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Add configurable non-transparent OPC UA server redundancy

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Separates ApplicationUri from namespace identity so each instance in a
redundant pair has a unique server URI while sharing the same Galaxy
namespace. Exposes RedundancySupport, ServerUriArray, and dynamic
ServiceLevel through the standard OPC UA server object. ServiceLevel
is computed from role (Primary/Secondary) and runtime health (MXAccess
and DB connectivity). Adds CLI redundancy command, second deployed
service instance, and 31 new tests including paired-server integration.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-03-28 13:32:17 -04:00
parent a3c2d9b243
commit a55153d7d5
27 changed files with 1475 additions and 248 deletions
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README.md
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@@ -141,6 +141,7 @@ gr/ Galaxy repository docs, SQL queries, schema
| [Service Hosting](docs/ServiceHosting.md) | TopShelf, startup/shutdown sequence, error handling |
| [CLI Tool](docs/CliTool.md) | Connect, browse, read, write, subscribe, historyread, alarms commands |
| [Security](docs/security.md) | Transport security profiles, certificate trust, production hardening |
| [Redundancy](docs/Redundancy.md) | Non-transparent warm/hot redundancy, ServiceLevel, paired deployment |
## Related Documentation