dcy-009(다중 인스턴스 RabbitMQ 토폴로지) 전체 SDLC: draft-req → confirm-req →
draft-batch(BAT-013) → run-batch-delivery → confirm-req-implemented.
- REQ-048 (Configuration): DaemonInstanceConfig.from_toml + DaemonConfig.from_config
(env 병합, portfolio_hub_token 주입) + 데몬 --config 필수 argparse + .gitignore 인스턴스
TOML + config/instance.example.toml
- REQ-049 (Interface): topology 동적 큐명 빌더 intent/snapshot/control_queue(instance_key)
— default=리터럴 큐명(하위호환), named=`{base}.{instance_key}` + daemon per-instance 구독
- REQ-050 (Integration): trex.direct(topic)/trex.broadcast(fanout) exchange +
declare_topology(instance_key) per-instance binding + control dual binding + direct_routing_key
- REQ-051 (Documentation): interface-contract/runtime-flows/project-structure 정합
하위호환: instance_key="default" → 기존 리터럴 큐명·RPC 경로 무회귀(FR-5).
split-brain 방지(NFR-3): 인스턴스 전용 큐. 민감값(NFR-4): TOML + gitignore.
검증: 신규 9 단위 + RabbitMQ 라우팅 2, 단위 271 passed,
인프라 게이트 301 passed(directed 격리 S-2 + broadcast dual S-3 + default 무회귀 S-4),
ruff clean. REQ-048~051 Implemented, BAT-013 release-candidate.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
88 lines
3.7 KiB
Python
88 lines
3.7 KiB
Python
"""Messaging topology constants + builders (REQ-021, dcy-006 OQ-2).
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Three patterns:
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1. snapshot RPC — direct queue `trex.snapshot.req`, reply via amq.rabbitmq.reply-to
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2. intent RPC — direct queue `trex.intent.req`, reply via amq.rabbitmq.reply-to
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3. events — topic exchange `trex.events`, routing key {event_type}.{strategy_id}.{symbol}
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Mapping principle: requests carry view/strategy_id in *payload*; events carry
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strategy_id/symbol in the *routing key* so brokers can filter per-strategy
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queues with patterns like `*.{strategy_id}.#`.
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"""
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from __future__ import annotations
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# --- RPC queues (durable for intent; transient-ish for snapshot but kept
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# durable for simplicity since the queue itself is shared) ---
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SNAPSHOT_REQ_QUEUE = "trex.snapshot.req"
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INTENT_REQ_QUEUE = "trex.intent.req"
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PAUSE_REQ_QUEUE = "trex.pause.req" # BAT-008 / REQ-032 (legacy alias of control)
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CONTROL_REQ_QUEUE = "trex.control.req" # BAT-012 / REQ-043 operator control channel
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# (action: pause|resume|list|kill_switch|resume_kill_switch)
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# --- multi-instance topology (BAT-013 / dcy-009) ---
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DEFAULT_INSTANCE_KEY = "default"
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DIRECT_EXCHANGE = "trex.direct" # topic, durable — directed per-instance routing (REQ-050)
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BROADCAST_EXCHANGE = "trex.broadcast" # fanout, durable — global control to all instances (REQ-050)
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def _instance_queue(base: str, instance_key: str | None) -> str:
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"""`{base}.{instance_key}` for named instances; literal `base` for default.
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The default special-case keeps existing queue names (and the entire test
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suite + deployed clients) byte-for-byte (REQ-049 FR-5 backward-compat).
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"""
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if instance_key in (None, DEFAULT_INSTANCE_KEY):
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return base
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return f"{base}.{instance_key}"
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def intent_queue(instance_key: str | None = DEFAULT_INSTANCE_KEY) -> str:
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return _instance_queue(INTENT_REQ_QUEUE, instance_key)
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def snapshot_queue(instance_key: str | None = DEFAULT_INSTANCE_KEY) -> str:
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return _instance_queue(SNAPSHOT_REQ_QUEUE, instance_key)
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def control_queue(instance_key: str | None = DEFAULT_INSTANCE_KEY) -> str:
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return _instance_queue(CONTROL_REQ_QUEUE, instance_key)
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def direct_routing_key(instance_key: str, channel_type: str) -> str:
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"""Directed routing key for `trex.direct` (REQ-050): `{instance_key}.{channel_type}`."""
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return f"{instance_key}.{channel_type}"
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# --- Events ---
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EVENTS_EXCHANGE = "trex.events" # topic, durable
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EVENTS_DLQ_EXCHANGE = "trex.events.dlq" # fanout, durable; receives unroutable/NACKed
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EVENTS_DLQ_QUEUE = "trex.events.dlq" # one collector queue bound to DLQ exchange
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def event_routing_key(event_type: str, strategy_id: str, symbol: str) -> str:
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"""Build the routing key for an event (dcy-006 OQ-2 mapping)."""
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# Sanitize tokens — AMQP routing keys cannot contain '.', '*', '#'.
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safe = lambda s: str(s or "_").replace(".", "_").replace("*", "_").replace("#", "_") # noqa: E731
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return f"{safe(event_type)}.{safe(strategy_id)}.{safe(symbol)}"
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def strategy_event_queue_name(strategy_id: str) -> str:
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"""Per-strategy durable queue name (catch-up + last-wins)."""
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return f"trex.events.strategy.{strategy_id}"
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def strategy_event_binding_pattern(strategy_id: str) -> str:
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"""Bind pattern for a strategy queue — all event types, all symbols.
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Wildcards: `*` matches one word, `#` matches zero-or-more words.
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"""
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return f"*.{strategy_id}.#"
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# --- per-queue arguments (REQ-023 TTL / max-length / drop-oldest) ---
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STRATEGY_QUEUE_ARGS: dict = {
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"x-message-ttl": 3_600_000, # 1h
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"x-max-length": 10_000,
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"x-overflow": "drop-head", # drop-oldest, then accept new (REQ-023 AC-7)
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"x-dead-letter-exchange": EVENTS_DLQ_EXCHANGE,
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}
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