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How to Build an Internal Developer Platform in 2025

Internal developer platforms multiply engineering productivity. Learn how to build one using Gitea, n8n, Traefik, and Docker — without Backstage or...

Y
Yash Pritwani
13 min read

What Is an Internal Developer Platform?

An Internal Developer Platform (IDP) is the self-service layer between developers and infrastructure. Instead of filing tickets to deploy a service, developers push code and the platform handles everything.

API GatewayAuthServiceUserServiceOrderServicePaymentServiceMessage Bus / Events

Microservices architecture: independent services communicate through an API gateway and event bus.

The TechSaaS IDP Stack

At TechSaaS, we built an IDP using all open-source, self-hosted tools:

Source Control: Gitea

  • Self-hosted Git with GitHub-like UI
  • OIDC authentication via Authelia
  • Container registry for Docker images
  • Built-in CI/CD with Gitea Actions

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Automation: n8n

  • Visual workflow automation (400+ connectors)
  • Webhook-driven deployments
  • Slack/email notifications
  • Database backup verification

Reverse Proxy: Traefik v3

  • Automatic service discovery from Docker labels
  • SSL termination, rate limiting, auth middleware
  • Zero-config routing for new services

Code Editor: code-server

  • VS Code in the browser
  • Full terminal access
  • Works from any device (iPad, phone)
WebMobileIoTGatewayRate LimitAuthLoad BalanceTransformCacheService AService BService CDB / Cache

API gateway pattern: a single entry point handles auth, rate limiting, and routing to backend services.

Documentation: BookStack

  • Wiki-style documentation
  • OIDC authentication
  • Markdown support

Project Management: Plane

  • Open-source Jira alternative
  • Issues, sprints, kanban boards
  • Integrated with Gitea via webhooks

Monitoring: Grafana + Loki

  • Log aggregation across all containers
  • Custom dashboards
  • Alert rules for anomalies

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Developer Workflow

  1. Developer pushes code to Gitea
  2. Gitea Actions runs CI pipeline (lint, test, build, Trivy security scan)
  3. Docker image pushed to Gitea container registry
  4. CD pipeline deploys to production via Docker Compose
  5. Traefik automatically routes traffic
  6. Grafana monitors health metrics
  7. n8n sends deployment notification to Slack

Cost Comparison

Platform Monthly Cost
GitHub Enterprise + Jira + PagerDuty + Vercel $500-2000/month
TechSaaS Self-Hosted IDP $60-100/month
TriggerwebhookIfSend EmailSMTPLog EventdatabaseUpdate CRMAPI callDonetruefalse

Workflow automation: triggers, conditions, and actions chain together to eliminate manual processes.

Building Your Own

We offer IDP-as-a-Service: we design, deploy, and manage your internal developer platform on self-hosted or cloud infrastructure. Contact [email protected] for a free consultation.

#platform-engineering#idp#developer-experience#gitea

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