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131 lines
4.0 KiB
Python
131 lines
4.0 KiB
Python
"""
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Mutation Engine for DECNET.
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Handles dynamic rotation of exposed honeypot services over time.
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"""
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import random
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import time
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from typing import Optional
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from rich.console import Console
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from decnet.archetypes import get_archetype
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from decnet.fleet import all_service_names
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from decnet.composer import write_compose
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from decnet.config import DeckyConfig, DecnetConfig
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from decnet.engine import _compose_with_retry
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from pathlib import Path
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import anyio
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import asyncio
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from decnet.web.db.repository import BaseRepository
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console = Console()
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async def mutate_decky(decky_name: str, repo: BaseRepository) -> bool:
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"""
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Perform an Intra-Archetype Shuffle for a specific decky.
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Returns True if mutation succeeded, False otherwise.
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"""
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state_dict = await repo.get_state("deployment")
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if state_dict is None:
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console.print("[red]No active deployment found in database.[/]")
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return False
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config = DecnetConfig(**state_dict["config"])
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compose_path = Path(state_dict["compose_path"])
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decky: Optional[DeckyConfig] = next((d for d in config.deckies if d.name == decky_name), None)
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if not decky:
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console.print(f"[red]Decky '{decky_name}' not found in state.[/]")
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return False
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if decky.archetype:
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try:
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arch = get_archetype(decky.archetype)
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svc_pool = list(arch.services)
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except ValueError:
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svc_pool = all_service_names()
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else:
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svc_pool = all_service_names()
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if not svc_pool:
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console.print(f"[yellow]No services available for mutating '{decky_name}'.[/]")
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return False
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current_services = set(decky.services)
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attempts = 0
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while True:
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count = random.randint(1, min(3, len(svc_pool))) # nosec B311
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chosen = set(random.sample(svc_pool, count)) # nosec B311
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attempts += 1
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if chosen != current_services or attempts > 20:
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break
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decky.services = list(chosen)
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decky.last_mutated = time.time()
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# Save to DB
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await repo.set_state("deployment", {"config": config.model_dump(), "compose_path": str(compose_path)})
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# Still writes files for Docker to use
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write_compose(config, compose_path)
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console.print(f"[cyan]Mutating '{decky_name}' to services: {', '.join(decky.services)}[/]")
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try:
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# Wrap blocking call in thread
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await anyio.to_thread.run_sync(_compose_with_retry, "up", "-d", "--remove-orphans", compose_path)
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except Exception as e:
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console.print(f"[red]Failed to mutate '{decky_name}': {e}[/]")
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return False
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return True
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async def mutate_all(repo: BaseRepository, force: bool = False) -> None:
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"""
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Check all deckies and mutate those that are due.
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If force=True, mutates all deckies regardless of schedule.
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"""
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state_dict = await repo.get_state("deployment")
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if state_dict is None:
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console.print("[red]No active deployment found.[/]")
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return
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config = DecnetConfig(**state_dict["config"])
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now = time.time()
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mutated_count = 0
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for decky in config.deckies:
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interval_mins = decky.mutate_interval or config.mutate_interval
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if interval_mins is None and not force:
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continue
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if force:
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due = True
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else:
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elapsed_secs = now - decky.last_mutated
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due = elapsed_secs >= (interval_mins * 60)
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if due:
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success = await mutate_decky(decky.name, repo=repo)
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if success:
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mutated_count += 1
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if mutated_count == 0 and not force:
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console.print("[dim]No deckies are due for mutation.[/]")
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async def run_watch_loop(repo: BaseRepository, poll_interval_secs: int = 10) -> None:
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"""Run an infinite loop checking for deckies that need mutation."""
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console.print(f"[green]DECNET Mutator Watcher started (polling every {poll_interval_secs}s).[/]")
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try:
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while True:
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await mutate_all(force=False, repo=repo)
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await asyncio.sleep(poll_interval_secs)
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except KeyboardInterrupt:
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console.print("\n[dim]Mutator watcher stopped.[/]")
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