Singularity Containers on Apple M1 (ARM64)

Overview

Singularity Containers on Apple M1 (ARM64)

This is a repository containing a ready-to-use environment for singularity in arm64 (M1). It has been prepared specifically for the SKA SRC training on containers event and allows you the use of singularity containers with Apple's M1 architecture.

Install UTM for Apple M1

Click here: UTM for M1

Download it and then install it.

Download and unzip the pre-build UTM image ready to use

Click here to download this image.

This is an image created using Ubuntu 20.04 for ARM 64 Architecture.

After that, unzip the file downloaded (from 3GB to 6GB).

Import UTM image from the UTM application

Open UTM application, then click on the menu "File" and then "Import", select the image skatraining-singularity.utm.

Import image

Start the image

Click on the recently imported image and then click > to start.

After that you will see login screen.

Use the following credentials:

  • username: ska
  • passwoord: ska

Connect to the environmente using SSH

Connecting via SSH is a better option than directly using the shell that appears from the screen when starting the Virtual Machine.

To do that, open a Terminal in your host system and type the following:

ssh -p 22022 [email protected]

and you have to use the following credentials:

  • username: ska
  • passwoord: ska

Change keyboard layout

Because the image was built on my machine, in the installation I used my local keyboard layout, so to use your own keyboard layout (FR, DE, UK, ...), to do it you can type the following:

sudo dpkg-reconfigure keyboard-configuration

And then select your keyboard layout. Then you have to reboot the virtual machine by typing: sudo reboot

Building you own container on singularity for M1

Note you can use all Singularity and Docker containers from their Cloud Hubs, but there must be containers on the ARM64 architecture. Many of the containers are already ported to ARM64, but there are still many that have not been migrated to this new architecture.

Here we guide you through the process of creating your own container that will work perfectly for ARM64 architectures.

First, clone this repository:

git clone https://github.com/manuparra/singularitycontainers-on-m1-arm64.git

Then type:

cd singularitycontainers-on-m1-arm64

After that you can build an example container (see the code here ):

sudo singularity build lolcow.sif lolcow.def

After this process you will see a file named: lolcow.sif, now is time to run it:

singularity run lolcow.sif 

You will see the following:

 _________________________________________
/ Best of all is never to have been born. \
\ Second best is to die soon.             /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||


The next step is to build a container that has more functionalities, in this case we are going to create a container that we can use later to improve it and create, for example our python code encapsulated in containers.

First, build the container (you can see how it is created from a definition file here):

sudo singularity build myplottingapp.sif myplottingapp.def 

After this process your container is ready to use by typing:

singularity run myplottingapp.sif testfile.png

Now, you can see a file named testfile.png.

-----------------------------------------------
SKA training: Git and Containers
Plot generated in testfile.png file.
-----------------------------------------------

Another way to interact with the container is to connect to the container and open a shell, for this, we can use the following:

singularity shell myplottingapp.sif

Then, if you want to go back to the host, type: exit

Acknowledgments

(Mateusz Malenta)[https://www.linkedin.com/in/mmalenta/?originalSubdomain=uk] and Alex Clarke

Owner
Manuel Parra
Researcher @CERN Large-scale data processing. Big-Data & Machine Learning Engineer. Software Architect & Developer. Ph.D. candidate #UGR
Manuel Parra
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