Hello!
I am trying with the docker containers of dealii, so I downloaded one of
them and then I ran it
$ docker pull dealii/dealii:v8.4.2-gcc-mpi-fulldepsmanual-debugrelease
$ docker run -i -t dealii/dealii:v8.4.2-gcc-mpi-fulldepsmanual-debugrelease
Now I want to install few things in the container that I uses to run my
program, like `vim`, or like `numpy`,
dealii@a7af5de839fc:~$ apt-get install vim python-numpy
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission
denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you
root?
and I found that I cannot install it because I am not root. Then, I can
just go out and enter as root:
$ docker run -u 0 -i -t
dealii/dealii:v8.4.2-gcc-mpi-fulldepsmanual-debugrelease
root@89620dceb35a:~# apt-get install vim
root@89620dceb35a:~# apt-get install python-pip
root@89620dceb35a:~# pip install --user numpy matplotlib
But know I want to commit this session in order to use it later with these
packages and other ones, so from a different terminal I identify the
running image and commit it
$ docker ps
CONTAINER ID IMAGE
COMMAND CREATED STATUS PORTS
NAMES
89620dceb35a
dealii/dealii:v8.4.2-gcc-mpi-fulldepsmanual-debugrelease "/bin/bash"
5 minutes ago Up 5 minutes sharp_liskov
$ docker commit 89620dceb35a dealii/dealii-and-numpy
The problem is that when I save it, then it is saved as superuser, and I
cannot go back to normal user mode...
Any work-around?
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