![Snap Definition (package.yaml)
name: photoviewer
version: 0.1
vendor: Ted Gould <ted@canonical.com>
architecture: amd64
frameworks: [mir]
binaries:
- name: photoviewer
exec: qmlscene main.qml --
caps:
- mir_client
- network-client](https://image.slidesharecdn.com/snapyourapp-150824170756-lva1-app6891/85/Snap-Your-App-36-320.jpg)
Snap Your App
- 1. Snap your App! Ted Gould ted@canonical.com @tedjgould Texas Linux Fest 21 Aug 2015
- 2. The Plan ● Give instructions on getting Snappy installed ● Talk about Snappy ● Give instructions on downloading demo ● Talk about building apps for Snappy ● Build an app for Snappy
- 3. QEMU (Virtual Machine Manager) $ sudo apt-get install qemu-kvm ubuntu-virt- mgmt python-spice- client-gtk $ kvm-ok
- 4. Snappy Image $ wget http://releases.ubuntu.com/15.04/ubuntu- 15.04-snappy-amd64-generic.img.xz $ unxz ubuntu-15.04-snappy-amd64- generic.img.xz
- 5. Test It! $ kvm -m 512 -redir :8090::4200 -redir :8022::22 ubuntu-15.04-snappy- amd64-generic.img $ ssh -p 8022 ubuntu@localhost
- 8. Ubuntu ● Debian based (package format and policies) ● Regular Releases ● Updated via Apt
- 9. Ubuntu Phone ● Click Applications ● System Image Updates
- 11. Leaves are Simpler Single Dependency
- 14. Why Image Based Updates? ● Binary: Works or it doesn't ● Provides opportunity to rollback ● Simple testable states
- 15. — Us, acting cooler than we actually are “Let's Take Ubuntu Phone all the way to 11!”
- 16. Snappy Ubuntu Core ● Transactional Updates ● Snap based Apps ● Snap frameworks ● OS snap
- 17. App AppApp Framework Snappy Ubuntu CoreSnappy Ubuntu Core Hardware Abstraction App Gadget
- 18. Hardware Abstraction ● Provided by board vendors ● Allows for custom drivers and config
- 19. “Gadget” Snap ● Per-device configuration ● Snaps to install ● Permissions ● Branding
- 20. Framework Snaps ● Provide shared services ● Mediate resources ● IPC to Apps Mir System Compositor
- 21. Why snap? (not click) ● Click v2.0 ● Click only for leaf nodes ● Support for OS and framework snaps ● Lower level components
- 23. Trend: Internet of Things ● Smaller computers ● Internet connectivity ● Full OS resources ● Must be reliable
- 24. Trend: Consumer Devices ● More complex interactions ● Bullet-proof experience ● Complex security situations
- 25. Trend: Corporate/Education IT ● Verifiable Images ● Upgrades don't cause downtime ● Limited apps and app permissions
- 26. Trend: Cloud and Containers ● Small base OS (JeOS) ● Unit of specialized code ● Tested as a unit
- 27. Snappy Store
- 28. Store Story: Erle Robotics
- 32. Import into VMM $ sudo cp ubuntu-15.04-snappy-amd64-generic.img /var/lib/libvirt/images/ $ sudo chown libvirt-qemu.kvm /var/lib/libvirt/images/ubuntu-15.04-snappy-amd64- generic.img
- 34. $ ifconfig $ sudo snappy install docker $ sudo snappy install snapcraft-daily.ted $ snapcraft-daily.snapcraft help Install Snapcraft
- 35. What is a snap? ● A self-contained bundle ● Includes dependencies ● Works with frameworks You are here
- 36. Snap Definition (package.yaml) name: photoviewer version: 0.1 vendor: Ted Gould <ted@canonical.com> architecture: amd64 frameworks: [mir] binaries: - name: photoviewer exec: qmlscene main.qml -- caps: - mir_client - network-client
- 37. https://developer.ubuntu.com/en/snappy/guides/filesystem-layout/ Snap Directories
- 39. Block Inception
- 40. Snapcraft.yaml parts: qml: plugin: qml photoviewer: plugin: copy files: main.qml: main.qml PhotoViewerCore: PhotoViewerCore snappy-metadata: meta
- 41. Demo