Files
DECNET/decnet/services/base.py
anti 5a7ff285cd feat: fleet-wide MACVLAN sniffer microservice
Replace per-decky sniffer containers with a single host-side sniffer
that monitors all traffic on the MACVLAN interface. Runs as a background
task in the FastAPI lifespan alongside the collector, fully fault-isolated
so failures never crash the API.

- Add fleet_singleton flag to BaseService; sniffer marked as singleton
- Composer skips fleet_singleton services in compose generation
- Fleet builder excludes singletons from random service assignment
- Extract TLS fingerprinting engine from templates/sniffer/server.py
  into decnet/sniffer/ package (parameterized for fleet-wide use)
- Sniffer worker maps packets to deckies via IP→name state mapping
- Original templates/sniffer/server.py preserved for future use
2026-04-14 15:02:34 -04:00

44 lines
1.6 KiB
Python

from abc import ABC, abstractmethod
from pathlib import Path
class BaseService(ABC):
"""
Contract every honeypot service plugin must implement.
To add a new service: subclass BaseService in a new file under decnet/services/.
The registry auto-discovers all subclasses at import time.
"""
name: str # unique slug, e.g. "ssh", "smb"
ports: list[int] # ports this service listens on inside the container
default_image: str # Docker image tag, or "build" if a Dockerfile is needed
fleet_singleton: bool = False # True = runs once fleet-wide, not per-decky
@abstractmethod
def compose_fragment(
self,
decky_name: str,
log_target: str | None = None,
service_cfg: dict | None = None,
) -> dict:
"""
Return the docker-compose service dict for this service on a given decky.
Networking keys (networks, ipv4_address) are injected by the composer —
do NOT include them here. Include: image/build, environment, volumes,
restart, and any service-specific options.
Args:
decky_name: unique identifier for the decky (e.g. "decky-01")
log_target: "ip:port" string if log forwarding is enabled, else None
service_cfg: optional per-service persona config from INI subsection
"""
def dockerfile_context(self) -> Path | None:
"""
Return path to the build context directory if this service needs a custom
image built. Return None if default_image is used directly.
"""
return None