Knowledge Base — TIA DataHub

Welcome to the Knowledge Base for TIA DataHub, the internal platform hosting data, ETLs, and tooling used by our data teams.

---

---

This site provides concise operational documentation for all services, development workflows, and runbook-style procedures.
Use it to understand what runs where, why each service exists, and how to operate the stack.

---

At a glance — what DataHub provides

Service	Purpose / Use Case	Host	Port	URL	Persistence Path
TIA Portal	Launcher & dashboard for internal tools	this host	8080	http://:8080	none (bundled frontend)
Docs Portal	Technical documentation (this site)	this host	8005	http://:8005	repo: compose/docs/docs
Grafana	Dashboards & visualizations	this host	3000	http://:3000	/srv/datahub/grafana
Postgres	Relational DB for incidents & Airflow	this host	5432	n/a	/srv/datahub/postgres
Airflow	Workflow orchestration	this host	4444	http://:4444	/srv/datahub/airflow/{dags,logs,plugins}
Incidents	Report problems & DQM issues	this host	8090	http://:8090	uses Postgres
Transport	Realtime departures & widget	this host	8050	http://:8050	none
HenriXMaps	Static tower maps (nginx)	this host	8888	http://:8888	memory-bank/HenriXMaps
Excalidraw	Collaborative whiteboard (app + relay)	this host	various	see compose/excalidraw	optional room stores

Hosts

DEV: hubcub.ad.towers.at
PROD: hubdata.ad.towers.at

---

Quick links

• Grafana: http://:3000
• Airflow: http://:4444
• Incidents: http://:8090
• Docs Portal: http://:8005

---

Architecture (high level)

flowchart LR
  subgraph Frontend
    TIA["TIA Portal (UI)"]
    Docs["Docs Portal"]
  end

  TIA -->|links| Docs
  TIA -->|links| Inc["Incidents"]
  TIA -->|embeds| Transport

  Inc -->|writes to| DB[(Postgres)]
  Airflow -->|reads/writes| DB
  Grafana -->|queries| DB

  Transport -->|calls external APIs| External["External API"]
  HenriXMaps --> MapHTML["Static Map HTML"]