The package cache was configured in six places at once: the nginx upstream
map, the consumer compose override, pip.conf, .npmrc, the apt sources and the
twenty ensure_proxy_repo calls that bootstrap Nexus each spelled the same
hostnames, repository names and suites by hand. A new upstream meant editing
five files and hoping none was missed, and the docs told contributors to do
exactly that.
A role now declares what it needs under cache: in its meta/networks.yml, and
everything else is derived from it. svc-cache-package holds the general
upstreams; web-svc-libretranslate holds its own. All nine derived files are
generated and gitignored, so a second spelling of a hostname cannot exist.
utils.cache.hosts reads the declarations without PyYAML, because the .env
generator reaches them before any dependency is installed; it raises rather
than truncate when a comment sits at column 0 inside the block, which would
otherwise drop every declaration below it in silence. utils.cache.records
owns the Nexus record format and the Ubuntu mirror resolution, so the dev
stack and the role provision from one rendering.
A build may only resolve a cached host it can verify: the plain-HTTP hosts
are hijacked for every image, and the TLS hosts only for an image whose
Dockerfile installs the frontend CA. Hijacking all of them would fail every
pip and npm build with CERTIFICATE_VERIFY_FAILED.
svc-cache-package deploys the cache and its TLS frontend by calling the same
shell scripts the dev stack calls, rather than reimplementing them as tasks.
The role is invokable through the new svc-cache category and inert until a
host carries it.
Verified: the twenty Nexus payloads, the fifteen nginx server blocks and all
seven package-manager configs are byte-identical to the hand-written files
they replace, and the new category adds one role to the deploy order while
preserving the relative order of the other 180.
The role has not been deployed yet.
Every script a role ships now lives under `files/<language>/`, and the unit
suite is split the same way: `tests/unit/python/` beside new sibling trees for
the other languages. `tests/lint/filesystem/test_role_files_layout.py` keeps it
that way; directories whose shape is dictated from outside carry a `.nocheck`
naming the constraint (Docker build contexts, WordPress mu-plugins, the Joomla
extension, Odoo addons, Playwright suites, the `files/test/test.sh` harness
that `test-e2e-cli` resolves generically).
This cannot be applied in halves. Moving a file and repointing what names it
are the same change: 14 references resolve only at deploy time, so the tree is
green either before or after, never between.
Those 14 were found by static resolution over every reference class, not by the
test suite -- a full `make quality-high` was green while all of them were
broken:
* 7 `src:` values built from a role variable holding a bare filename
(svc-bkp-remote-2-local, decidim, espocrm, friendica, joomla, pixelfed x2).
The variable doubles as the destination name inside the container, so the
language segment belongs at the call site, not in the variable.
* `sys-service/tasks/04_base.yml` resolved every consumer's systemd script
through `first_found(..., errors='strict')` over `files/script.{sh,py}`.
18 roles ship exactly that and have no template fallback: the play would
have died on each.
* `sys-front-inj-javascript` fell back to `<role>/files/javascript.js`; the
interface now reads `files/javascript/javascript.js`.
* `sys-front-inj-logout/templates/head_sub.j2` built the cache-busting mtime
path through `path_absolute(... 'files', ...)`.
* 4 `ansible.builtin.script:` invocations naming a bare command
(pull.py, prune.sh, set_postgres_superuser_password.sh, ganesha-serve.sh).
* `dev-python/files/shell/install.sh` pointed at a sibling role's script.
Depth-dependent paths inside the moved trees were bumped accordingly: 59
`parents[N]` computations, 12 relative climbs, and the per-role recover CLI,
whose path `cli/administration/recover/recoverers.py` still assembled from the
pre-move location.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbach
