Getting Started#
Fly.io is a deployment platform that enables application deployment across a global network of edge-servers. It utilizes container-based deployment strategies and provides automated load balancing, SSL management, and horizontal scaling capabilities.
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Prerequisites#
Required components: - Terminal access - Git - Fly.io account - Application codebase - Docker installed locally (recommended)
CLI Installation#
The Fly CLI is the primary interface for managing deployments and resources.
MacOS#
brew install flyctl
Linux#
curl -L https://fly.io/install.sh | sh
Windows#
powershell -Command "iwr https://fly.io/install.ps1 -useb | iex"
Authentication#
Initialize CLI authentication:
fly auth login
This command initiates an OAuth flow in your default browser for account authentication.
Application Configuration#
Python/Flask Configuration#
Required files for Flask deployments:
FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install -r requirements.txt
COPY . .
ENV FLASK_APP=app.py
ENV FLASK_ENV=production
CMD ["gunicorn", "--bind", "0.0.0.0:8080", "app:app"]
flask
gunicorn
Node.js/NestJS Configuration#
Required files for NestJS deployments:
FROM node:16-slim
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build
CMD ["npm", "run", "start:prod"]
Deployment Process#
Initialize deployment configuration:
fly launch
This command executes the following operations:
Application name assignment
Framework/runtime detection
fly.toml configuration generation
Initial deployment setup
Deployment Configuration#
Standard fly.toml configuration file:
app = "application-name"
[build]
builder = "paketobuildpacks/builder:base"
[env]
PORT = "8080"
[http_service]
internal_port = 8080
force_https = true
[[services.ports]]
handlers = ["http"]
port = 80
[[services.ports]]
handlers = ["tls", "http"]
port = 443
Core CLI Commands#
Application Management:
# Deploy application updates
fly deploy
# Monitor application status
fly status
# Access application logs
fly logs
# Launch application in browser
fly open
# Configure application scaling
fly scale count 2 # Horizontal scaling to 2 instances
Best Practices#
Deployment Strategy - Initialize with minimal configuration - Implement incremental feature additions - Validate each deployment phase
Monitoring - Implement comprehensive logging - Monitor resource utilization - Track performance metrics
Security - Utilize fly secrets for sensitive data - Implement proper access controls - Regular security audits
Troubleshooting Protocol#
When encountering deployment issues:
Execute log analysis:
fly logs
Validate configuration integrity in fly.toml
Verify container functionality locally
Consult error-specific documentation
Advanced Configuration#
Post-deployment considerations: - Domain configuration and DNS management - SSL/TLS certificate implementation - Database integration and management - CI/CD pipeline integration - Scaling and performance optimization
Resource Management#
Key considerations for resource allocation: - CPU and memory allocation - Network bandwidth utilization - Storage requirements - Cost optimization strategies
For detailed specifications and advanced configurations, refer to the official Fly.io documentation or contact technical support through their official channels.
Links#
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