unable to install vim on docker's ubuntu container

Using ubuntu 14.04 platform, installed docker:

ubuntu@ubuntu:~$ docker --version
Docker version 1.10.2, build c3959b1

in docker, running ubuntu image/container

root@2a14c4a7b565:/# uname -a
Linux 2a14c4a7b565 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

root@2a14c4a7b565:/# sudo apt-get install vim

then it is showing logn msg

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finally last line like this

E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/v/vim/vim_7.4.052-                                                                                        1ubuntu3_amd64.deb  Could not resolve 'archive.ubuntu.com'

how to fix?

Run the following command inside your container:

apt-get update
apt-get install vim