Go Application Deployment — Deploying Go Applications with Systemd, Docker, and Cloud Services

In this tutorial, you will learn about Go Application Deployment. We cover key concepts, practical examples, and best practices to help you master this topic.

Go deployment strategies include systemd service management, Docker multi-stage builds, and cloud deployment to Fly.io, Railway, and AWS Lambda.

What You'll Learn

• Systemd service setup
• Docker multi-stage builds
• Cloud deployment options
• Zero-downtime deployment

Why It Matters

Reliable deployment is essential. Docker ships as a single binary. Kubernetes controllers deploy as containers. DodaZIP deploys with systemd on bare metal.

Real-World Use

Production service deployment, container orchestration, Serverless functions, Edge Computing.

Systemd Service

[Unit]
Description=Go API Service
After=network.target

[Service]
Type=simple
User=app
WorkingDirectory=/opt/app
ExecStart=/opt/app/server
Restart=always
RestartSec=5
Environment=PORT=8080

[Install]
WantedBy=multi-user.target

Multi-Arch Build

# Build for multiple architectures
GOOS=linux GOARCH=amd64 go build -o app-linux-amd64 .
GOOS=linux GOARCH=arm64 go build -o app-linux-arm64 .
GOOS=darwin GOARCH=amd64 go build -o app-darwin-amd64 .

Fly.io Deployment

fly launch
fly deploy
fly scale count 3

Zero-Downtime

func main() {
    srv := &http.Server{Addr: ":8080"}
    go srv.ListenAndServe()

    sig := make(chan os.Signal, 1)
    signal.Notify(sig, syscall.SIGTERM)
    <-sig

    ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
    defer cancel()
    srv.Shutdown(ctx)
}