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feat(infra): add Traefik load balancer with active node health check for central cluster failover

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Add ActiveNodeHealthCheck that returns 200 only on the Akka.NET cluster
leader, enabling Traefik to route traffic to the active central node and
automatically fail over when the leader changes. Also fixes AkkaClusterHealthCheck
to resolve ActorSystem from AkkaHostedService (was always null via DI).
This commit is contained in:
Joseph Doherty
2026-03-21 00:44:37 -04:00
parent 1a540f4f0a
commit 0a85a839a2
13 changed files with 368 additions and 30 deletions
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README.md
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@@ -52,7 +52,8 @@ This document serves as the master index for the SCADA system design. The system
| 16 | Commons | [Component-Commons.md](Component-Commons.md) | Namespace/folder convention (Types/Interfaces/Entities/Messages), shared data types, POCOs, repository interfaces, message contracts with additive-only versioning, UTC timestamp convention. |
| 17 | Configuration Database | [Component-ConfigurationDatabase.md](Component-ConfigurationDatabase.md) | EF Core data access, per-component repositories, unit-of-work, optimistic concurrency on deployment status, audit logging (IAuditService), migration management. |
| 18 | Management Service | [Component-ManagementService.md](Component-ManagementService.md) | Akka.NET ManagementActor on central, ClusterClientReceptionist registration, programmatic access to all admin operations, CLI interface. |
| 19 | CLI | [Component-CLI.md](Component-CLI.md) | Standalone command-line tool, System.CommandLine, Akka.NET ClusterClient transport, LDAP auth, JSON/table output, mirrors all Management Service operations. |
| 19 | CLI | [Component-CLI.md](Component-CLI.md) | Standalone command-line tool, System.CommandLine, HTTP transport via Management API, JSON/table output, mirrors all Management Service operations. |
| 20 | Traefik Proxy | [Component-TraefikProxy.md](Component-TraefikProxy.md) | Reverse proxy/load balancer fronting central cluster, active node routing via `/health/active`, automatic failover. |
### Reference Documentation