Create one image which have base as ubuntu and with git, ntp, apache2

root@ip-172-31-28-155:/home/ubuntu# docker run -itd ubuntu
root@ip-172-31-28-155:/home/ubuntu# docker attach 1e1fe360cf47
[root@1e1fe360cf47 /]# apt-get update
[root@1e1fe360cf47 /]# apt-get install git
[root@1e1fe360cf47 /]# apt-get install ntp
[root@1e1fe360cf47 /]# apt-get install apache2
root@ip-172-31-28-155:/home/ubuntu# docker commit -a"sujith" -m"ubuntu_git" 1e1fe360cf47 srm-ubuntu
root@ip-172-31-28-155:/home/ubuntu# docker images
REPOSITORY                        TAG       IMAGE ID       CREATED          SIZE
manunar1                          latest    ba3b4bb2ee4f   4 seconds ago    611MB
srm-ubuntu                        latest    55edd4725739   42 seconds ago   259MB
ub-up-git-ap2                     latest    3227855a10e9   3 minutes ago    259MB

root@ip-172-31-28-155:/home/ubuntu# docker history ubuntu
IMAGE          CREATED       CREATED BY                                      SIZE      COMMENT
fb52e22af1b0   4 hours ago   /bin/sh -c #(nop)  CMD ["bash"]                 0B
<missing>      4 hours ago   /bin/sh -c #(nop) ADD file:d2abf27fe2e8b0b5f…   72.8MB
root@ip-172-31-28-155:/home/ubuntu# docker history srm-ubuntu
IMAGE          CREATED              CREATED BY                                      SIZE      COMMENT
55edd4725739   About a minute ago   bash                                            187MB     ubuntu_git
fb52e22af1b0   4 hours ago          /bin/sh -c #(nop)  CMD ["bash"]                 0B
<missing>      4 hours ago          /bin/sh -c #(nop) ADD file:d2abf27fe2e8b0b5f…   72.8MB

root@ip-172-31-28-155:/home/ubuntu# docker run -itd srm-ubuntu
c01f05cfa01cdc7c8485c60325e6734ed79200869fdafaa8b195490c0e17e85c

root@ip-172-31-28-155:/home/ubuntu# docker attach c01f05cfa01cdc7c8485c60325e6734ed79200869fdafaa8b195490c0e17e85c