Enabling a plugin could not make its routes live. Flask refuses
register_blueprint once the app has served a request, and each gunicorn worker
holds its own app object, so registering in the worker that served the toggle
would leave the others answering 404 for the same URL.
Worse, the window before the restart was a window in which workers disagreed
about reality. Four defects, all of which answered 200 while going wrong:
- Enabling a not-yet-installed plugin ALWAYS 500'd on a running app:
install_plugin ran the migrations, updated the registry, and only then called
register_blueprint and hit Flask's assertion. The toggle half-applied and
reported failure.
- Enabling one plugin could hang the entire site. @jwt_required does SELECT
users, so the request's transaction sits open holding a shared metadata lock;
the plugin's migration runs on its own Alembic connection and needs an
EXCLUSIVE lock on users for a foreign key. Each waits on the other, and MySQL
grants metadata locks in request order, so every later login queued behind the
pending exclusive. Observed twice as a total outage from one plugin toggle.
- Each worker rewrote the WHOLE registry file from a snapshot taken at boot, so
concurrent enables erased each other: seven enables persisted three, with
HTTP 200 for all seven.
- Dependency checks read that same stale snapshot, refusing a plugin whose
dependency another worker had just enabled.
Routes still require the process to restart; what changes is who initiates it.
Each worker fingerprints instance/plugins.json at boot and exits gracefully when
it changes, and the supervisor replaces it. That is the primitive gunicorn's own
--reload uses. Recycles are staggered per worker so the pool rolls rather than
dropping at once, and the exit is scoped to gunicorn: on Windows sys.exit() in a
daemon thread ends the thread rather than the process, so IIS keeps the manual
restart until that path is proven on the Windows VM.
The registry now merges under an exclusive lock and replaces atomically, saves
only the entry being changed, and re-reads before any decision is made from it.
ADR-020 records the decision; ADR-013 is amended where it said the UI must tell
the operator to restart. The restart requirement and the honesty requirement
both stand - only the manual step is removed, and only where it is proven.
(cherry picked from commit 9d6342b3ab)
An admin generates a short-lived token in Settings > Endpoints > Endpoints and
copies the command it produces. A tech runs that one line in an elevated
PowerShell on a PC with no agent:
powershell -ExecutionPolicy Bypass -c "irm https://<server>/shopdb/api/
endpoints/siteagent/bootstrap.ps1?t=<token> | iex"
The script refuses to run unelevated, refuses a PC that already has the agent
(a managed bay gets it from GE-Enforce), downloads the package the existing
builder produces, checks both binaries against the hashes the server baked in,
installs with NO shared key, and reports what happened. The PC then asks to
enroll and waits for an admin to approve it, which the script watches for
locally for two minutes before exiting.
- New endpointbootstraptokens table and migration
endpoints0024bootstraptokens: hash only, expiry, use count, revoke.
- Admin routes to generate, list and revoke tokens; the secret is shown once.
- Two token-only routes: the script, and the package (which spends a use).
Anything wrong with the token answers 404 rather than confirming it exists,
both are rate limited per address and both are audited with the caller.
- The package builder is now shared rather than duplicated, and a bootstrap
package can never carry a collector key.
Per-PC credentials (replaces the 09-14 client-certificate attempt):
- POST /api/endpoints/enroll issues a credential to a PC that matches exactly
one computer by hostname and BIOS serial and has none yet. Anything else
(unknown or duplicate hostname, serial mismatch, already enrolled) waits as
a request an admin approves or rejects. The agent's persisted nonce binds an
approved request to the PC that asked.
- One auth helper serves every agent route. With X-Endpoint-Credential the
asset comes from the credential and a request naming another PC gets 403
ASSET_MISMATCH. The shared key still works for PCs that have not enrolled,
is refused (401 SHARED_KEY_REFUSED) for any PC that has, and can be switched
off. A revoked credential gets 401 CREDENTIAL_INVALID so the agent
re-enrolls.
- The core collector accepts the credential for the computers, printers and
endpoints collectors through two new plugin hooks exposed on shopdb.api
(contract 0.33.0), and refuses the shared key for enrolled PCs.
- Admin API: enrollment list, approve, reject, revoke (un-enroll), settings.
Migration API: per-PC readiness with blockers, and upgrade waves that
package the agent once and queue the existing agent upgrade per PC.
- Migration 0023 creates endpointcredentials, endpointenrollrequests and
endpointmigrationwaves, drops the certificate columns from assets where
test databases have them, and renames app_fingerprint to appfingerprint.
0021 and 0022 keep their ids but no longer alter the core assets table.
- Removed: client_cert.py, certificate renewal, the unauthenticated
/test/client-cert route, nginx client certificate forwarding and the agent
certificate script. The client-cert header could be forged on IIS, the key
was readable by users, and the shared key remained a fallback.
- GET /settings/server-cert returns the SPKI SHA-256 pin for GE-Enforce.
Review fixes:
- report_command_result used g without importing it; every result was a 500.
- collect_log refuses setup answer files, appsettings, agent directories and
key files at enqueue.
- Fleet alerts: alerttimeout and alertfleet agree with the migration, the
scope is validated and a malformed scope no longer reaches the whole fleet,
and the ack race no longer raises NameError.
- A refused break-glass override leaves no hold and no audit row.
- Agent upgrade checks locks and permissions before repackaging, and writes
the package atomically.
- Server certificate upload validates the pair before replacing files;
generation no longer builds an openssl config from user input; audit rows
are actually written.
- Health evaluation runs in a savepoint so a caught error cannot lose the
check-in.
- Required-app policies are found by appid, survive renames, and deleting an
app deactivates policies that still name it. The UI and API now say such a
policy only takes effect inside a business policy.
- Backfill handles duplicate fingerprints and rolls back a failed batch.
- Plugin settings routes skip a plugin whose hook raises.
- The setup token is no longer printed to the log.
- The naming gate checks top-level files again and handles odd file names.
- Removed root scratch scripts, one of which carried a token.
- Rewrote the fleet alert scheduling and app delta tests on real fixtures.
The new table was declared as a model and created by migration 7d51, but never added to the explicit ownership map. test_owned_tables_match_declared_models caught the drift.
Not cosmetic bookkeeping: the per-plugin migration uses this map to decide which tables it owns, so an unlisted table is invisible to plugin-scoped baseline and prune. The prune path would have treated endpointlogcollections as unowned - collected logs surviving or vanishing on a schema operation that should have been deterministic about them.
The wj merge brought in a half-built fleet alert feature: server-side UI
behaviour still being stood up over a delivery proof of concept. It left
five red tests. This clears them and fixes a real hole underneath.
The cross-machine guard never ran. acknowledge_fleet_alert read .assetid
off _resolve_asset_for_hostname, which returns the id itself, so the
check raised AttributeError on every call and answered 500. That guard is
what stops one endpoint acknowledging another's alert, and the collector
key is shared across the fleet, so until now any bay could clear an alert
on another machine's behalf. Compare the id directly.
Gate both alert routes the way the rest of the agent channel is gated.
They are collector-key authenticated, not JWT+role, because a shop floor
bay has no user session - the same shape as claim_next_command and
upload_operator_report. Declared in the authz allowlists with the reason,
rather than inventing a permission no agent could hold.
Settle the delivery contract ahead of the durable agent work. The poll
response is authoritative for a host: every alert that should be live on
it right now. An alert absent from the feed is the agent's instruction to
retire the pending toast, which is how a server-side close or cancel
reaches a machine already displaying one. Acknowledgement is terminal per
product decision, so a close after an ack is a no-op and the agent can
retry a queued ack safely. A toast that merely timed out is not an
acknowledgement.
Stop reaching past the plugin contract surface for the mailer. One import
was a plain redirect; the other pulled a private helper to pre-check
recipients, duplicating what send_alert already does. It also returned
early when no email recipients existed, which silently suppressed the
independent webhook leg - misconfigured SMTP was dropping Teams alerts.
Register NotificationAcknowledgement in get_models() and give the
notifications plugin ownership of notificationacknowledgements, then move
the expected head to notifications0006fleetalerts.
Add the coverage whose absence let the .assetid bug ship. Thirteen tests
over gating, authoritative-feed withdrawal, terminal and idempotent
acknowledgement, per-asset scoping, and the cross-machine guard. Five of
them fail against the pre-fix handler.
Remaining suite failures are pre-existing and local: the symlink scan
needs elevation, and the docs check wants files absent from this checkout.
Exports caller_is_role on the plugin authorization surface. Additive name, so a minor bump. Scoped personal tokens are always refused by it, matching require_role, which stops a plugin from accidentally letting a scoped token inherit role authority from its owner.
Registers the tables added by the endpoint lock and policy hold work (endpointlocks, policyactionholds) plus the endpoint health tables in the alembic template, so plugin migrations see them and the ownership guard does not report them as unclaimed.
Operators had no way to flag a problem PC from the tray. This adds a report path: the tray captures a reason, free-text note, and optional screenshot and the agent uploads it on the collector token to a new operatorreports table linked to the asset. Ships the endpoints 0009 migration so the table exists before the code queries it; the running DB had drifted behind the code and returned HTTP 500 on upload.
Operators need to see when a machine's running services or processes fall outside the desired state defined by policy. This adds a reusable monitor catalog (shipped read-only rows plus user-built local rows), computes drift server-side on agent check-in, and surfaces a warning on the endpoint panels. Remediation stays manual for now; automation can follow once demand is proven. Includes migrations 0006-0008 and the monitors API client.
The endpoint agent already reports an installed-software list (SBOM), but ingress dropped it: the collector schema had no entry for it and there was nowhere to store it, so operators could not see what is installed on a PC.
Persist it as a per-asset snapshot in a new endpointapplications table, replaced on every report (current inventory is what operators ask for, not install history). Add applications to the collector schema and KNOWN_PAYLOAD_KEYS so ingress stops discarding it, a read route for the raw collection, and a collapsed-by-default Installed software panel to surface it. appid is nullable groundwork for a future Managed Applications link; no matcher is wired yet.
Default fuzzy reconcile threshold to 0 and refuse merges when digit runs differ so numbered labels like Bay 311 never bind to Bay 310. Keep edit forms from clearing saved model fields when category filtering hides untyped rows. Includes in-progress computers policy and endpoints command feature work.
curl --fail exited nonzero on the login probe's 400 before the body reached grep VALIDATION_ERROR, so the healthcheck always failed and the container reported unhealthy while the app was fine. Drop --fail so grep decides pass/fail. Also register endpoint tables in PLUGIN_TABLE_OWNERS so plugin migrations can resolve their owned metadata.
Assign printers to a MACHINE and let whichever PC controls it install them, with
the observed half kept strictly apart from the assigned half: a collector report
can never write an assignment row. Adoption is explicit. Adds a singular
relationship type so defaultprinter can mean exactly one, client scripts that
converge a bay's queues and correct a drifted one in place, and a wave gate so a
fleet-wide driver rollout cannot stampede its own share.
On the container side: the compose stack never persisted the instance directory,
so a rebuild discarded plugins.json and every upload. It is a volume now, the
image ships instance/ owned by the app user so the mountpoint is writable, and
the database moves to MySQL 8.4 LTS, which the Windows runbook has recommended
since 8.0 went end of life. The image also could not build at all: the frontend
stage never copied the plugin staging script it runs.
Adds a topology migration guide covering IIS to Docker and back.
Catalog with photos and append-only print-file revisions, a stock
ledger attributing every take/restock/adjust to a badge-resolved
employee, a touch kiosk (scan bin, scan badge, keypad quantity) with a
deliberately open decrement-only take endpoint, 1x0.5in CODE128 bin
labels, low-stock email alerts to selected users, roles, or addresses,
and stock/consumption/by-person reports with a cache-vs-ledger
reconcile. Ships disabled; enable per site. Contract 0.13.0 adds the
mailer and the User/Role models to the plugin surface.
Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin
framework so sister GE Aerospace sites can adopt it. Product version
0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests.
Key entry points:
- docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook
(own-site and subpath deployment methods)
- docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify
- docs/IMPORT-API.md - schema-agnostic legacy data import contract
- scripts/site_imports/wjf/ - West Jefferson reference import loader
- docs/adr/ - twelve accepted architecture decision records
