Tau.Acuvim/portal

Tau Acuvim Portal

Customer-facing, white-labeled power monitoring portal. One stack per customer, deployed behind Traefik with the customer ID (lowercased — Docker Compose v2 requirement) as the container prefix: customer ABC0001 produces abc0001_portal, abc0001_grafana, abc0001_timescale.

This project lives next to console/ (internal management interface) and firmware/ (ESP32) in the same repo. The three projects share no code; the portal stands alone.

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Contents

1. Overview
2. Architecture
3. Configuration template
4. Local setup
5. Docker Compose
6. Database migrations
7. Accessing the app
8. Accessing Grafana
9. Default local test credentials
10. Production deployment notes
11. Security notes
12. Testing
13. Operations

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Overview

A customer signs in to their own branded portal, sees their meters' live + historical power readings via embedded Grafana dashboards, and (for admins) configures branding, municipality tariffs, users, sites, and devices. Each customer gets a fully isolated stack: their own database, their own Grafana, their own branding. Traefik routes <customer>.portal.example.com to the right containers.

Tech stack

Layer	Technology
Backend	.NET 10 minimal API, EF Core 10, Npgsql, ASP.NET Core Identity, Serilog
Frontend	React 18 + TypeScript + Vite, Ant Design 5, TanStack Query, react-router
Database	TimescaleDB 2.17 on PostgreSQL 16
Graphing	Grafana 11 (provisioned datasource + dashboards)
Container	Docker / Docker Compose; Traefik for routing
Auth	Cookie-based via ASP.NET Identity (SPA-friendly, 401/403 not redirects)

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Architecture

Containers, per customer

                ┌────────────────────────────────────────────────────┐
                │                    Traefik                         │
                │   host: <customer>.portal.example.com              │
                └────────────────────────────────────────────────────┘
        ┌─────────────────────────┬─────────────────────────┐
        ▼                         ▼                         ▼
┌───────────────────┐   ┌───────────────────┐   ┌───────────────────┐
│ <PREFIX>_portal   │   │ <PREFIX>_grafana  │   │<PREFIX>_timescale │
│ .NET API + SPA    │──▶│ Grafana 11        │──▶│ TimescaleDB + Pg16│
│ :8080             │   │ :3000             │   │ :5432             │
└───────────────────┘   └───────────────────┘   └───────────────────┘

<PREFIX> = the customer's 7-digit ID lowercased (e.g. abc0001 for customer ABC0001), set via COMPOSE_PROJECT_NAME. Compose v2 rejects uppercase project names.

Backend layout

• Combined container — Dockerfile builds the React SPA, then a multi-stage .NET build, then copies the SPA into wwwroot. One image, one process per customer.
• Single AppDbContext with three schemas:
  • identity — ASP.NET Identity tables.
  • app — branding, municipalities, tariffs, periods.
  • monitoring — sites, devices, power measurements (hypertable).
• Minimal API with endpoints grouped under Endpoints/*.cs. Services in Services/*.cs. Typed options in Configuration/.

Frontend layout

• src/pages/ — page-level components (DashboardsPage, SettingsPage, etc.).
• src/components/ — shared + feature components.
• src/api/ — typed axios calls.
• src/hooks/useAuth, useBranding — global state via Context.
• RequireAuth / RequireRole — route guards.
• AntD ConfigProvider is themed dynamically from BrandingProvider (white-labelling).

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Configuration template

All configurable values are declared in src/Tau.Acuvim.Portal/appsettings.template.json — checked in, no secrets. It's the lowest-priority configuration source: everything overrides it.

Precedence (lowest → highest)

1. appsettings.template.json — shippable defaults (always loaded).
2. appsettings.json — runtime infra (Serilog, AllowedHosts).
3. appsettings.{Environment}.json — per-environment overrides.
4. appsettings.Local.json — gitignored, your local overrides.
5. Environment variables — use __ as section separator (e.g. Authentication__DefaultAdminPassword=...). Production secrets go here.

Sections

Section	Purpose
Application	Name, environment, public URL
Database	Provider, connection string, MigrateOnStartup, AutoProvisionLocalTimescaleDb
TimescaleDb	Host/port/db/user/password for auto-provision in dev
Grafana	Base URL, internal URL, path prefix, embed mode, dashboard list
WhiteLabel	App name, logo URL, colours, footer, logo storage path
Authentication	Cookie name, lockout, default admin email/password
Monitoring	Hypertable chunk interval, aggregate flag

Database connection resolution

1. If Database:ConnectionString is non-empty → use it.
2. Else if Database:AutoProvisionLocalTimescaleDb=true AND env is not Production → build from the TimescaleDb:* block (Host/Port/Database/Username/Password).
3. Otherwise → app refuses to start with a clear error.

AutoProvisionLocalTimescaleDb=true in Production is a hard failure — production must supply its own connection string via env var or secret.

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Local setup

Prerequisites

• .NET 10 SDK
• Node 22+ / npm
• Docker Desktop
• dotnet-ef tool: dotnet tool install --global dotnet-ef

First-time: generate the initial migration

Identity / branding / rates / monitoring entities are defined in code; the migration files themselves are generated artifacts. Run once:

cd C:\AcuvimDev\Tau.Acuvim\portal
dotnet ef migrations add InitialCreate `
  --project src/Tau.Acuvim.Portal/Tau.Acuvim.Portal.csproj `
  --output-dir Migrations

Commit the resulting Migrations/ folder. From then on, MigrateAsync on startup applies whatever exists — no manual step at deploy time.

Option A: full stack in Docker (recommended)

cd C:\AcuvimDev\Tau.Acuvim\portal
Copy-Item .env.example .env
docker compose up --build -d
docker compose ps

Then:

• Portal: http://localhost:8080
• Grafana: http://localhost:3001 (anonymous Viewer in dev)
• TimescaleDB: localhost:5433 (user/db from .env)

Stop + wipe:

docker compose down -v

Option B: backend + DB in Docker, frontend via Vite

Same docker compose up, then in another terminal:

cd C:\AcuvimDev\Tau.Acuvim\portal\frontend
npm install
npm run dev

Vite serves at http://localhost:5174 and proxies /api + /health to the .NET container on :8080.

Option C: everything local (no Docker for the app)

Postgres still needs Docker (or a local install):

docker compose up -d timescaledb
cd C:\AcuvimDev\Tau.Acuvim\portal\src\Tau.Acuvim.Portal
dotnet run     # listens on :8080
# in another terminal
cd C:\AcuvimDev\Tau.Acuvim\portal\frontend
npm run dev    # :5174

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Docker Compose

Dev — docker-compose.yml

Three services: portal, timescaledb, grafana. Persistent named volumes (timescale-data, grafana-data, portal-keys, portal-branding). Healthcheck on Postgres; portal waits for healthy. Grafana ships with anonymous Viewer for easy local access; provisioned TimescaleDB datasource (uid: timescaledb) and any JSON dashboards under grafana/dashboards/.

Host port mappings: 8080→portal, 5433→timescaledb, 3001→grafana. Chosen to coexist with the console stack.

Prod — docker-compose.prod.yml

Same services, no host port mappings. Joins external traefik-public network. Per-customer Traefik labels (subdomain routing for portal, same-origin path-prefix routing for Grafana at /grafana). Grafana sub-path + GF_SERVER_ROOT_URL configured. All secrets via env vars.

Run:

docker network create traefik-public        # once on the host
docker compose -f docker-compose.prod.yml --env-file .env up -d

See OPERATIONS.md for the full per-customer deployment loop.

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Database migrations

MigrateAsync runs on startup (controlled by Database:MigrateOnStartup, default true). Immediately after, TimescaleBootstrapper runs an idempotent block:

1. CREATE EXTENSION IF NOT EXISTS timescaledb (defensive).
2. SELECT create_hypertable('monitoring."PowerMeasurements"', 'Time', if_not_exists => TRUE, migrate_data => TRUE).
3. SELECT set_chunk_time_interval('monitoring."PowerMeasurements"', INTERVAL '<MonitoringOptions.ChunkTimeInterval>').

Safe to re-run on every start.

Adding a new migration

When you change the entity model:

cd C:\AcuvimDev\Tau.Acuvim\portal
dotnet ef migrations add <DescriptiveName> `
  --project src/Tau.Acuvim.Portal/Tau.Acuvim.Portal.csproj `
  --output-dir Migrations

Commit. Next deploy applies it automatically.

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Accessing the app

Environment	URL
Local (Docker combined)	http://localhost:8080
Local (Vite dev)	http://localhost:5174
Production	https://<customer-host> (e.g. https://abc0001.portal.example.com)

API base path: /api. Swagger UI in dev: /swagger.

Health endpoints

• GET /health — liveness (process alive). Returns Healthy if the app responds.
• GET /health/ready — readiness. Returns Healthy only if TimescaleDB answers.

Nav surface

Page	Who sees it
Dashboard	Any authenticated user
Dashboards (embedded Grafana)	Any authenticated user
Sites	Admin only
Settings (Branding / Rates / Users / Grafana / App config)	Admin only

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Accessing Grafana

Local dev

• Direct: http://localhost:3001 — anonymous Viewer can browse provisioned dashboards. Admin/GRAFANA_ADMIN_PASSWORD for editing.
• Embedded: portal Dashboards page — iframe src points at the local Grafana base URL.

Production

• Direct browser access to <customer-host>/grafana/* is gated by your chosen auth mode (see Security notes). Anonymous is off in the prod compose.
• Embedded: portal Dashboards page — same-origin iframe via Traefik path prefix /grafana.

Provisioning

• Datasource: grafana/provisioning/datasources/timescaledb.yml (uid: timescaledb).
• Dashboard provider: grafana/provisioning/dashboards/dashboards.yml (auto-discovers JSON in grafana/dashboards/, refresh 30s).
• Starter dashboard: grafana/dashboards/power-overview.json — active power + cumulative energy + latest-power stat, parameterised by a device template variable.

To add a dashboard:

1. Drop the JSON into grafana/dashboards/.
2. Add an entry to Grafana.Dashboards in appsettings.template.json (or override in appsettings.Local.json) with the same Uid. The portal's Dashboards page picks it up after a refresh.

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Default local test credentials

Generated locally — change before publishing the stack to anyone.

• Email: admin@example.com
• Password: ChangeMe123!

Defined in appsettings.template.json → Authentication. The bootstrapper seeds this account only if no account with that email exists, and never overwrites a changed password.

Production guard: if ASPNETCORE_ENVIRONMENT=Production and the default password is still ChangeMe123!, the app refuses to start with an explicit error. Override Authentication__DefaultAdminPassword via env var before deploying.

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Production deployment notes

For the per-customer deployment loop see OPERATIONS.md. The short version:

1. One Compose project per customer. Set COMPOSE_PROJECT_NAME=abc0001 (lowercase form of the customer ID — Compose v2 rejects uppercase). Containers are named abc0001_portal, abc0001_grafana, abc0001_timescale.
2. One subdomain per customer. Set CUSTOMER_HOST=abc0001.portal.example.com. Wildcard DNS + wildcard TLS cert via Traefik's resolver (certresolver=le).
3. Decide your Grafana auth mode (see Security notes). The prod compose deliberately leaves Grafana auth off so the iframe refuses to load until you pick.
4. Set all secrets via env vars (not files):
   • POSTGRES_PASSWORD
   • GRAFANA_ADMIN_PASSWORD
   • Authentication__DefaultAdminPassword
5. External traefik-public Docker network must exist (created once on the host running Traefik).
6. Up the stack:

   docker compose -f docker-compose.prod.yml --env-file .env up -d
   

7. Verify the three containers report healthy and https://<customer-host>/health/ready returns Healthy.

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Security notes

What's protected by default

• ASP.NET Core Identity with lockout (5 failed attempts → 15 min) and strong password requirements (8+ chars, upper + lower + digit).
• Cookies are HttpOnly + SameSite=Lax + Secure in prod, scoped to the portal subdomain.
• Admin-only endpoints are gated by an AdminOnly policy (RequireRole("Admin")). Confirmed at backend; nav hidden on frontend.
• Cannot delete your own account — backend block, not just UI.
• GET /api/admin/config-overview is admin-only; the DTO never includes the connection string or any password. Redaction by construction, not filtering.
• Branding logo upload rejects files >2 MB and extensions outside {png, jpg, jpeg, svg, webp}.
• Anti-forgery is left on by default on cookie-authenticated endpoints; the logo upload explicitly opts out (multipart needs it disabled). Other admin endpoints accept JSON over same-site Lax cookies, which is CSRF-safe for state-changing same-origin SPA requests.
• Security headers (X-Content-Type-Options, X-Frame-Options: SAMEORIGIN, Referrer-Policy: strict-origin-when-cross-origin) on every response. HSTS in prod.

Production refuse-to-start guards

• App refuses to start in Production if Authentication:DefaultAdminPassword is still ChangeMe123!.
• App refuses to start in Production if Database:AutoProvisionLocalTimescaleDb=true (you must supply an explicit connection string).
• App refuses to start if no connection string can be resolved at all.

Grafana embedding — three production auth options

The dev compose runs Grafana with anonymous Viewer (safe on localhost). The prod compose has anonymous off and leaves the auth mode unset on purpose — pick one before publishing:

Option	What it does	Trade-off
(a) Traefik forwardAuth	Traefik middleware calls a portal /api/auth/check endpoint on every Grafana request; portal cookie required, else 401	Zero changes to Grafana. Best when "any portal user = same dashboards."
(b) Grafana auth.proxy	GF_AUTH_PROXY_ENABLED=true; trust an X-WEBAUTH-USER header set by Traefik	Maps portal user → Grafana user, gets per-user folders/perms. Sanitise the header — never let a client set it directly.
(c) Service-account API key + render tokens	Portal mints short-lived render tokens; SPA embeds via ?auth_token=...	Most moving parts. Right when dashboards are stitched into custom UI per-panel rather than full Grafana.

Until one is wired, prod-mode Grafana refuses anonymous access and the iframe shows a login page — the intended safe default.

Other considerations

• Same-origin embed (prod path-prefix routing through Traefik) sidesteps third-party-cookie blockers that increasingly break cross-origin Grafana iframes.
• Provisioned datasource is editable: false — admins cannot accidentally rewire Grafana from its UI.
• Default password complexity is tunable in Program.cs → IdentityOptions. Lockout is tunable in the same block.
• TimescaleDB licensing — we use Apache-licensed timescale/timescaledb:*-pg16. Stay on community features (hypertables, continuous aggregates) if you ever sell this as managed DBaaS.

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Testing

Backend unit tests under tests/Tau.Acuvim.Portal.Tests/ cover cost calculation, rate validation, connection-string resolution, day-of-week math:

cd C:\AcuvimDev\Tau.Acuvim\portal\tests\Tau.Acuvim.Portal.Tests
dotnet test

See TESTING.md for the full manual integration scenario, frontend test scaffolding recipe, and edge-case checklist.

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Operations

For per-customer provisioning, secret rotation, backups, and health monitoring see OPERATIONS.md.