scadaproj

Umbrella workspace for a family of related SCADA / OT (operational-technology) projects built around AVEVA System Platform (Wonderware), OPC UA, and Akka.NET.

This repository is part index — a map of the sister projects, which are their own repositories — and part home for cross-project normalization work and the shared code it produces.

Working in here with Claude Code? See CLAUDE.md for the machine-oriented index and guidance. This README is the human-facing overview.

What's in here

Path	What it is
CLAUDE.md	High-level index of the sister projects + working guidance
components/	Component-normalization framework (per concern: target spec, current state, gaps) — 7 components
docs/plans/	Implementation + design plans (incl. Galaxy Repository and LocalDb, which have no components/ entry)
infra/glauth/	The shared GLAuth every app's dev/test LDAP points at (10.100.0.35:3893)
ZB.MOM.WW.Auth/	Built shared library (.NET 10) — login / identity / API keys
ZB.MOM.WW.Theme/	Built shared RCL (.NET 10) — Technical-Light design system
ZB.MOM.WW.Audit/	Built shared library — canonical audit event + writer seam
ZB.MOM.WW.Health/	Built shared library — readiness / liveness / active-node probes
ZB.MOM.WW.Telemetry/	Built shared library — OTel metrics / traces + Serilog
ZB.MOM.WW.Configuration/	Built shared library — options validation + startup preflight
ZB.MOM.WW.Secrets/	Built shared library — AES-256-GCM secret store + ${secret:} resolution + CLI + SQL-Server / Akka cluster replication
ZB.MOM.WW.GalaxyRepository/	Built shared library — Galaxy object-hierarchy SQL browse + gRPC service
ZB.MOM.WW.LocalDb/	Built shared library — embedded SQLite cache + 2-node gRPC replication

The sister projects

Independent repositories, coupled only at runtime over wire protocols (gRPC + OPC UA) — not by a shared build. scadaproj indexes them; it does not contain them.

• OtOpcUa (lmxopcua) — OPC UA server (.NET 10) that republishes Wonderware Galaxy tags as an OPC UA address space.
• MxAccessGateway (mxaccessgw) — gRPC gateway giving modern x64 / .NET-10 clients full MXAccess parity without loading 32-bit COM. The linchpin both others depend on.
• ScadaBridge — distributed SCADA platform on Akka.NET (hub-and-spoke: one central cluster
  • N site clusters); its Data Connection Layer ingests OPC UA and MxAccess.
• HistorianGateway (historiangw) — gRPC sidecar over the AVEVA Historian (read/write) plus read-only Galaxy browse; no COM, no x86 worker. OtOpcUa's sole historian backend.

Data flow:

Wonderware Galaxy ──gRPC──▶ mxaccessgw ──▶ OtOpcUa (republishes as OPC UA) ─┐
                                       └────────────────────────────────────┴─▶ ScadaBridge clusters
                                          (or ScadaBridge's MxGateway adapter, direct)

Full relationship map: CLAUDE.md.

Component normalization

The sister repos kept re-implementing the same cross-cutting concerns and drifting apart. components/ captures, per component, the one target spec, each project's code-verified current state, and a gaps / adoption backlog. Convention + workflow in components/README.md.

Status verified 2026-07-18 against the feed + consumer branches (see Roadmap). "All four" = OtOpcUa, MxAccessGateway, ScadaBridge, HistorianGateway.

Component	Feed	Adoption	Folder
Auth (login / identity / authz)	0.1.0–0.1.5	mxaccessgw / ScadaBridge / HistorianGateway @ 0.1.5; OtOpcUa @ 0.1.1	components/auth/
UI Theme (layout / tokens / components)	0.2.0–0.3.1	all four @ 0.3.1	components/ui-theme/
Audit (event model + writer seam)	0.1.0	all four (DEEP)	components/audit/
Config + validation	0.1.0	all four	components/configuration/
Observability (metrics / traces / logs)	0.1.0	all four	components/observability/
Health (readiness / liveness / active-node)	0.1.0	all four	components/health/
Secrets (encrypted store + ${secret:})	0.1.0–0.2.0	all four @ 0.1.2 (0.1.3/0.2.0 published, not yet consumed)	components/secrets/
Galaxy Repository (SQL browse + gRPC)	0.1.0, 0.2.0	HistorianGateway + mxaccessgw	(design in docs/plans/)
LocalDb (embedded cache + 2-node sync)	0.1.0	none yet	(design in docs/plans/)

ZB.MOM.WW.Theme — the shared UI kit

The UI-theme component, realized as a single-package .NET 10 Razor Class Library that replaced each app's copy-pasted Technical-Light design system. Adopted by all four apps, currently on 0.3.1 (feed carries 0.2.0–0.3.1); adoption history in components/ui-theme/GAPS.md.

Asset / Component	Purpose	Used by
_content/ZB.MOM.WW.Theme/css/theme.css	Design tokens, IBM Plex typography, Bootstrap overrides	all
_content/ZB.MOM.WW.Theme/css/layout.css	Side-rail shell layout, nav CSS, chip/card helpers	all
_content/ZB.MOM.WW.Theme/fonts/*.woff2	IBM Plex Sans 400/600 + Mono 500, vendored	all
ThemeHead, ThemeShell, BrandBar	Shell entry point and chassis components	all
NavRailItem, NavRailSection	Rail nav components	all
StatusPill (StatusState)	Inline status chip — replaces per-app StatusBadge	all
LoginCard	Static form-POST sign-in card	OtOpcUa, ScadaBridge (MxGateway when login page added)
TechButton, TechCard, TechField	Common controls (Bootstrap 5 wrappers)	all

Consumer matrix: all four apps consume the single ZB.MOM.WW.Theme package — OtOpcUa AdminUI, MxAccessGateway Server, ScadaBridge Host + CentralUI, HistorianGateway Server.

Build & test

cd ZB.MOM.WW.Theme
dotnet build -c Release   # 0 warnings (TreatWarningsAsErrors)
dotnet test               # 48 bUnit tests (verified 2026-07-18)
./build/pack.sh           # → ./artifacts/ZB.MOM.WW.Theme.<version>.nupkg (feed is at 0.3.1)

Stack: .NET 10 · Razor Class Library · bUnit · xUnit · central package management. More detail: ZB.MOM.WW.Theme/README.md.

---

ZB.MOM.WW.Auth — the shared library

The auth component, realized as a four-package .NET 10 library that replaced each app's re-implemented authentication. Adopted by all four apps — pins drift deliberately (OtOpcUa 0.1.1, ScadaBridge 0.1.3, MxAccessGateway + HistorianGateway 0.1.4); history in components/auth/GAPS.md.

Package	Purpose	Used by
ZB.MOM.WW.Auth.Abstractions	Contracts, CanonicalRole, API-key types (zero deps)	all
ZB.MOM.WW.Auth.Ldap	Bind-then-search LDAP authentication (fail-closed)	all
ZB.MOM.WW.Auth.ApiKeys	Peppered-HMAC API keys + SQLite store + verifier + admin commands	MxAccessGateway, ScadaBridge
ZB.MOM.WW.Auth.AspNetCore	Canonical claim types, cookie defaults, LDAP DI helpers	all (web UIs)

Consumer matrix: OtOpcUa → Abstractions + Ldap + AspNetCore (no ApiKeys / SQLite); MxAccessGateway, ScadaBridge & HistorianGateway → all four packages.

Identity (LDAP / GLAuth, the canonical role set) is normalized; each app keeps its own authorization enforcement (OPC-UA permissions / gRPC scopes / roles + site-scoping) and maps it onto the canonical roles. Design: components/auth/spec/SPEC.md and CANONICAL-ROLES.md.

Build & test

cd ZB.MOM.WW.Auth
dotnet build -c Release                 # 0 warnings
dotnet test                             # 215 passing, 1 skipped (opt-in LDAP integration test) — verified 2026-07-18
dotnet pack  -c Release -o ./artifacts  # → 4 nupkgs (feed is at 0.1.4)

Stack: .NET 10 · xUnit · Novell.Directory.Ldap.NETStandard · Microsoft.Data.Sqlite · central package management. The packages are libraries linked into each consumer — there is no central auth service. More detail: ZB.MOM.WW.Auth/README.md.

The optional LDAP integration test is opt-in:

ZB_LDAP_IT=1 dotnet test   # requires a reachable GLAuth (e.g. a sister repo's infra/glauth)

Roadmap

Verified 2026-07-18 against the Gitea feed (nuget/query?q=ZB.MOM.WW) and the actual PackageReferences on each consumer's default branch — not from status claims in docs. Per-component detail in each components/<name>/GAPS.md.

Shipped

• ✅ Auth normalized + ZB.MOM.WW.Auth built (feed: 0.1.0–0.1.5) and adopted by all four apps. 0.1.5 (2026-07-18) pins patched SQLitePCLRaw; mxaccessgw, ScadaBridge and HistorianGateway bumped to it. OtOpcUa stays at 0.1.1 — it takes no ApiKeys/SQLite dependency, so it was never exposed.
• ✅ UI Theme normalized + ZB.MOM.WW.Theme built (feed: 0.2.0–0.3.1); all four apps on 0.3.1.
• ✅ Audit — ZB.MOM.WW.Audit 0.1.0 on the feed; adopted by all four (DEEP: canonical record everywhere).
• ✅ Configuration — ZB.MOM.WW.Configuration 0.1.0 on the feed; adopted by all four.
• ✅ Observability — ZB.MOM.WW.Telemetry + .Serilog 0.1.0 on the feed; adopted by all four.
• ✅ Health — ZB.MOM.WW.Health (+ .Akka, .EntityFrameworkCore) 0.1.0 on the feed; adopted by all four (MapZbHealth wired in each; previously documented as "not yet adopted" — that was stale).
• ✅ Galaxy Repository — ZB.MOM.WW.GalaxyRepository 0.2.0 on the feed; consumed by HistorianGateway and mxaccessgw (which wires AddZbGalaxyRepository in its Server; previously documented as a pending follow-on — also stale).
• ✅ Secrets — ZB.MOM.WW.Secrets (+ .Abstractions, .Ui) published through 0.1.3 (KEK rotation, 2026-07-18); all four apps still pinned at 0.1.2.
• ✅ Secrets G-7 clustered replication — built 2026-07-18 at 0.2.0, both fork options: ZB.MOM.WW.Secrets.Replicator.SqlServer (shared store and local-plus-hub) and ZB.MOM.WW.Secrets.Replicator.AkkaDotNet (peer-to-peer, partition-tolerant). Verified against a real SQL Server 2022 and an in-process 2-node Akka cluster. Published to the feed 2026-07-18 (restore-verified).
• ✅ LocalDb — ZB.MOM.WW.LocalDb (+ .Contracts, .Replication) built at 0.1.0 and published to the feed 2026-07-18 (restore-verified from a scratch consumer).

Open

• ⬜ Adopt a clustered secrets topology in ScadaBridge / OtOpcUa — config + a shared KEK, no code change. 0.2.0 is on the feed. components/secrets/GAPS.md.
• ⬜ Bump the four Secrets consumers 0.1.2 → 0.1.3/0.2.0 (KEK rotation + the same security fix).
• ⬜ Clear the pre-existing AngleSharp NU1902 build break in ScadaBridge CentralUI.Tests and HistorianGateway Tests — both fail full-solution builds under TreatWarningsAsErrors.
• ⬜ Adopt ZB.MOM.WW.LocalDb in an app — no consumer references it yet.
• ⬜ Give LocalDb a components/localdb/ entry; it is the one shared lib whose design lives only in docs/plans/2026-07-17-localdb-design.md.
• ⬜ Converge the Auth version pins (OtOpcUa is three minors behind at 0.1.1).
• ⬜ Normalize the next cross-cutting component.