Ilia Denisov
60 lines
1.9 KiB
Markdown
60 lines
1.9 KiB
Markdown
# Runtime and Components
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The diagram below focuses on the deployed `galaxy/gateway` process and its
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runtime dependencies.
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```mermaid
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flowchart LR
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subgraph Clients
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Public["Public REST clients"]
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Authd["Authenticated gRPC clients"]
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end
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subgraph Gateway["Edge Gateway process"]
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PublicHTTP["Public HTTP listener\n/healthz /readyz /api/v1/public/auth/*"]
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AuthGRPC["Authenticated gRPC listener\nExecuteCommand / SubscribeEvents"]
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AdminHTTP["Optional admin HTTP listener\n/metrics"]
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SessionSnap["In-memory session snapshot cache"]
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Replay["Replay reservation client"]
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PushHub["PushHub"]
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SessSub["Session event subscriber"]
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ClientSub["Client event subscriber"]
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Telemetry["Logs, traces, metrics"]
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end
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Public --> PublicHTTP
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Authd --> AuthGRPC
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AuthGRPC --> SessionSnap
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AuthGRPC --> Replay
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AuthGRPC --> PushHub
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SessSub --> SessionSnap
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SessSub --> PushHub
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ClientSub --> PushHub
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PublicHTTP --> Telemetry
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AuthGRPC --> Telemetry
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AdminHTTP --> Telemetry
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Redis["Redis\nsession records + replay keys + streams"]
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AuthSvc["Auth / Session Service"]
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Downstream["Downstream business services"]
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Metrics["Prometheus / OTLP collectors"]
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PublicHTTP -. public auth adapter .-> AuthSvc
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SessionSnap --> Redis
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Replay --> Redis
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SessSub --> Redis
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ClientSub --> Redis
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AuthGRPC --> Downstream
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Telemetry --> Metrics
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```
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Notes:
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- `cmd/gateway` refuses startup when Redis connectivity or the response signer
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is misconfigured.
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- The admin listener is optional and serves only Prometheus text metrics.
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- Public auth routing stays available without an upstream adapter, but returns
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`503 service_unavailable`.
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- Authenticated gRPC starts with an empty static router; `ExecuteCommand`
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remains `UNIMPLEMENTED` until downstream routes are injected.
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