Survey

Please take the Kata Containers survey:

• https://openinfrafoundation.formstack.com/forms/kata_containers_user_survey

This will help the Kata Containers community understand:

• how you use Kata Containers
• what features and improvements you would like to see in Kata Containers

Libseccomp Notices

The kata-agent binaries inside the Kata Containers images provided with this release are statically linked with the following GNU LGPL-2.1 licensed libseccomp library.

• libseccomp

The kata-agent uses the libseccomp v2.5.5 which is not modified from the upstream version. However, in order to comply with the LGPL-2.1 (§6(a)), we attach the complete source code for the library.

If you want to use the kata-agent which is not statically linked with the library, you can build a custom kata-agent that does not use the library from sources.

Kata Containers builder images

The majority of the components of the project were built using containers. In order to do a step towards build reproducibility we publish those container images, and when those are used combined with the version of the projects listed as part of the "versions.yaml" file, users can get as close to the environment we used to build the release artefacts.

• agent (on all its different flavours): quay.io/kata-containers/builders:agent-65c32735e-f3bc6e415-x86_64
• Kernel (on all its different flavours): quay.io/kata-containers/builders:kernel-4fc34323a-x86_64
• OVMF (on all its different flavours): quay.io/kata-containers/builders:ovmf-6bb2ea819-x86_64
• QEMU (on all its different flavurs): quay.io/kata-containers/builders:qemu-0538bbfc4-x86_64
• shim-v2: quay.io/kata-containers/builders:shim-v2-go-1.19.3-rust-1.72.0-a13eecf7f-x86_64
• tools: quay.io/kata-containers/builders:tools-9b7bd376e-a5f0b92bc-bb4c608b3-x86_64
• virtiofsd: quay.io/kata-containers/builders:virtiofsd-1.72.0-musl-2205fb9d0-x86_64

The users who want to rebuild the tarballs using exactly the same images can simply use the following environment variables:

• AGENT_CONTAINER_BUILDER
• COCO_GUEST_COMPONENTS_CONTAINER_BUILDER
• KERNEL_CONTAINER_BUILDER
• OVMF_CONTAINER_BUILDER
• PAUSE_IMAGE_CONTAINER_BUILDER
• QEMU_CONTAINER_BUILDER
• SHIM_V2_CONTAINER_BUILDER
• TOOLS_CONTAINER_BUILDER
• VIRTIOFSD_CONTAINER_BUILDER

Installation

Follow the Kata installation instructions.

Issues & limitations

More information Limitations

What's Changed

• tests: k8s: Adapt k8s-sandbox-vcpus-allocation.bats to kubernetes v1.29 by @gkurz in https://github.com/kata-containers/kata-containers/pull/9179

Full Changelog: https://github.com/kata-containers/kata-containers/compare/4.0.0-test...4.1.0-test