Snappy on OpenSwitch

Simon Fels simon.fels at canonical.com
Mon Sep 5 16:21:19 UTC 2016


Hey Mike,

>> I'm very interested in adding Snappy support to OpenSwitch
>> (www.openswitch.net <http://www.openswitch.net/>).
>>
>> OpenSwitch is a Network Operating System for network switches build upon
>> OpenEmbedded/Yocto/Poky.
> 
> Pretty nice idea!
> 
>> I'm using a branch of OpenSwitch in which they've upgraded to Yocto 2.1
>> - https://github.com/open-switch/ops-build
>> <https://git.openswitch.net/openswitch/ops-build> branch
>> "feature/yocto_2.1".
>>
>> I've added meta-snappy to the bblayers.conf file used to build
>> OpenSwitch and I was able to successfully 'bitbake snappy-demo-image' so
>> that I at least know your meta-snappy layer is compatible with the
>> OpenSwitch layers.
>>
>> My knowledge of OE/bitbake is limited and I'm hoping someone could
>> provide some pointers or guidance to integrating Snappy onto an existing
>> OE/Yocto distribution such as OpenSwitch.
> 
> You already did the first step and verified the build of the relevant
> components (snapd and snap-confine) works well in OpenSwitch.
> 
> The next step is to get the different config options for the kernel into
> your kernel defconfig. We have various sample kernel trees at [1] which
> you can use as reference. In meta-snappy I extended the default
> linux-yocto defconfig with the bits listed in [2]. I suspect OpenSwitch
> may use a different kernel tree so you have to apply the different
> options for it as well. You don't need any AppArmor related patches if
> you want just unconfined snaps working for a first step.
> 
> As next thing you have to add snapd and snap-confine to the content of
> the OpenSwitch image. Adding snap-confine and snapd in [3] is ok to get
> it things working. Later you want to add a packagegroup especially for
> snappy which I am planing to add to meta-snappy which then will
> automatically pull in all necessary dependencies for you.
> 
> Once that is done you should be able to build a regular OpenSwitch
> image, flash it on a device or boot it in an emulator and should have
> snapd running and being able to install snaps and run their applications.
> 
> If you need further help or have questions, just ask here or ping me
> (nick morphis) on IRC in #snappy on FreeNode.

You already had a chance to try my suggestions?

regards,
Simon





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