arm architecture support example

[Luca Capra]

Got snappy+docker solution working.

I packed a few steps in this repository to run snappy from qemu but network
still lack unfortunately (https://github.com/muka/qemu-snappy-experiments).


Best
Luca

2016-01-22 10:01 GMT+01:00 Luca Capra <luca.capra at gmail.com>:

> Thank you,
> this example is the "next step" after the environment setup
>
> Interesting either how you handle the arch in the structure and the
> startup script in the repo, will follow it for guidance!
>
> Best
> Luca
>
> 2016-01-22 9:49 GMT+01:00 Woodrow Shen <woodrow.shen at canonical.com>:
>
>> The another approach is still using cross compile to build any package
>> (with nodejs ?) what you want.
>> Then you need to follow snap format to put all necessary files (binary,
>> configs, or db) into fake-like rootfs.
>> For example, the structure can be as follows:
>>
>> ├── conf
>> │   └── defaults.ini
>> ├── magic-bin
>> │   ├── arm-linux-gnueabihf
>> │   ├── grafana
>> │   ├── start-service.sh
>> │   └── x86_64-linux-gnu
>> ├── meta
>> │   ├── grafana.apparmor
>> │   ├── grafana.seccomp
>> │   ├── icon.png
>> │   ├── package.yaml
>> │   └── readme.md
>> ├── usr
>> │   └── share
>> └── var
>>     └── log
>>
>> Make sure your package.yaml to contain all the snap information, and use
>> `snappy build </path-to-your-top-dir>` to generate a snap.
>>
>> Here is my snap for reference:
>> https://github.com/woodrow-shen/grafana-multi-snap
>>
>> Have snap fun!
>>
>> On Fri, Jan 22, 2016 at 4:32 PM, Luca Capra <luca.capra at gmail.com> wrote:
>>
>>> Ok, got it! I will try this way.
>>>
>>> Thank you,
>>> Luca
>>>
>>>
>>> 2016-01-22 9:22 GMT+01:00 Aiken Qi <aiken.qi at canonical.com>:
>>>
>>>> Steps
>>>> 1. install Snappy Ubuntu Core on RPi 2
>>>> https://developer.ubuntu.com/en/snappy/start/raspberry-pi-2/
>>>> 2. Install Docker app within your Snappy OS on RPi2
>>>> 3. Import docker image from docker hub, I was using this
>>>> https://hub.docker.com/r/ioft/armhf-ubuntu/
>>>> 4. Run Ubuntu Core as container, and you will have the arm ubuntu for
>>>> snappy development.
>>>>
>>>>
>>>> Regards,
>>>> Aiken Qi |Director Alliances PRC | Canonical Ltd | Beijing| China | +86
>>>> 13683072422
>>>>
>>>> On Fri, Jan 22, 2016 at 4:15 PM, Luca Capra <luca.capra at gmail.com>
>>>> wrote:
>>>>
>>>>> Thank you Aiken
>>>>> I'm not sure I've understood what you suggest, sorry :)
>>>>>
>>>>> Install ubuntu core on RPi and install docker on it to run an ubuntu
>>>>> arm where to run my build?
>>>>>
>>>>> Best
>>>>> Luca
>>>>>
>>>>> 2016-01-22 2:08 GMT+01:00 Aiken Qi <aiken.qi at canonical.com>:
>>>>>
>>>>>> Luca,
>>>>>>
>>>>>> Suggest you use docker on RPi snappy, and use Ubuntu core docker
>>>>>> image for armhf. It's quite straight forward for native compile.
>>>>>>
>>>>>> Regards
>>>>>> Aiken Qi
>>>>>> 13683072422
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Thu, Jan 21, 2016 at 8:41 AM -0800, "Luca Capra" <
>>>>>> luca.capra at gmail.com> wrote:
>>>>>>
>>>>>> Thank you Alexander,
>>>>>>> I will try to setup a qemu instance over armv7.. if feasibile.. and
>>>>>>> try to build from there.
>>>>>>>
>>>>>>> Best, Luca
>>>>>>>
>>>>>>> 2016-01-21 12:19 GMT+01:00 Alexander Sack <asac at canonical.com>:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> cross compilation of nodejs with snapcraft is tricky. If you
>>>>>>>> manually
>>>>>>>> build/assemble your stuff you can try the instructions on cross
>>>>>>>> compiling you can find on the web, but for snapcraft the best way is
>>>>>>>> to go for native building on your pi2...
>>>>>>>>
>>>>>>>> For snappy 15.04 you can get a developer ubuntu experience by using
>>>>>>>> lxd. For snappy 16.04 you can "sudo snappy enable-classic" mode and
>>>>>>>> then switch into a convenient ubuntu shell where you can apt-get
>>>>>>>> install etc. with "sudo snappy shell classic"
>>>>>>>>
>>>>>>>> My etherpad-lite snap builds nicely that way. See
>>>>>>>> https://github.com/asac/etherpad-lite/tree/snap-support/bin/snappy.
>>>>>>>> ..
>>>>>>>>
>>>>>>>>  - Alexander
>>>>>>>>
>>>>>>>> On Thu, Jan 21, 2016 at 12:07 PM, Luca Capra <luca.capra at gmail.com>
>>>>>>>> wrote:
>>>>>>>> > Hello,
>>>>>>>> >
>>>>>>>> > I've built a service snap out of a nodejs module and would like
>>>>>>>> to cross
>>>>>>>> > compile it to armv7 for RPi2
>>>>>>>> >
>>>>>>>> > At this page [1] there is a sample for go but it's unclear to me
>>>>>>>> what's the
>>>>>>>> > point of it (compile snappy for arm?)
>>>>>>>> >
>>>>>>>> > Do you have a suggestion/example on how to cross compile snap for
>>>>>>>> nodejs and
>>>>>>>> > handle compiled dependencies (like with node-gyp)?
>>>>>>>> >
>>>>>>>> > Thanks, Luca
>>>>>>>> >
>>>>>>>> > [1] https://developer.ubuntu.com/en/snappy/guides/cross-building/
>>>>>>>> >
>>>>>>>> > --
>>>>>>>> > snappy-app-devel mailing list
>>>>>>>> > snappy-app-devel at lists.ubuntu.com
>>>>>>>> > Modify settings or unsubscribe at:
>>>>>>>> > https://lists.ubuntu.com/mailman/listinfo/snappy-app-devel
>>>>>>>> >
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>>>
>>>
>>> --
>>> snappy-app-devel mailing list
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>>> Modify settings or unsubscribe at:
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>>>
>>>
>>
>>
>> --
>> Regards,
>> Woodrow
>>
>
>
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