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Kata Containers installation user guides

The following is an overview of the different installation methods available. All of these methods equally result in a system configured to run Kata Containers.

Prerequisites

Kata Containers requires nested virtualization or bare metal. See the hardware requirements to see if your system is capable of running Kata Containers.

Packaged installation methods

Notes:

  • Packaged installation methods uses your distribution's native package format (such as RPM or DEB).
Installation method Description Distributions supported
Automatic Run a single command to install a full system see table
Using snap Easy to install and automatic updates any distro that supports snapd
Using official distro packages Kata packages provided by Linux distributions official repositories see table
Scripted Generates an installation script which will result in a working system when executed see table
Manual Allows the user to read a brief document and execute the specified commands step-by-step see table

Supported Distributions

Kata is packaged by the Kata community for:

Distribution (link to installation guide) Versions
CentOS 7
Debian 9, 10
Fedora 28, 29, 30
openSUSE Leap (15, 15.1)
Tumbleweed
Red Hat Enterprise Linux (RHEL) 7
SUSE Linux Enterprise Server (SLES) SLES 12 SP3
Ubuntu 16.04, 18.04

Official packages

Kata packages are provided by official distribution repositories for:

Distribution (link to packages) Versions
openSUSE Tumbleweed

Automatic Installation

Use kata-manager to automatically install Kata packages.

Snap Installation

Get it from the Snap Store

Use snap to install Kata Containers from https://snapcraft.io.

Scripted Installation

Use kata-doc-to-script to generate installation scripts that can be reviewed before they are executed.

Manual Installation

Manual installation instructions are available for these distributions and document how to:

  1. Add the Kata Containers repository to your distro package manager, and import the packages signing key.
  2. Install the Kata Containers packages.
  3. Install a supported container manager.
  4. Configure the container manager to use kata-runtime as the default OCI runtime. Or, for Kata Containers 1.5.0 or above, configure the io.containerd.kata.v2 to be the runtime shim (see containerd runtime v2 (shim API) and How to use Kata Containers and CRI (containerd plugin) with Kubernetes).

Notes on upgrading:

  • If you are installing Kata Containers on a system that already has Clear Containers or runv installed, first read the upgrading document.

Notes on releases:

  • This download server hosts the Kata Containers packages built by OBS for all the supported architectures. Packages are available for the latest and stable releases (more info here).

  • The following guides apply to the latest Kata Containers release (a.k.a. master release).

  • When choosing a stable release, replace all master occurrences in the URLs with a stable-x.y version available on the download server.

Notes on packages source verification:

  • The Kata packages hosted on the download server are signed with GPG to ensure integrity and authenticity.

  • The public key used to sign packages is available at this link; the fingerprint is 9FDC0CB6 3708CF80 3696E2DC D0B37B82 6063F3ED.

  • Only trust the signing key and fingerprint listed in the previous bullet point. Do not disable GPG checks, otherwise packages source and authenticity is not guaranteed.

Build from source installation

Notes:

  • Power users who decide to build from sources should be aware of the implications of using an unpackaged system which will not be automatically updated as new releases are made available.

Building from sources allows power users who are comfortable building software from source to use the latest component versions. This is not recommended for normal users.

Installing on a Cloud Service Platform

Further information