bvandeusen
7b80552a7d
Docker collection moves off the central single-socket scrape onto the host
agent, giving Docker a real per-host dimension. The Steward host now reports
its own containers like any other host, and same-named containers on different
hosts no longer collide.
- agent: stdlib UDS Docker client (AF_UNIX HTTP/1.1, Connection: close,
chunked-aware), collect_docker() ports the cpu%/mem math; sample["docker"]
added best-effort (silent-skip on absent/unreadable socket). AGENT_VERSION
1.2.0 → 1.3.0; optional docker_socket config key.
- ingest: host_agent ingest hands per-host container snapshots to the docker
plugin via a new "docker.persist_host_samples" capability (no hard import,
no-op when docker disabled), inside a SAVEPOINT so a docker failure never
sinks the host metrics. Resource names are host-scoped ("<host>/<name>").
- schema: docker_containers re-keyed (host_id, name); docker_metrics gains
host_id; docker_002 migration DROP+recreates (dev-only, rule 122).
- ui: Docker page + widgets grouped by host with host links; new per-host
Docker panel embedded on the Hosts hub (gated on docker enabled via a new
enabled_plugins template context). Replaces the SQLite-only strftime
bucketing with DB-agnostic Python bucketing.
- provisioning: install/provision playbooks add steward-agent to the docker
group (best-effort) so the agent can read the socket.
- removed central scrape: docker scheduler.py + scraper.py deleted; plugin.yaml
socket_path/scrape_interval_seconds/include_stopped dropped (plugin 2.0.0).
- tests: agent docker collector units (math, chunked decode, silent-skip,
sample shape, config) + integration (host-scoped schema + persistence).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016Jg27rgypiW2efULXJDtMC
41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
# plugins/docker/__init__.py
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from __future__ import annotations
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from quart import Quart
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_app: "Quart | None" = None
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def setup(app: "Quart") -> None:
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global _app
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_app = app
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from .models import DockerContainer, DockerMetric # noqa: F401 — register with Base
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# Publish the per-host persist hook so the host agent can hand off the
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# `docker` array from each sample without importing our models (opportunistic
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# synergy — host_agent gates on has_capability and no-ops if we're disabled).
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# required_role=viewer: this is a trusted server-side data-plane write driven
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# by the authenticated agent ingest, not a user-facing privileged action.
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from steward.core.capabilities import register_capability
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from steward.models.users import UserRole
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from .ingest import persist_host_docker
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register_capability(
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"docker.persist_host_samples", persist_host_docker,
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label="Persist host Docker samples",
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description="Store per-host container state + metrics pushed by the host agent.",
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required_role=UserRole.viewer,
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)
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def get_scheduled_tasks() -> list:
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# Collection is now agent-driven (pushed to the host_agent ingest); the
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# central socket scrape was removed. No periodic task to register.
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return []
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def get_blueprint():
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from .routes import docker_bp
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return docker_bp
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