ansible/test/integration/targets/setup_flatpak_remote/README.md
Alexander Bethke 8f354ea307 Use local dummy repo for flatpak_remote integration tests (#52668)
* Use local dummy repo for flatpak_remote integration tests

* Excludes versions of Ubuntu older than 16.04 from tests

Since there are no flatpak packages available for these Ubuntu versions

* Adds handler that removes temporary symlink
2019-03-19 17:16:26 -07:00

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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
```
## Sources:
* https://blogs.gnome.org/alexl/2017/02/10/maintaining-a-flatpak-repository/
* http://docs.flatpak.org/en/latest/first-build.html