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<style> .reveal strong { font-weight: bold; color: orange; } .reveal p { text-align: left; } .reveal section h1 { color: orange; } .reveal section h2 { color: orange; } </style>

Virtualization and Containers

Learning Goals

  • Understand the difference between virtualization and containers.
  • Have clarity on when and how to use virtual machines and/or containers.
  • Work with virtual machines (VirtualBox) and manage them with Vagrant.
  • Work with containers with Docker (and Singularity).
  • Know how to set up own containers tailored to your requirements.

Virtualization and Containers for SSE

  • Developing, testing and debugging software
    • Abstraction layer for different OS, configurations etc.
    • Ensure software quality
  • Moving/Sharing software
    • Avoid compilation and/or setup complexity, OS dependency
    • Work around target limitations (e.g. HPC)
  • Manage complex workflows
    • Ideally under version control
    • (Potentially) Break down big software into smaller pieces
  • Reproducible research
    • Make sure others get the same results.
    • Make sure others are able to run your software (also in future).
  • Focus on established, open-source software.

Contents of this Chapter

  • Virtual Machines (VMs)
    • VirtualBox: Popular hypervisor for running VMs
    • Vagrant: Popular management system for VMs (and more)
  • Containers
    • Docker: Popular container framework (and more)
    • Singularity: Popular scientific container framework