Add decnet.lifecycle package: pure orchestration layer that the master API will invoke via asyncio.create_task to drive DeckyLifecycle rows through pending -> running -> succeeded | failed without holding an HTTP request open. Strategy classes per (operation, transport): - LocalDeployStrategy: master-resident, runs engine.deployer.deploy in a thread. - SwarmDeployStrategy: shards by host_uuid, dispatches via AgentClient.deploy; worker drives terminal via heartbeat. - LocalMutateStrategy: write_compose + compose up. - SwarmMutateStrategy: AgentClient.mutate; worker drives terminal. decnet.bus.topics gains decky_lifecycle(name) -> decky.<name>.lifecycle plus DECKY_LIFECYCLE constant. Payload documented in the wiki (separate commit). publish_safely keeps bus best-effort. Nothing is wired to call this yet -- next commits convert worker /deploy /mutate to 202, then heartbeat delta wiring, then master API.
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
"""Async deploy/mutate orchestration entry points.
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Called by the master API handlers right after they create the lifecycle
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rows. Picks the right strategy (local vs swarm) and runs it off the
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HTTP request thread via ``asyncio.create_task`` at the caller.
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"""
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from __future__ import annotations
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from pathlib import Path
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from decnet.bus.base import BaseBus
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from decnet.config import DecnetConfig, DeckyConfig
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from decnet.lifecycle.strategies import (
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LocalDeployStrategy,
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SwarmDeployStrategy,
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select_deploy_strategy,
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select_mutate_strategy,
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)
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from decnet.logging import get_logger
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from decnet.web.db.repository import BaseRepository
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log = get_logger("lifecycle.runner")
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async def run_deploy(
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repo: BaseRepository,
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bus: BaseBus | None,
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*,
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lifecycle_ids: dict[str, str],
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config: DecnetConfig,
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) -> None:
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"""Execute the deploy referenced by *lifecycle_ids* (decky_name ->
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lifecycle_id). Never raises — strategy turns errors into failed
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rows. Intended to be wrapped in ``asyncio.create_task``.
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In swarm mode the config may contain BOTH worker-resident deckies
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(host_uuid set) and master-resident ones (host_uuid is None); we
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route each subset through its own strategy.
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"""
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try:
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if config.mode == "swarm":
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remote_deckies = [d for d in config.deckies if d.host_uuid is not None]
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local_deckies = [d for d in config.deckies if d.host_uuid is None]
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if remote_deckies:
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remote_ids = {
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d.name: lifecycle_ids[d.name]
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for d in remote_deckies if d.name in lifecycle_ids
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}
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remote_cfg = config.model_copy(update={"deckies": remote_deckies})
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await SwarmDeployStrategy().execute(
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repo, bus,
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lifecycle_ids=remote_ids, config=remote_cfg,
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)
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if local_deckies:
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local_ids = {
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d.name: lifecycle_ids[d.name]
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for d in local_deckies if d.name in lifecycle_ids
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}
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local_cfg = config.model_copy(update={"deckies": local_deckies})
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await LocalDeployStrategy().execute(
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repo, bus,
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lifecycle_ids=local_ids, config=local_cfg,
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)
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else:
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strategy = select_deploy_strategy(config)
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await strategy.execute(
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repo, bus, lifecycle_ids=lifecycle_ids, config=config,
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)
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except Exception: # noqa: BLE001 — defense in depth: never crash task
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log.exception("lifecycle.run_deploy crashed unexpectedly")
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async def run_mutate(
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repo: BaseRepository,
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bus: BaseBus | None,
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*,
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lifecycle_id: str,
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decky: DeckyConfig,
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services: list[str],
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full_config: DecnetConfig,
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compose_path: Path,
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) -> None:
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"""Execute a single-decky mutate. Never raises."""
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try:
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strategy = select_mutate_strategy(full_config, decky)
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await strategy.execute(
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repo, bus,
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lifecycle_id=lifecycle_id, decky=decky,
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services=services, full_config=full_config,
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compose_path=compose_path,
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)
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except Exception: # noqa: BLE001
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log.exception("lifecycle.run_mutate crashed unexpectedly")
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__all__ = ["run_deploy", "run_mutate"]
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