flat-manager serves and maintains a Flatpak repository. You point it at an ostree repository and it will allow Flatpak clients to install apps from the repository over HTTP. Additionally, it has an HTTP API that lets you upload new builds and manage the repository.
Building the server
The server is written in Rust, so you need to have Rust and Cargo installed. Everything works with the stable version of Rust, so you can get it from rustup or your distribution. On Fedora:
sudo dnf install cargo
PostgreSQL is used for the database, so the Postgres client libraries need to be installed first. On Fedora, this is done with:
sudo dnf install postgresql-devel
Then build the server by running:
Building the client
flat-manager contains a Python-based client that can be used to talk to the server. To run this, you need Python 3 as well as the aiohttp packages, installed via pip or the distribution packages. On Fedora, this can be installed using:
sudo dnf install python3-aiohttp
flat-manager reads the
config.json file on startup in the
current directory, although the
REPO_CONFIG environment variable
can be set to a different file. If you have a
.env file in the
current directory or one of its parents, it will be read and used
to initialize environment variables.
The source repository contains an
example.env and an
example-config.json that can be used as a basis:
cp example.env .env cp example-config.json config.json # edit config.json
flat-manager uses a PostgreSQL database to store information, and
requires you to specify its address in the configuration file.
example-config.json points this at:
This is a database called
repo accessed via the default (at
least on Fedora) UNIX domain socket. To install and start
PostgreSQL, do something like:
sudo dnf install postgresql-server postgresql-contrib sudo systemctl enable postgresql sudo postgresql-setup --initdb --unit postgresql sudo systemctl start postgresql
On Debian-based systems:
sudo apt install postgresql
And create the
repo database owned by your user:
sudo -u postgres createuser $(whoami) sudo -u postgres createdb --owner=$(whoami) repo
Note that if you're doing development work, it is important to also
DATABASE_URL=... set in the
.env file for the Diesel
command-line application to work. This is not required in production
flat-manager maintains a set of repositories specified in the
configuration, as well as a set of dynamically generated repositories
beneath the configured
build-repo-base path. For testing with
the example configuration, these can be initialized by doing:
ostree --repo=repo init --mode=archive-z2 ostree --repo=beta-repo init --mode=archive-z2 mkdir build-repo
On a deployed system, these should be stored elsewhere, but make sure they are on the same filesystem so that hardlinks work between them as otherwise performance will be degraded.
All requests to the API require a token. Token are signed with a secret that has to be stored on the server. The default configuration contains:
This is base64 of "secret", so don't use this in production, but it works for local testing. Otherwise, you can generate one based on some random data:
dd bs=256 count=1 if=/dev/random of=/dev/stdout | base64 -w 0
Each token can have various levels of privileges. For example one could let you do everything, while another would only allow you to upload builds to a particular build. There is an API to subset your token for sharing with others (for example sending the above upload-only token to a builder), but you can also generate a token with the gentoken command:
echo -n "secret" | base64 | cargo run --bin gentoken -- --base64 --secret-file - --name testtoken
The above matches the default secret, so can be used for testing.
The client takes tokens via either the
--token argument or in the
REPO_TOKEN environment variable.
To start the server, run:
cargo run --bin flat-manager
It will listen on port 8080 by default.
To test adding something to the repository, you can try building a simple app and exporting it to a repository. Use a recent version of flatpak and flatpak-builer to make sure you can build from Yaml files. This would normally happen on a different machine than the one serving the repository, but for testing we can just do it in a subdirectory:
mkdir test-build cd test-build wget https://raw.githubusercontent.com/flathub/org.gnome.eog/master/org.gnome.eog.yml flatpak-builder --install-deps-from=flathub --repo=local-repo builddir org.gnome.eog.yml cd ..
Then we can upload it to the repository by doing (assuming the default secret):
export REPO_TOKEN=$(echo -n "secret" | base64 | cargo run --bin gentoken -- --base64 --secret-file - --name test) ./flat-manager-client push --commit $(./flat-manager-client create http://127.0.0.1:8080 stable) test-build/local-repo
This will create a new "build", upload the build to it and then "commit" the build.
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.