==== Flatpak in AGL ====

In eg-app-fw meeting [[:eg-app-fw/meetings#september_8_2021|2021-09-08]] we demoed using Flatpak to run apps inside AGL demo platform. (Video at https://www.youtube.com/watch?v=nZCSvBNtmHQ)

Here is how to recreate the demo:

1. Set up AGL build environment following [[https://docs.automotivelinux.org/en/lamprey/#0_Getting_Started/2_Building_AGL_Image/0_Build_Process/|usual instructions]]. Use qemux86-64 target.

2. Check out branch [[https://git.automotivelinux.org/AGL/meta-agl-demo/log/?h=sandbox/samthursfield/flatpak-sdk|sandbox/samthursfield/flatpak-sdk]]

    cd meta-agl-demo
    git checkout sandbox/samthursfield/flatpak-sdk

2. Follow [[https://gitlab.com/CodethinkLabs/agl/meta-flatpak/-/blob/AGL/AGL.md|Flatpak in AGL]] guide to modify ''local.conf'' and ''bblayers.conf''.

3. Build the QEMU image containing ''flatpak'':

    bitbake agl-demo-platform
    # Output in tmp/deploy/images/qemux86-64/

4. Build the Flatpak SDK and runtime:

    bitbake agl-demo-platform-flatpak-runtime
    bitbake agl-demo-platform-flatpak-sdk
    # Output in ./agl-demo-platform-flatpak-runtime.flatpak/ and ./agl-demo-platform-flatpak-sdk.flatpak/

5. Run local web server to share runtime and SDK (using [[https://caddyserver.com/|caddy]] in this example):

    caddy file-server --listen :8000 --browse .
 
6. Build the Flatpak app using flatpak-builder

    git clone https://git.automotivelinux.org/apps/ondemandnavi/ --branch sandbox/samthursfield/flatpak
    cd ondemandnavi
    flatpak remote-add --user --no-gpg-verify local-agl http://localhost:8000/agl-demo-platform-flatpak-sdk.flatpak
    flatpak-builder --repo=../../qemux86-64/ondemandnavi.repo ./_build ./org.automotivelinux.apps.Navigation.yml --force-clean --install-deps-from=local-agl --user
    
7. Boot the AGL demo image in qemu and install the Flatpak app. Replace $HOSTNAME with the machine running the web server:

    flatpak remote-add agl-runtime http://$HOSTNAME:8000/agl-demo-platform-flatpak-runtime.repo/ --no-gpg-verify
    flatpak remote-add agl-app http://$HOSTNAME:8000/ondemandnavi.repo --no-gpg-verify
    flatpak install org.automotivelinux.apps.Navigation
    flatpak run --command=navigation org.automotivelinux.apps.Navigation