Files
computer-playbook/plugins/lookup/asset_host.py
kevinveenbirkenbachandClaude Opus 4.8 e99d8a8813 feat(cdn): serve role frontend dependencies from the internal CDN
Add lookup('asset', app, pkg, path) and lookup('asset_host'): both resolve
the asset origin through one shared resolve_host, returning the internal
CDN domain when web-svc-cdn is deployed with flavor internal and
cdn.jsdelivr.net otherwise, so template URLs and CSP origins can never
diverge. Versions come from the role's committed files/package-lock.json.

Roles declare frontend dependencies in files/package.json; web-svc-cdn
aggregates every role lockfile, runs one npm ci per role in a node
container and mirrors the packages under /npm/<pkg>@<version>/ following
jsdelivr's path scheme, so internal and external URLs differ only by host.

Convert web-app-dashboard (keycloak-js 24.0.5 UMD) and web-app-littlejs
(bootstrap, fontawesome) to the asset lookup, drop the vendored keycloak
blob, and add a repository lint forbidding hardcoded external CDN hosts
in templates and CSP metas; pre-existing external CDN entries are checked
out with nocheck markers and a migration TODO.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-23 20:01:31 +02:00

25 lines
861 B
Python

from __future__ import annotations
from typing import Any
from ansible.plugins.lookup import LookupBase
from plugins.lookup.asset import resolve_host
class LookupModule(LookupBase):
"""
Usage:
{{ lookup('asset_host') }}
Returns the origin that lookup('asset', ...) resolves against for the
current deployment (the internal CDN origin with web-svc-cdn flavor
internal, else https://cdn.jsdelivr.net). Use it to derive the CSP
script-/style-src origin from the same flavor decision the asset URLs
use, so the whitelist never drifts from where the assets load.
"""
def run(self, terms, variables: dict[str, Any] | None = None, **kwargs):
variables = variables or getattr(self._templar, "available_variables", {}) or {}
return [resolve_host(variables, self._loader, getattr(self, "_templar", None))]