High-level Architecture

1. High-level Architecture of a Production App

Info

• CI/CD - Continuous Integration and Continuous Deployment
• Load Balancer - Ensures user requests are evenly distributed between servers
  Example: Nginx
• Logging & Monitoring - Standard practice is to store logs on a separate server from the production server
  Examples: DataDog, Sentry, Prometheus
• Alert Server - Accumulates and sends out issue updates, either to users or developer Slack chats, to inform about issues.

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1.1. Investigation Process

Once developers are informed of an issue, follow these steps to investigate

1. Identify the issue in the logs
2. Use Pipelines to deploy to a safe environment and replicate the issue
   Never use production for this
3. Release a quick patch to get things working again

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