meta/volumes.yml says where a volume lands inside its container. Wherever a
second file spelled the same path out, the two drifted independently: the mount
moves, the consumer keeps pointing at the old place, and nothing fails until the
process looks for content that is not there. e031b7f61 fixed exactly this for
web-app-moodle; this generalises it and makes the rule hold.
The lookup gains what a caller needs. `targets` maps each mounting service to
its container path, and `target` is the one path an entry mounts at -- present
only when every mount agrees. An entry that lands at different paths per service
omits `target` rather than picking one, and the caller names the service:
"{{ lookup('volume', application_id, 'prometheus_config').target }}"
"{{ lookup('volume', 'web-app-prometheus', 'host_sys').targets['node-exporter'] }}"
66 literals across 48 role files now derive. Replacement only happened where the
path stood alone -- /srv/app inside /srv/app/data is a different path -- and
every rewritten file was re-parsed, Jinja and YAML alike. Three sites the tool
refused rather than guess were done by hand: zammad's path sat in a Jinja list
literal, seaweedfs' inside a quoted string feeding a filter, and openresty's
/var/run/docker.sock is not a mount target at all but the socket on the host,
which only happens to spell the same string. That one carries the single
nocheck.
tests/lint/repository/spot/test_volumes_path_single_spot.py keeps it that way.
roles/*/files/ is out of scope by construction: it is copied verbatim into an
image and executed there, so a Dockerfile or entrypoint has no Ansible to
evaluate a lookup with.
One defect this found, and it was in the tooling rather than the roles: deciding
ambiguity AFTER filtering short paths made web-app-prometheus' host_sys look
single-valued -- it mounts /sys for cadvisor and /host/sys for node-exporter,
and /sys is below the length filter. The template would have rendered an
undefined `.target`. Both the converter and the rule now decide ambiguity over
every target and filter afterwards, and that call reads targets['node-exporter'].
Verified by resolving rather than by reading: all 70 accesses in the diff were
run against the real registry and every one yields a non-empty path equal to the
literal it replaced. make test-lint: 328 passed.
Not verified: no Ansible render, so a call site whose surrounding context cannot
build the applications registry would still fail at deploy.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Consumer lookup plugins now reach the merged config through the Ansible
lookup loader instead of importing get_merged_applications /
get_merged_domains from utils.cache. The merge stays one cached
implementation surfaced via the applications/config/domains/users lookups;
consumers call lookup_loader.get(...).run() (the compose_networks idiom).
- get_merged_applications walks the whole meta/ tree recursively
(meta/**/*.yml to applications.<app>.<path>, addons and any depth) and
folds the raw meta/volumes.yml subtree onto applications.<app>.volumes
after the templar render so the Jinja source: strings stay unrendered.
- 31 consumer lookups rerouted; providers (applications/config/
applications_current_play/users/domains) and the raw-volume accessors
(volume/nginx) keep the cache import behind # nocheck: lookup-cache-import.
- New lint test_no_cache_imports_in_lookups enforces the contract.
- nfs_flavor is now the flavor SPOT (svc-storage-nfs-server + nfs_client_src
resolve via lookup('nfs_flavor')); removed the unused STORAGE_NFS_FLAVOR
group_var. Extracted extract_default_credentials to
utils/cache/schema_credentials.py to keep applications.py under the cap.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
lookup('volume', role) read the lazily-populated canonical-volumes registry directly, so a lookup running before any consumer built that role (nfs_prep's pre-create loop for an early unpinned engine such as ollama) saw an empty registry and skipped the subdir; the swarm bind mount then failed with 'no such file or directory'. Force get_application_defaults() on a miss, guarded so the populated hot path skips the deepcopy. Adds two guard tests.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Migrate every role's meta/volumes.yml from ad-hoc dict-of-named-volumes
to a canonical dict-of-dicts schema where the YAML key is the semantic
short name and the entry body carries type / name / source / mounts /
nfs / mode / read_only. The optional 'name:' field is the docker volume
name (defaults to the key); the previous 'docker_name:' field is gone.
What's in this commit (210 paths):
Infrastructure (23)
- New filter plugins/filter/{compose,container}_volumes.py — render the
top-level volumes:/configs:/secrets: section and per-service mount
blocks from the canonical meta. container_volumes uses the SEMANTIC
name as per-service mount source so it resolves against compose_volumes'
top-level dict key (docker_name as source produced 'undefined volume'
on swarm).
- New lookup plugins/lookup/{compose,container,volume}_volumes.py.
volume(application_id, name) returns a normalised single entry;
volume(application_id) returns the whole canonical dict.
- utils/cache/applications.py keeps a sibling registry
_CANONICAL_VOLUMES_BY_ROLE outside the merged applications payload so
raw Jinja source: strings never enter the templar walk (root-cause of
the 200x cache-miss + recursive get_merged_applications storm).
- utils/roles/applications/mounts.py — schema validator + normaliser;
list-shape is rejected.
- plugins/lookup/nginx.py: _volume_path_by_name reads canonical directly.
- scripts/tests/deploy/swarm/_context.sh: NFS_VOLUMES extraction handles
both legacy dict and canonical dict shapes.
- roles/svc-prx-openresty/handlers/restart_and_validate.yml: gate
compose-only validate+reload behind a single when-block; swarm uses
service-update instead (bind-mounts of a FILE pin source inode at
task-create time, so atomic write-tmp+rename leaves the running task
on a deleted inode).
- roles/sys-svc-compose/tasks/utils/nfs_prep.yml: switch to
lookup('volume', application_id) | dict2items so NFS subdir
pre-creation works under the new cache split.
Tests (12)
- New strict lints flagging inline mount sections in compose templates,
single-file bind mounts, and legacy lookup('config', ..., 'volumes.X.Y')
call sites — all volume-mount surfaces MUST flow through container_volumes
/ compose_volumes / volume lookups.
- Integration: test_volumes_compose_chain + test_volume_constants_are_lookups
accept both the legacy and the new lookup('volume', app, 'X').name forms
during the migration window.
- Unit tests for the new lookup, filter, mounts helper, plus updated
nginx lookup test.
- Prometheus role-wiring test reads canonical meta for the
alert_rules.yml bind mount.
Role migrations (175)
- 62 meta/volumes.yml converted to dict-of-dicts canonical shape
- 63 templates/compose*.yml.j2 replace inline volumes:/configs:/secrets:
with lookup('container_volumes', application_id, '<service>') |
indent(N) per service + a single trailing lookup('compose_volumes',
application_id) for the top-level block
- 50 vars/main.yml drop dead volume constants and refactor 23 remaining
legacy lookup('config', ..., 'volumes.X.Y') to lookup('volume',
application_id, 'X').Y across 9 roles
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5