Fedora atomic DIB element defaults to building fedora atomic 24, which is broken

[Mark Goddard]

By default the fedora-atomic diskimage-builder element[1] provided by magnum builds a fedora-atomic 24 image. However, magnum does not support fedora-atomic 24 since the fix[2] for [3] was merged. This is due to the incompatibility between different versions of the flannel network driver configuration.

The fedora-atomic element should default to building a supported image.

[1] https://github.com/openstack/magnum/tree/907415c984e95e09a8b872f3c551ae6108c91de1/magnum/drivers/common/image/fedora-atomic
[2] https://review.openstack.org/#/c/417457/
[3] https://bugs.launchpad.net/magnum/+bug/1679301

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/476518

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/476518
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=f42e5fd7a345d950d0521fbbdebe891179bdd5a6
Submitter: Jenkins
Branch: master

commit f42e5fd7a345d950d0521fbbdebe891179bdd5a6
Author: Mark Goddard <email address hidden>
Date: Thu Jun 22 14:27:20 2017 +0100

    Use DIB_RELEASE to set fedora-atomic variable defaults

    When building a fedora atomic image using magnum's DIB element,
    setting the DIB_RELEASE environment variable does not affect the
    release of the fedora-atomic image built, even when
    FEDORA_ATOMIC_TREE_REF and FEDORA_ATOMIC_TREE_URL take their default
    values - fedora atomic 24 is always built.

    Further, fedora atomic 24 is not supported by magnum for kubernetes
    in newton onwards since the configuration of flannel was changed[1].

    This change uses the DIB_RELEASE variable to set the default values
    of FEDORA_ATOMIC_TREE_URL and FEDORA_ATOMIC_TREE_REF. This ensures
    that fedora atomic images have an expected release, and one that by
    default is supported by magnum (currently DIB_RELEASE defaults to 25
    in diskimage-builder).

    [1] https://bugs.launchpad.net/magnum/+bug/1679301

    Change-Id: I9e1c846657ac9e65e2cdd8d32c96cdbf85900ba0
    Closes-Bug: #1699766
    Closes-Bug: #1699765

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/magnum 5.0.0 release.