   

6. root@ubuntu:~/prac# curl localhost:5555

   root@ubuntu:~/prac# curl localhost:5555
   NULL 사랑해
   워~~~~~~~~~~