bvandeusenandClaude Opus 5.5
bd762307e0
Prometheus gains a "Widget templates" tab beside Targets. It lists the built-in templates and an admin's own, any that no longer pass the checker first. A template opens as its YAML beside a live preview drawn over a chosen target exactly as the dashboard widget draws it (routes.draw, now shared by both). An admin writes or pastes a new one, reads a .yaml upload into the editor to look over, duplicates any template under a free name, edits and deletes their own; anyone can export the YAML. Built-in templates are read-only. Custom templates are rows in prometheus_widget_templates (migration prometheus_002_templates), kept in backups, keyed "custom:<id>" so a rename keeps its widgets. Saving needs a template that passes the checker and a name no other template has. Create, update and delete are audited and link to the template. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
# plugins/prometheus/__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 PrometheusTarget, PrometheusWidgetTemplate # noqa: F401 — registers the tables
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register_widgets()
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def register_widgets() -> None:
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"""One dashboard widget for every target and template (System 181's
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ruling). Its target and template lists are read when the widget picker
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opens, so a new target or template appears without a restart."""
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from steward.core.widgets import register_widget
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from . import library
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register_widget({
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"key": "prometheus",
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"label": "Prometheus",
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"description": "One scrape target drawn by a widget template: Fabled Archives, or one you copy in",
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"hx_url": "/plugins/prometheus/widget",
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"detail_url": "/plugins/prometheus/targets/{target}",
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"plugin": "prometheus",
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"poll": True,
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"default_title": library.default_title,
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"params": [
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{"key": "target", "label": "Target", "type": "select", "default": "",
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"options_from": library.target_options,
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"empty": "No targets yet: add one under Prometheus first."},
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{"key": "template", "label": "Template", "type": "select", "default": "",
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"options_from": library.template_options,
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"empty": "No templates yet."},
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],
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})
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def get_scheduled_tasks() -> list:
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from .scheduler import make_scrape_task
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return [make_scrape_task(_app)]
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def get_blueprint():
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from .routes import prometheus_bp
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return prometheus_bp
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def get_nav() -> list[dict]:
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# Surfaces in the sidebar's Infrastructure group (scraped endpoints).
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return [{"label": "Prometheus", "href": "/plugins/prometheus/"}]
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def get_alert_metrics() -> dict[str, list[str]]:
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"""The metric names are whatever each endpoint exposes, so the list is
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empty here and the rule form offers the names recorded so far."""
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return {"prometheus": []}
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def get_audit_entities() -> dict:
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"""Audit rows about a target or a widget template name it and link to its page."""
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from .models import PrometheusTarget, PrometheusWidgetTemplate
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return {"prometheus_target": (PrometheusTarget, "/plugins/prometheus/targets/{}"),
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"prometheus_template": (PrometheusWidgetTemplate, "/plugins/prometheus/templates/custom:{}")}
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