These changes have all merged and taken effect. Ironic and IPA gate jobs
are now operating as mentioned below, with one change; during review it
was decided to lower the amount of ram per node to 384mb instead of
512mb of RAM. This will ensure that we don't add additional bloat to
TinyIPA ramdisks without gate jobs indicating it via failure. If anyone
sees any strange behavior in the gate as a result, feel free to ping me
on IRC.
The remaining pending change is https://review.openstack.org/#/c/323994/
in order to enable similar changes for ironic-inspector jobs. Your
review attention on this is appreciated; it's a simple one word change.
Thanks to everyone's hard work on getting TinyIPA support working. This
is a big step towards making our CI work faster and use less resources.
Thanks,
Jay Faulkner (JayF)
OSIC
On 5/12/16 8:54 AM, Jay Faulkner wrote:
Hi all,
A change (https://review.openstack.org/#/c/313035/) to Ironic
devstack is in the gate, changing the default ironic-python-agent
(IPA) ramdisk from CoreOS to TinyIPA, and changing iPXE to default
enabled.
As part of the work to improve and speed up gate jobs, we determined
that using iPXE speeds up deployments and makes them more reliable by
using http to transfer ramdisks instead of tftp. Additionally,
the TinyIPA image, in development over the last few months, uses less
ram and is smaller, allowing faster transfers and more simultaneous
VMs to run in the gate.
In addition to changing the devstack default, there's also a patch up:
https://review.openstack.org/#/c/313800/ to change most Ironic jobs to
use iPXE and TinyIPA. This change will make IPA have voting check jobs
and tarball publishing jobs for supported ramdisks (CoreOS and
TinyIPA). Ironic (and any other projects other than IPA) will use the
publicly published tinyipa image.
In summary:
*- Devstack changes (merging now):*
**- Defaults to TinyIPA ramdisk
- Defaults to iPXE enabled
*- Gate changes (needs review at:
https://review.openstack.org/#/c/313800/ )*
- Ironic-Python-Agent
- Voting CoreOS + TinyIPA source (ramdisk built on the fly jobs)
- Ironic
- Change all jobs (except bash ramdisk pxe_ssh job) to TinyIPA
- Change all jobs but one to use iPXE
- Change all gate jobs to use 512mb of ram
If there are any questions or concerns, feel free to ask here or in
#openstack-ironic.
P.S. I welcome users of the DIB ramdisk to help make a job to run
against IPA. All supported ramdisks should be checked in IPA's gate to
avoid breakage as IPA is inherently dependent on its environment.
Thanks,
Jay Faulkner (JayF)
OSIC
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