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>
60 lines
3.2 KiB
Python
60 lines
3.2 KiB
Python
# plugins/prometheus/models.py
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from __future__ import annotations
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from datetime import datetime, timezone
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from sqlalchemy import JSON, Boolean, DateTime, Integer, String, Text
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from sqlalchemy.orm import Mapped, mapped_column
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from steward.core.ids import time_ordered_id
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from steward.models.base import Base
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class PrometheusTarget(Base):
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"""A /metrics endpoint Steward scrapes, edited on the Prometheus page.
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The bearer token is stored encrypted. keep and drop are lists of name
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patterns ("fabledarchives_*") an admin chooses: Steward does the
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filtering, the endpoint serves everything. The last_* columns are the
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newest scrape's outcome, written by the scraper, so a page can say why a
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target isn't answering without asking it.
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"""
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__tablename__ = "prometheus_targets"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=time_ordered_id)
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name: Mapped[str] = mapped_column(String(100), nullable=False, unique=True)
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url: Mapped[str] = mapped_column(String(500), nullable=False)
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token: Mapped[str] = mapped_column(Text, nullable=False, default="")
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verify_tls: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
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interval_seconds: Mapped[int] = mapped_column(Integer, nullable=False, default=60)
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keep: Mapped[list] = mapped_column(JSON, nullable=False, default=list)
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drop: Mapped[list] = mapped_column(JSON, nullable=False, default=list)
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series_cap: Mapped[int] = mapped_column(Integer, nullable=False, default=1000)
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enabled: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, default=lambda: datetime.now(timezone.utc))
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last_scraped_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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last_ok_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
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last_error: Mapped[str | None] = mapped_column(Text, nullable=True)
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last_kept: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
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last_dropped: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
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last_capped: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
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class PrometheusWidgetTemplate(Base):
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"""A widget template an admin wrote or copied in (#5692), beside the
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bundled ones in widgets/*.yaml. `text` is the YAML as written; `name` is
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its `name:`, kept here so the library lists and orders without reading
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every template. Only a template that passes the checker is saved. Its key
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in a widget's settings is "custom:<id>", so renaming it keeps its widgets.
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"""
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__tablename__ = "prometheus_widget_templates"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=time_ordered_id)
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name: Mapped[str] = mapped_column(String(80), nullable=False, unique=True)
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text: Mapped[str] = mapped_column(Text, nullable=False)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, default=lambda: datetime.now(timezone.utc))
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False, default=lambda: datetime.now(timezone.utc))
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