flux

Flux

Flux is a lightweight self-hosted pseudo-PaaS for hosting Golang web apps with ease. Built on top of Buildpacks and Docker, Flux simplifies the deployment process with a focus on similicity, speed, and reliability.

Features

• Blue-Green Deployments: Deploy new versions of your app without downtime
• Simplify Deployment: Flux takes care of the deployment process, so you can focus on writing your app
• Flexible Configuration: Easily configure your app with flux.json
• Automatic Container Management: Steamline your app with automatic container management

Dependencies

• Go
• ZQDGR
• Buildpacks (daemon only)
• Docker (daemon only)

Intallation

Daemon

To install and start the Flux daemon using ZQDGR, run the following command:

[!IMPORTANT] CGO is required to build the daemon due to the use of mattn/go-sqlite3

Method 1: ZQDGR

go install github.com/juls0730/zqdgr@latest

git clone https://github.com/juls0730/flux.git
cd flux

# either
zqdgr build:daemon
sudo ./fluxd

# or
FLUXD_ROOT_DIR=$PWD/fluxdd zqdgr run:daemon

Method 2: Docker

docker run -d --name fluxd --network host -v /var/run/docker.sock:/var/run/docker.sock -v fluxd-data:/var/fluxd -p 5647:5647 -p 7465:7465 zoeissleeping/fluxd:latest

Method 3: Systemd

go install github.com/juls0730/zqdgr@latest

git clone https://github.com/juls0730/flux.git
cd flux

zqdgr build:daemon
sudo mv fluxd /usr/local/bin/

cat <<EOF
[Unit]
Description=Flux Daemon
After=network.target

[Service]
ExecStart=/usr/local/bin/fluxd
Restart=always
Environment=GOPATH=/var/fluxd/go
Environment=HOME=/var/fluxd/home

[Install]
WantedBy=multi-user.target
EOF | sudo tee /etc/systemd/system/fluxd.service

sudo systemctl daemon-reload
sudo systemctl enable --now fluxd

CLI

Install the CLI using the following command:

go install github.com/juls0730/flux/cmd/flux@latest

Configuration

Daemon

Flux daemon looks for a confgiuration file in /var/fluxd/config.json but can be configured by setting $FLUXD_ROOT_DIR to the directory where you want all fluxd files to be stored.

{
  "builder": "paketobuildpacks/builder-jammy-tiny"
}

• builder: The buildpack builder to use (default: paketobuildpacks/builder-jammy-tiny)

Daemon Settings

• Default port: 5647 (Daemon server)
• Reverse Proxy Port: 7465 (configurable via FLUXD_PROXY_PORT environment variable)

CLI

The CLI looks for a configuration file in ~/.config/flux/config.json:

{
  "daemon_url": "http://127.0.0.1:5647"
}

• daemon_url: The URL of the daemon to connect to (default: http://127.0.0.1:5647)

Commands

Flux <command>

Available commands:

• init: Initialize a new project
• deploy: Deploy an application
• start: Start an application
• stop: Stop an application
• delete: Delete an application
• list: View application logs

Project Configuration (flux.json)

flux.json is the configuration file in the root of your proejct that defines deployment settings:

{
  "name": "my-app",
  "url": "myapp.example.com",
  "port": 8080,
  "env_file": ".env",
  "environment": ["DEBUG=true"]
}

Configuration Options

• name: The name of the project
• url: Domain for the application
• port: Web server's listening port
• env_file: Path to environment variable file
• environment: Additional environment variables

Deployment Notes

• After deploying an app, point your domain to the Flux reverse proxy
• Ensure the Host header is sent with your requests

Contributing

Found a bug, or have something you think would make Flux better? Submit an issue or pull request.

License

Flux is licensed with the MIT license