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Overview

Docker Swarm is a container orchestration solution for deploying and scaling applications across numerous servers. Docker Swarm was chosen for this Full-Stack FastAPI and React Template project to make it easier to deploy frontend and backend components, as well as PostgreSQL database services, into a highly available, scalable environment.

Docker Swarm offers a lightweight orchestration solution that is simple to set up and operate, making it ideal for demo apps and smaller environments. Here are some of the primary advantages Docker Swarm provides to this project:

Why Simplified Scaling: Docker Swarm makes it easy to scale services by defining the number of replicas for components such as the FastAPI backend or the React frontend, which aids in load management and application performance.

Load Balancing: The built-in load balancing distributes incoming requests among available replicas, resulting in constant response times and service availability.

Declarative Service Deployment: Docker Swarm employs a syntax similar to Docker Compose, allowing you to describe the whole application stack in a single docker-compose.yml file. This file defines details such as service replicas, resource restrictions, and network parameters, making the infrastructure simple to deploy and replicate.

Fault Tolerance: Because Docker Swarm runs many replicas of services across nodes, it can withstand node failures by redistributing services to healthy nodes, resulting in high availability.

Secrets Management with HashiCorp Vault: This project improves security by using HashiCorp Vault to handle sensitive data, such as database credentials. Vault supports dynamic secrets, safe storage, and rotation of sensitive information, allowing the backend to access credentials without exposing them in plain text. By combining Vault and Docker Swarm, secrets may be safely managed and dynamically injected into services.