This section of the wiki gives information on how to use the docker.
To install Git you can open a terminal and run:
sudo apt install git
After that, you can check the version installed and configure the credentials with:
$ git --version
$ git config --global user.name <"name surnace">
$ git config --global user.email <"youremail@yourdomain.it">
After this, if you don't have an SSH key for your Github account, you need to create a new one to use the repositories:
- go to Settings/SSH and GPG Keys
- open a terminal and run these commands:
Copy the content of your public SSH into the box at the link before and press "New SSH key". You can now clone the repositories with SSH without having to issue the password every time (I suggest to do not set any passphrase).
$ ssh-keygen $ cd ~/.ssh/ $ cat id_rsa.pub
Clone in the $HOME folder (usually is "home/USERNAME") the lab-docker repository:
$ git clone git@github.com:mfocchi/lab-docker.git
- Run the script install_docker.sh. This script is important because it installs the docker client on your machine and adds to your user the privileges to run the docker images.
$ ./install_docker.sh
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If everything went smooth you should read: To start docker, reboot the system! You can now restart the PC so that all changes made can be applied.
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If you look into your host Ubuntu home directory, you will see that the trento_lab_home directory has been created.
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if you have troubles using gedit use other editors like vim or nano in place of gedit
If your PC is provided with an NVIDIA graphics card, you can install its drivers in Ubuntu by following these steps:
add the repository
sudo add-apt-repository ppa:graphics-drivers/ppa
update the repository list:
sudo apt-get update
Install the driver, note that for Ubuntu 20.04 the 515 version is ok, for Ubuntu 22.04 the 535 is ok, but you can use also other versions:
sudo apt-get install nvidia-driver-X
The reboot the system
sudo reboot
Now tell the system to use that driver:
- open the Software & Updates application
- go to "Additional Drivers" and select the latest driver you just installed with "proprietary, tested" description
- press on "Apply Changes".
You can verify if the drivers are installed by opening a terminal and running:
nvidia-smi
If this does not work, and you are sure you correctly installed the drivers, you might need to deactivate the "safe boot" feature from your BIOS, that usually prevents to load the driver.
Check this section only if you had any issues in running the docker!
- When launching any graphical interface inside docker (e.g. pycharm or gedit) you get this error:
No protocol specified
Unable to init server: Could not connect: Connection refused
(gedit:97): Gtk-WARNING **: 08:21:29.767: cannot open display: :0.0
It means that docker is not copying properly the value of you DISPLAY environment variable, you could try to solve it in this way, in a terminal outside docker launch:
echo $DISPLAY
and you will obtain a value (e.g. :0) if you run the same command in a docker terminal the value will be different, then in the .bashrc inside the docker add the following line:
export DISPLAY=value
- When installing docker using ./installation_tools/install_docker.sh you may have a pip3 syntax error.
You could try to solve it in this way:
curl https://bootstrap.pypa.io/pip/3.5/get-pip.py -o get-pip.py
python3 get-pip.py
rm get-pip.py
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If you do not have Nvidia drivers installed, then make sure you are not using the
-nvoption when launchinglab-docker.py. You may get a message in the terminal that looks like this:
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Nvidia error: could not select device driver “” with capabilities:
You can solve this way:
sudo apt install -y nvidia-docker2
sudo systemctl daemon-reload
sudo systemctl restart docker