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Create a dummy flatpak repository remote
This document describes how to create a local flatpak dummy repo. Just like the one contained in the files/repo.tar.gxz archive.
Create a hello world app
Prerequisites:
- flathub
Prepare the environment:
flatpak install --system flathub org.freedesktop.Platform//1.6 org.freedesktop.Sdk//1.6
Create a hello world executable:
echo $'#!/bin/sh\necho hello world' > hello.sh
To create dummy flatpaks, run this (defining a unique NUM for every flatpak to add):
export NUM=1
flatpak build-init appdir$NUM com.dummy.App$NUM org.freedesktop.Sdk org.freedesktop.Platform 1.6;
flatpak build appdir$NUM mkdir /app/bin;
flatpak build appdir$NUM install --mode=750 hello.sh /app/bin;
flatpak build-finish --command=hello.sh appdir$NUM
Create a repo and/or add the app to it
Create a repo and add the file to it in one command:
flatpak build-export repo appdir$NUM stable
Create flatpak*-files
Put a flatpakref file under the repo folder (repo/com.dummy.App1.flatpakref):
[Flatpak Ref]
Title=Dummy App$NUM
Name=com.dummy.App$NUM
Branch=stable
Url=file:///tmp/flatpak/repo
GPGKey={{ base64-encoded public KEY }}
IsRuntime=false
RuntimeRepo=https://flathub.org/repo/flathub.flatpakrepo
Add a .flatpakrepo file to the repo folder (repo/dummy-repo.flatpakrepo):
[Flatpak Repo]
Title=Dummy Repo
Url=file:///tmp/flatpak/repo
Comment=Dummy repo for ansible module integration testing
Description=Dummy repo for ansible module integration testing
GPGKey={{ base64-encoded public KEY }}
Sign the repo
Create a new key in a new gpg home folder (On RedHat systems, the executable needs to addressed as gpg2):
mkdir gpg
gpg --homedir gpg --quick-gen-key test@dummy.com
Sign the repo and summary file, you need to redo this when you update the repository:
flatpak build-sign repo --gpg-sign=KEY_ID --gpg-homedir=gpg
flatpak build-update-repo repo --gpg-sign=KEY_ID --gpg-homedir=gpg
Export the public key as a file:
gpg --homedir=gpg --export KEY_ID > dummy-repo.gpg
Create base64-encoded string from gpg-file for GPGKey= property in flatpak*-files:
base64 dummy-repo.gpg | tr -d '\n'
How to use the repo
Now you can add the repo folder as a local repo:
flatpak --system remote-add --gpg-import=/tmp/flatpak/repo/dummy-repo.gpg dummy-repo /tmp/flatpak/repo
Or, via .flatpakrepo file:
flatpak --system remote-add dummy-repo /tmp/flatpak/repo/dummy-repo.flatpakrepo
And install the hello world flatpaks like this:
flatpak --system install dummy-repo com.dummy.App$NUM
Or from flatpakref:
flatpak --system install --from /tmp/flatpak/repo/com.dummy.App$NUM.flatpakref
Run the app:
flatpak run com.dummy.App$NUM
To install an app without any runtime dependencies (the app will be broken, but it is enough to test flatpak installation):
flatpak --system install --no-deps dummy-repo com.dummy.App$NUM