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docs(audit): Configuration.md — clarify OTOPCUA_CONFIG_CONNECTION is design-time only (review fix)

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Joseph Doherty
2026-06-03 16:42:13 -04:00
parent 523d79cab0
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docs/Configuration.md
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@@ -134,7 +134,7 @@ All names are read in this repo's source via `Environment.GetEnvironmentVariable
| Variable | Read by | Effect / default |
|---|---|---|
| `OTOPCUA_ROLES` | `src/Server/ZB.MOM.WW.OtOpcUa.Host/Program.cs` (`RoleParser.Parse`) | Comma-separated cluster roles for the node (`admin`, `driver`, `dev`). Drives the conditional wiring and the per-role appsettings overlay. Used when `Cluster:Roles` is empty. |
| `OTOPCUA_CONFIG_CONNECTION` | `src/Core/ZB.MOM.WW.OtOpcUa.Configuration/DesignTimeDbContextFactory.cs` (design-time, `dotnet ef`); referenced as the runtime fallback in `ServiceCollectionExtensions.cs` | Config DB connection string. Used by `dotnet ef` migrations/scaffolding at design time, and cited as the alternative to `ConnectionStrings:ConfigDb` for the running host. No credential is embedded in source. |
| `OTOPCUA_CONFIG_CONNECTION` | `src/Core/ZB.MOM.WW.OtOpcUa.Configuration/DesignTimeDbContextFactory.cs` (design-time / `dotnet ef` only) | Read at **design time** by `DesignTimeDbContextFactory.cs` for `dotnet ef` migrations. At **runtime** the server resolves the connection string from `ConnectionStrings:ConfigDb` (env form: `ConnectionStrings__ConfigDb`) via `configuration.GetConnectionString("ConfigDb")` in `ServiceCollectionExtensions.cs` — `OTOPCUA_CONFIG_CONNECTION` appears there only as a hint in an error message, not via `GetEnvironmentVariable`. No credential is embedded in source. |
| `OTOPCUA_ALLOWED_SID` | `src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware/Program.cs` | SID of the server principal allowed to connect to the historian sidecar's named pipe (passed by the supervisor at spawn). Required — sidecar throws if unset. |
| `ASPNETCORE_ENVIRONMENT` | ASP.NET host builder (framework) | Selects `appsettings.{Environment}.json` (e.g. `Development`). |