Tech Stack and Requirements

Software versions and infrastructure needed to run the Sunbird RC registry.

Architecture diagram

Tech stack

Software / language	Recommended	Minimum version
Java	11	11
Go	1.25.0	1.25.0
Linux	24.04 LTS	22.04 LTS
Docker	29.8.1	25.0.0
PostgreSQL	18.6	14
Redis	8.8.3	7.4.9
Elasticsearch	6.8.23	6.8.23
Keycloak	14.0.0	14.0.0
MinIO	RELEASE.2025-10-15T17-29-55Z	RELEASE.2025-10-15T17-29-55Z
Kafka (Zookeeper)	7.9.6	7.9.6
nginx	1.30.4	1.30.0
Angular	10	10
Kubernetes	1.37.0	1.35.0
Helm	4.2.4	4.0.0
Docker Compose	5.5.1	2.0.0

Stock frontend interface

Angular 10

Deployment

• Local machine: Docker is recommended.

• Development: A single VM with Docker will work. See Getting started for setup steps.

• Production: Kubernetes is recommended. See the typical requirements below.

Typical production requirements

Component	Nodes	Specification
UI (backed by CDN)	1 (small)	2 core, 4 GB RAM minimum
Kubernetes cluster	3	4 core, 8 GB RAM, 200 GB storage
PostgreSQL	2	4 core, 8 GB RAM, 500 GB storage
Elasticsearch (if needed)	1	4 core, 8 GB RAM, 200 GB storage
Load balancer	—	Based on cloud provider