lmxopcua/service_info.md

# Service Update Summary

Updated service instance: `C:\publish\lmxopcua\instance1`

Update time: `2026-03-25 12:54-12:55 America/New_York`

Backup created before deploy: `C:\publish\lmxopcua\backups\20260325-125444`

Configuration preserved:
- `C:\publish\lmxopcua\instance1\appsettings.json` was not overwritten.

Deployed binary:
- `C:\publish\lmxopcua\instance1\ZB.MOM.WW.LmxOpcUa.Host.exe`
- Last write time: `2026-03-25 12:53:58`
- Size: `143360`

Windows service:
- Name: `LmxOpcUa`
- Display name: `LMX OPC UA Server`
- Account: `LocalSystem`
- Status after update: `Running`
- Process ID after restart: `29236`

Restart evidence:
- Service log file: `C:\publish\lmxopcua\instance1\logs\lmxopcua-20260325_004.log`
- Last startup line: `2026-03-25 12:55:08.619 -04:00 [INF] The LmxOpcUa service was started.`

## CLI Verification

Endpoint from deployed config:
- `opc.tcp://localhost:4840/LmxOpcUa`

CLI used:
- `C:\Users\dohertj2\Desktop\lmxopcua\tools\opcuacli-dotnet\bin\Debug\net10.0\opcuacli-dotnet.exe`

Commands run:

```powershell
opcuacli-dotnet.exe connect -u opc.tcp://localhost:4840/LmxOpcUa
opcuacli-dotnet.exe read -u opc.tcp://localhost:4840/LmxOpcUa -n 'ns=1;s=MESReceiver_001.MoveInPartNumbers'
opcuacli-dotnet.exe read -u opc.tcp://localhost:4840/LmxOpcUa -n 'ns=1;s=MESReceiver_001.MoveInPartNumbers[]'
```

Observed results:
- `connect`: succeeded, server reported as `LmxOpcUa`.
- `read ns=1;s=MESReceiver_001.MoveInPartNumbers`: succeeded with good status `0x00000000`.
- `read ns=1;s=MESReceiver_001.MoveInPartNumbers[]`: failed with `BadNodeIdUnknown` (`0x80340000`).

---

## Instance 2 (Redundant Secondary)

Deployed: `2026-03-28`

Deployment path: `C:\publish\lmxopcua\instance2`

Configuration:
- `OpcUa.Port`: `4841`
- `OpcUa.ServerName`: `LmxOpcUa2`
- `OpcUa.ApplicationUri`: `urn:localhost:LmxOpcUa:instance2`
- `Dashboard.Port`: `8082`
- `MxAccess.ClientName`: `LmxOpcUa2`
- `Redundancy.Enabled`: `true`
- `Redundancy.Mode`: `Warm`
- `Redundancy.Role`: `Secondary`
- `Redundancy.ServerUris`: `["urn:localhost:LmxOpcUa:instance1", "urn:localhost:LmxOpcUa:instance2"]`

Windows service:
- Name: `LmxOpcUa2`
- Display name: `LMX OPC UA Server (Instance 2)`
- Account: `LocalSystem`
- Endpoint: `opc.tcp://localhost:4841/LmxOpcUa`

Instance 1 redundancy update (same date):
- `OpcUa.ApplicationUri`: `urn:localhost:LmxOpcUa:instance1`
- `Redundancy.Enabled`: `true`
- `Redundancy.Mode`: `Warm`
- `Redundancy.Role`: `Primary`
- `Redundancy.ServerUris`: `["urn:localhost:LmxOpcUa:instance1", "urn:localhost:LmxOpcUa:instance2"]`

CLI verification:
```
opcuacli-dotnet.exe redundancy -u opc.tcp://localhost:4840/LmxOpcUa
  → Redundancy Mode: Warm, Service Level: 200, Application URI: urn:localhost:LmxOpcUa:instance1

opcuacli-dotnet.exe redundancy -u opc.tcp://localhost:4841/LmxOpcUa
  → Redundancy Mode: Warm, Service Level: 150, Application URI: urn:localhost:LmxOpcUa:instance2
```

Both instances report the same `ServerUriArray` and expose the same Galaxy namespace (`urn:ZB:LmxOpcUa`).

## LDAP Authentication Update

Updated: `2026-03-28`

Both instances updated to use LDAP authentication via GLAuth.

Configuration changes (both instances):
- `Authentication.AllowAnonymous`: `true` (anonymous can browse/read)
- `Authentication.AnonymousCanWrite`: `false` (anonymous writes blocked)
- `Authentication.Ldap.Enabled`: `true`
- `Authentication.Ldap.Host`: `localhost`
- `Authentication.Ldap.Port`: `3893`
- `Authentication.Ldap.BaseDN`: `dc=lmxopcua,dc=local`

LDAP server: GLAuth v2.4.0 at `C:\publish\glauth\` (Windows service: `GLAuth`)

Permission verification (instance1, port 4840):
```
anonymous read    → allowed
anonymous write   → denied  (BadUserAccessDenied)
readonly  read    → allowed
readonly  write   → denied  (BadUserAccessDenied)
readwrite write   → allowed
admin     write   → allowed
alarmack  write   → denied  (BadUserAccessDenied)
bad password      → denied  (connection rejected)
```

## Alarm Notifier Chain Update

Updated: `2026-03-28`

Both instances updated with alarm event propagation up the notifier chain.

Code changes:
- Alarm events now walk up the parent chain (`ReportEventUpNotifierChain`), reporting to every ancestor node
- `EventNotifier = SubscribeToEvents` is set on all ancestors of alarm-containing nodes (`EnableEventNotifierUpChain`)
- Removed separate `Server.ReportEvent` call (no longer needed — the walk reaches the root)

No configuration changes required — alarm tracking was already enabled (`AlarmTrackingEnabled: true`).

Verification (instance1, port 4840):
```
alarms --node TestArea --refresh:
  TestMachine_001.TestAlarm001 → visible (Severity=500, Retain=True)
  TestMachine_001.TestAlarm002 → visible (Severity=500, Retain=True)
  TestMachine_001.TestAlarm003 → visible (Severity=500, Retain=True)
  TestMachine_002.TestAlarm001 → visible (Severity=500, Retain=True)
  TestMachine_002.TestAlarm003 → visible (Severity=500, Retain=True)

alarms --node DEV --refresh:
  Same 5 alarms visible at DEV (grandparent) level
```

## Auth Consolidation Update

Updated: `2026-03-28`

Both instances updated to consolidate LDAP roles into OPC UA session roles (`RoleBasedIdentity.GrantedRoleIds`).

Code changes:
- LDAP groups now map to custom OPC UA role NodeIds in `urn:zbmom:lmxopcua:roles` namespace
- Roles stored on session identity via `GrantedRoleIds` — no username-to-role side cache
- Permission checks use `GrantedRoleIds.Contains()` instead of username extraction
- `AnonymousCanWrite` behavior is consistent regardless of LDAP state
- Galaxy namespace moved from `ns=2` to `ns=3` (roles namespace is `ns=2`)

No configuration changes required.

Verification (instance1, port 4840):
```
anonymous read      → allowed
anonymous write     → denied  (BadUserAccessDenied, AnonymousCanWrite=false)
readonly  write     → denied  (BadUserAccessDenied)
readwrite write     → allowed
admin     write     → allowed
alarmack  write     → denied  (BadUserAccessDenied)
bad password        → rejected (connection failed)
```

## Granular Write Roles Update

Updated: `2026-03-28`

Both instances updated with granular write roles replacing the single ReadWrite role.

Code changes:
- `ReadWrite` role replaced by `WriteOperate`, `WriteTune`, `WriteConfigure`
- Write permission checks now consider the Galaxy security classification of the target attribute
- `SecurityClassification` stored in `TagMetadata` for per-node lookup at write time

GLAuth changes:
- New groups: `WriteOperate` (5502), `WriteTune` (5504), `WriteConfigure` (5505)
- New users: `writeop`, `writetune`, `writeconfig`
- `admin` user added to all groups (5502, 5503, 5504, 5505)

Config changes (both instances):
- `Authentication.Ldap.ReadWriteGroup` replaced by `WriteOperateGroup`, `WriteTuneGroup`, `WriteConfigureGroup`

Verification (instance1, port 4840, Operate-classified attributes):
```
anonymous read        → allowed
anonymous write       → denied  (AnonymousCanWrite=false)
readonly  write       → denied  (no write role)
writeop   write       → allowed (WriteOperate matches Operate classification)
writetune write       → denied  (WriteTune doesn't match Operate)
writeconfig write     → denied  (WriteConfigure doesn't match Operate)
admin     write       → allowed (has all write roles)
```

## Notes

The service deployment and restart succeeded. The live CLI checks confirm the endpoint is reachable and that the array node identifier has changed to the bracketless form. The array value on the live service still prints as blank even though the status is good, so if this environment should have populated `MoveInPartNumbers`, the runtime data path still needs follow-up investigation.