All-
Over the last several months, the members of the Networking Program have been
discussing ways to improve the management of our program. When the Quantum
project was initially launched, we envisioned a combined service that included
all things network related. This vision served us well in the early days as
the team mostly focused on building out layers 2 and 3; however, we’ve run into
growth challenges as the project started building out layers 4 through 7.
Initially, we thought that development would float across all layers of the
networking stack, but the reality is that the development concentrates around
either layer 2 and 3 or layers 4 through 7. In the last few cycles, we’ve also
discovered that these concentrations have different velocities and a single
core team forces one to match the other to the detriment of the one forced to
slow down.
Going forward we want to divide the Neutron repository into two separate
repositories lead by a common Networking PTL. The current mission of the
program will remain unchanged [1]. The split would be as follows:
Neutron (Layer 2 and 3)
- Provides REST service and technology agnostic abstractions for layer 2 and
layer 3 services.
Neutron Advanced Services Library (Layers 4 through 7)
- A python library which is co-released with Neutron
- The advance service library provides controllers that can be configured to
manage the abstractions for layer 4 through 7 services.
Mechanics of the split:
- Both repositories are members of the same program, so the specs repository
would continue to be shared during the Kilo cycle. The PTL and the drivers
team will retain approval responsibilities they now share.
- The split would occur around Kilo-1 (subject to coordination of the Infra and
Networking teams). The timing is designed to enable the proposed REST changes
to land around the time of the December development sprint.
- The core team for each repository will be determined and proposed by Kyle
Mestery for approval by the current core team.
- The Neutron Server and the Neutron Adv Services Library would be co-gated to
ensure that incompatibilities are not introduced.
- The Advance Service Library would be an optional dependency of Neutron, so
integrated cross-project checks would not be required to enable it during
testing.
- The split should not adversely impact operators and the Networking program
should maintain standard OpenStack compatibility and deprecation cycles.
This proposal to divide into two repositories achieved a strong consensus at
the recent Paris Design Summit and it does not conflict with the current
governance model or any proposals circulating as part of the ‘Big Tent’
discussion.
Kyle and mark
[1]
https://git.openstack.org/cgit/openstack/governance/plain/reference/programs.yaml
<https://git.openstack.org/cgit/openstack/governance/plain/reference/programs.yaml>
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