Kata Containers, Container with VM Isolation

by Davoud Teimouri · Published 12/02/2023 · Updated 05/06/2023

Kata Containers offers method of container deployment with more security. Security is one biggest challenge about containers and containers has lower level of security compared to virtual machines. Because virtual machines are isolated from each other, but containers can’t provide isolation same as virtual machines.

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What’s Kata Containers?

It is an open source community working to build a secure container runtime with lightweight virtual machines that feel and perform like containers, but provide stronger workload isolation using hardware virtualization technology as a second layer of defense.

Kata Containers are as light and fast as containers and integrate with the container management layers including popular orchestration tools such as Docker and Kubernetes (k8s), while also delivering the security advantages of VMs.

Where Can Be Installed?

It’s available for the below Linux distributions:

RHEL
CentOS
Ubuntu
OpenSuse
SLES
Debian
Fedora

Find installation documents at the below link:

Kata Containers installation guides

Kata Containers Supported Hypervisors

It’s supporting the below hypervisors:

Firecracker
QEMU
Cloud Hypervisor

And also supporting some architectures but focused on x86_64.

However, supported hardware features depends on hypervisor but supporting: Nvidia GPU, RDMA, SRIO-V and some other hardware features.

Read more about architecture and design at this link:

Kata Containers Architecture

Conclusion

People are talking about ChatGPT now and no one talking about Cloud-Native anymore! LOL 😀

I want to say that virtualization was a revolution and using container in services allows companies to have faster service deployment and more integration, but security guys always have concern about isolation and no level of isolation is enough for them (kidding).

Kata Containers will be popular in future of Cloud-Native computing, but it still needs to development. I didn’t test it, but it is a valuable idea.