Support Matrix

Supported Operating Systems

Kolla Ansible supports the following host Operating Systems (OS):


CentOS 7 is no longer supported as a host OS. The Train release supports both CentOS 7 and 8, and provides a route for migration. See the Kolla Ansible Train documentation for information on migrating to CentOS 8.

  • CentOS 8

  • Debian Buster (10)

  • RHEL 8

  • Ubuntu Bionic (18.04)

Supported container images

For best results, the base container image distribution should match the host OS distribution. The following values are supported for kolla_base_distro:

  • centos

  • debian

  • rhel

  • ubuntu

For details of which images are supported on which distributions, see the Kolla support matrix.