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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1439706
Title:
FFE: Ubuntu FAN networking support (for linux, iproute2 and ubuntu-
fan)
Status in iproute2 package in Ubuntu:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
FFE general instructions:
The Ubuntu FAN networking support provides for additional addressing
within a "host" system. These addresses are "globally" accessible
within a related group of "host" systems, and would typically be
assigned to LXC containers or Docker instances running on that "host".
A typical use case for this would be to allow nested containers on a
cloud substrate, where the "host" systems would be guests in that
cloud. Each cloud "host" instance would be able to express multiple
addresses to other instances on the same substrate simplifying
deployment.
The changes consist of fixes for the linux (kernel) and iproute2
packages, as well as a new ubunt-fan package. The support is
completely disabled unless the guest opts in. Installation of the
ubuntu-fan package, and configuration of it via /etc/default/ubuntu-
fan is required before the functionality is expressed.
These changes are proposed to allow simpler deployment and addressing
of LXC containers and Docker instances on any substrate in a
consistent manner without needing cooperation of buy in from that
substrate, simply having single instance addresses on that substrate
is sufficient. This should be a strong enabler for Ubuntu on those
platforms.
Additional FFE instructions for linux:
The changes for linux add a new IPIP tunnel routing mode which uses a
direct address mapping (destination subnet to destination local IP
address) allowing a single configuration per node to configure the
entire fan network. No existing functionality is changed, and this
new mode must be explicitly requested when configuring (via iproute2
see below).
The patches have been applied and the resulting package uploaded to a
testing PPA: ppa:~apw/ubuntu/fan.
Testing is described below.
Additional FFE instructions for iproute2:
The changes for iproute2 add support for enabling the above IPIP
routing mode, and for displaying it once configured. No existing
functionality is changed. There is a small risk that the interface
chosen could be reused by upstream, but as it is fan specific that is
unlikely.
The patches have been applied and the resulting package uploaded to a
testing PPA: ppa:~apw/ubuntu/fan.
Testing is described below.
Additional FFE instructions for new ubuntu-fan package:
The new ubuntu-fan package enables the fan functionality by
configuring a new tunnel configured in Ubuntu FAN mode, and a new
bridge which is used to connect consumers to it. Typically this
bridge is then used as the host bridge for LXC containers or Docker
instances. Additionally a dnsmasq is connected to the bridge to hand
out addresses in the host specific range as if they themselves were on
the wider network.
The source package is uploaded to the PPA: ppa:~apw/ubuntu/fan as
ubuntu-fan and represents the master source for this package.
Testing of this combination:
The above has been tested in combination from the testing PPA:
ppa:~apw/ubuntu/fan. These have been tested both locally and on AWS,
it has been successfully tested with both LXC containers and Docker
instances.
===
Using the above instructions/checklist, lets draft the FFE
below...Once we are happy with it let's delete the notes above and we
can subscribe ubuntu-release.
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