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Security Considerations for Container Runtimes

 

December 19, 2018
Daniel Walsh
Related topics:
ContainersKubernetesSecurity
Related products:
Red Hat OpenShift Container Platform

Share:

    https://www.youtube.com/watch?v=HIM0HwWLJ7g

    The recording of my talk Security Considerations for Container Runtimes - Dan Walsh, Red Hat (@rhatdan)

    Explain/demonstrates using Kubernetes with different security features for your container environment

    General Concept

    • Run containers without root, period
    • Take advantage of all security features the host provides

    Configuring CRI-O:

    • Run containers with read-only images
    • Limit the Linux capabilities running within your container
    • Set up container storage to modify the storage options in a more secure manner
    • Configure alternative OCI Runtimes: Kata, Gvisord and Nabla to run locked down containers

    Building images with security in mind.

    • Limit packages/attack surface of container images
    • Build container images within a locked down kubernetes container

    Advances in User Namespaces

    • Demonstrate running each container with a different User Namespace
    • Configure system to take advantage of user namespace container separation, without taking a drastic speed hit

    And many more...

    You might find Scott McCarty's article A Practical Introduction to Container Terminology helpful for a comparison of container runtimes.

    See also Containers without daemons: Podman and Buildah available in Red Hat Enterprise Linux 7.6 and Red Hat Enterprise Linux 8 Beta.

     

    Last updated: February 11, 2024

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