Well-structured architecture with only Open-source

I would challenge myself to have a good combined architecture with only open source. There are tons of good open-source out there even for enterprise applications. You can think of the licence-free architecture away from the commercial tools.

Let’s talk about the system. Now I’m trying to build the rest API backend and async messaging systems.

API Backend System

• Programming Language: Python
• Framework: Flask or Django
• Database: PostgreSQL or MySQL
• API Documentation: Swagger or ReDoc
• Authentication: OAuth2 or JWT
• Containerization: Docker
• Orchestration: Kubernetes
• API Gateway: Kong or Traefik

Async Messaging System

• Message Broker: Apache Kafka or RabbitMQ
• Messaging Protocol: AMQP or MQTT
• Streaming Framework: Apache Flink or Apache Spark (Kafka and Flink's combination is too beautiful to highlight more)
• Data Serialization: Avro or Protobuf
• Monitoring: Prometheus and Grafana

Additionally

• OS: Linux (CentOS)
• Virtualisation: Virtual Box, Multipass
• CICD: https://hevodata.com/learn/open-source-ci-cd-tools/ (GitLab, Jenkins)