81 lines
2.9 KiB
Python
81 lines
2.9 KiB
Python
"""Active-agent enumeration for the docker backend.
|
|
|
|
Mirrors `backend/smolmachines/enumerate.py`: returns
|
|
`ActiveAgent` records the CLI `list active` command and the
|
|
dashboard agents pane consume. Empty when docker isn't reachable
|
|
— gated by `has_backend('docker')` at the cross-backend caller
|
|
so this module trusts that docker is available when called.
|
|
|
|
The parser (`_parse_services_by_project`) is exposed for direct
|
|
unit testing; the docker `docker ps` invocation is in
|
|
`_query_services_by_project`."""
|
|
|
|
from __future__ import annotations
|
|
|
|
import subprocess
|
|
|
|
from .. import ActiveAgent
|
|
from .bottle_state import read_metadata
|
|
from .compose import compose_project_name, list_active_slugs
|
|
|
|
|
|
def enumerate_active() -> list[ActiveAgent]:
|
|
"""All currently-running docker-backed agents. Caller is
|
|
responsible for gating on `has_backend('docker')` if it
|
|
matters; if docker is missing the `docker ps` call below
|
|
returns an empty list silently."""
|
|
slugs = list_active_slugs(include_stopped=False, warn_on_error=False)
|
|
if not slugs:
|
|
return []
|
|
services_by_project = _query_services_by_project()
|
|
out: list[ActiveAgent] = []
|
|
for slug in slugs:
|
|
project = compose_project_name(slug)
|
|
services = services_by_project.get(project, set())
|
|
metadata = read_metadata(slug)
|
|
out.append(ActiveAgent(
|
|
backend_name="docker",
|
|
slug=slug,
|
|
agent_name=metadata.agent_name if metadata else "?",
|
|
started_at=metadata.started_at if metadata else "",
|
|
services=tuple(sorted(services)),
|
|
))
|
|
return out
|
|
|
|
|
|
def _parse_services_by_project(stdout: str) -> dict[str, set[str]]:
|
|
"""Parse `docker ps` output formatted as
|
|
`<project-label>\\t<service-label>` (one line per container)
|
|
into a `{project: {service, ...}}` mapping. Pure function for
|
|
testing — the docker invocation is in `_query_services_by_project`."""
|
|
out: dict[str, set[str]] = {}
|
|
for line in stdout.splitlines():
|
|
project, _, service = line.partition("\t")
|
|
if not project or not service:
|
|
continue
|
|
out.setdefault(project, set()).add(service)
|
|
return out
|
|
|
|
|
|
def _query_services_by_project() -> dict[str, set[str]]:
|
|
"""One `docker ps` call → `{project: {service, ...}}`. Used
|
|
by the CLI's `list active` and the dashboard's agents pane —
|
|
one subprocess per refresh tick, not one per bottle."""
|
|
try:
|
|
r = subprocess.run(
|
|
[
|
|
"docker", "ps",
|
|
"--filter", "label=com.docker.compose.project",
|
|
"--format",
|
|
'{{.Label "com.docker.compose.project"}}'
|
|
"\t"
|
|
'{{.Label "com.docker.compose.service"}}',
|
|
],
|
|
capture_output=True, text=True, check=False,
|
|
)
|
|
except FileNotFoundError:
|
|
return {}
|
|
if r.returncode != 0:
|
|
return {}
|
|
return _parse_services_by_project(r.stdout or "")
|