Dockerfile: Rebase on Flathub actions image

[ryonakano]

Fixes elementary/appcenter-reviews#644

[davidmhewitt]

Makes sense to me!

Any reason this is still in draft?

[ryonakano]

Thanks for review!

Any reason this is still in draft?

Because I haven't confirmed whether this really fixes the linked issue, i.e. whether the .metainfo file after appstreamcli compose contains the x-appcenter keys (and I'm not sure how to do this…… 🤔)

[davidmhewitt]

@ryonakano

You could run a shell inside the Docker container, and use the flatpak-builder in there to build a Flatpak with the metadata keys (you'd need to mount the app's git repo to the container). If you instruct flatpak-builder to export to a repo with:

flatpak-builder --repo=repo

After the build, it will have exported the appstream metadata. Check the commit ID on the appstream branch with:

less repo/refs/heads/appstream/x86_64

Once you have the commit ID, check it out with ostree:

sudo ostree checkout --repo repo ${COMMIT_ID}
zless ${COMMIT_ID}/appstream.xml.gz

Then you can check if the metadata is present in that appstream file.

[ryonakano]

Thank you very much, I can confirm the generated metadata contains x-appcenter keys using my forked flatpak-platform Docker image that already merged this branch into main:

bash-5.3# grep x-appcenter $COMMIT_ID/appstream.xml
      <value key="x-appcenter-color-primary">#603461</value>
      <value key="x-appcenter-color-primary-text">rgb(255, 255, 255)</value>
      <value key="x-appcenter-stripe">pk_live_Uhb96elhovWNRGkq07m2FRO9008Ia8OtVa</value>
      <value key="x-appcenter-suggested-price">10</value>
bash-5.3#

---

Just leaving a note what I did as a note. First I launched my forked Docker image:

$ docker run -it --privileged --name custom-key-test -v $PWD:/workdir ghcr.io/ryonakano/flatpak-platform/runtime:8-aarch64 bash

Then I run the following commands in the container:

# flatpak-builder --disable-rofiles-fuse --repo=repo --install-deps-from=appcenter --force-clean builddir elementary/com.github.phase1geo.minder.yml
# COMMIT_ID=$(cat repo/refs/heads/appstream/$(uname -m))
# ostree checkout --repo repo $COMMIT_ID
# gunzip --keep $COMMIT_ID/appstream.xml.gz
# grep x-appcenter $COMMIT_ID/appstream.xml

[davidmhewitt]

Thank you!