`/v1/healthz` returned a static "ok" without touching the database, so the deploy's health probe passed regardless of whether the schema the binary expects had been migrated. An api newer than its schema sailed through the probe and then failed one query at a time on whatever column was missing — the exact failure that job ordering now prevents, with nothing to catch it if that assumption ever breaks again. It now compares the applied migration version against `moments_data::expected_schema_version()`, derived from the migrations compiled into this binary via the same `sqlx::migrate!` MIGRATOR that applies them. There is no second list of expected columns to drift from the real one. schema >= expected -> 200 "ok (schema 6)" schema < expected -> 503, error-level journal line naming both versions no migrations -> 503 cannot read table -> 200 "degraded: schema unverified (...)" A newer schema than expected stays healthy: that is an api rollback under a migrated database, and this binary's queries are still satisfiable. The reverse is not. The degraded case exists because `_sqlx_migrations` is created by moments_rw and reaches moments_ro through the default privileges in asset/sql/bootstrap-moments.sql. A role provisioned before those grants would get 42501, and failing the probe over that would take a working api offline for a permissions detail. `StoreError` gains an `Inaccessible` variant so the two are told apart by SQLSTATE (42501, 42P01) rather than by sniffing message text, and the condition is loud in both the journal and the probe output. Also corrected the startup comment in moments-api: it claimed the api/worker ordering came from systemd dependencies, which cannot be true across two hosts. It comes from deploy.yml. Verified against postgres 16 with the production role split replicated (moments_rw owning the schema, moments_ro granted through bootstrap-moments.sql, plus a legacy role without those grants) and the migrations applied by the real worker binary: current schema -> 200 "ok (schema 6)"; version 6 row deleted -> 503 "schema at 5, this binary expects 6"; table emptied -> 503 "no migrations applied"; legacy role -> 200 degraded, with `curl -fsS` exiting 0 and printing the reason. First confirmed that moments_ro can in fact read `_sqlx_migrations` under the documented grants, so the normal path is the precise one. Refs #8
moments
personal activity timeline and portfolio site. polls public sources (github, gitea, mercurial, bugzilla), stores raw payloads in postgres, and serves a dashboard + project detail views to a react frontend.
successor to the now-defunct grenade-events-react, which depended on mongodb stitch (retired by mongodb in september 2022).
layout
crates/
moments-entities/ # types and dtos (event, source, project/daily summaries)
moments-core/ # ingestion traits, presentation reshape, poller loop
moments-data/ # postgres adapter, migrations, all event-source impls
moments-api/ # axum read-only http api + forge proxy + og image (binary)
moments-worker/ # ingestion daemon (binary)
ui/ # vite + react + swc + typescript frontend
asset/ # systemd, nginx, firewalld, manifest.yml
script/
render-site-conf.py # render the nginx vhost from env (shared by both workflows)
hg-ingest.sh # one-shot local hg clone + psql ingest
certify.sh # letsencrypt cert management
teardown.sh # service removal
db-perms.sh # postgres role + ident setup
architectural conventions follow grenade/architecture/generic.md.
data sources
| source | impl | endpoint | notes |
|---|---|---|---|
| github events | github.rs |
/users/{user}/events |
last 90 days, etag-optimised polling |
| github search | github_search.rs |
/search/commits + /search/issues |
historical backfill, 1000-result cap |
| github repo | github_repo.rs |
/user/repos + /repos/{o}/{r}/commits |
full commit history, no cap, weekly poll |
| gitea | gitea.rs |
user + org activity feeds | auto-discovers orgs, filters by user |
| mercurial | hg.rs |
json-log?rev=author() |
revset-based, one-shot backfill then skip |
| bugzilla | bugzilla.rs |
/rest/bug?creator= |
mozilla bugzilla |
hg repos are archived (mozilla retired hg). the worker skips hg after the first successful scan. for bulk ingestion, script/hg-ingest.sh clones repos locally and inserts via psql, avoiding rate limits on hg-edge.mozilla.org.
frontend routes
| path | page | description |
|---|---|---|
/ or /dash |
dashboard | contribution graphs (daily + all-time weekly) + ranked project cards with forge icons and language info |
/activity |
timeline | filterable activity feed with source toggles, date range slider, and event limit |
/activity/:timespan |
timeline | pre-filtered by date (YYYY-MM-DD) or range (YYYY-MM-DD..YYYY-MM-DD) |
/project/:source/* |
project detail | repo readme, language breakdown bar, per-repo activity timeline |
/cv |
resume | loaded from github gist, markdown-rendered |
shared layout provides nav header (dash, activity, cv + external links) and footer across all routes.
api endpoints
| method | path | description |
|---|---|---|
| GET | /v1/healthz |
liveness probe |
| GET | /v1/events?from=&to=&source=&repo=&limit= |
reshaped timeline items |
| GET | /v1/sources |
per-source summary (count, earliest, latest) |
| GET | /v1/projects |
per-repo aggregated stats (commits, issues, prs, date range) |
| GET | /v1/activity/daily?from=&to= |
per-day event counts for contribution graphs |
| GET | /v1/forge/{source}/*?host= |
proxy to github/gitea apis (avoids cors) |
| GET | /v1/og/contributions.png |
server-rendered contribution graph as png (resvg) |
the og image endpoint renders the all-time weekly contribution graph as svg, rasterizes to png via resvg, and serves it with a 1-hour cache. used as the og:image meta tag for social media previews.
local development
cargo build --workspace
cargo run -p moments-api # serves on 127.0.0.1:8080
cargo run -p moments-worker # starts all pollers
cd ui && npm install && npm run dev # vite dev server on :5173
the api expects a postgres reachable at DATABASE_URL. in production this is an mtls connection using the host cert. for local dev against a throwaway database:
DATABASE_URL=postgres://localhost/moments cargo run -p moments-api
migrations live in crates/moments-data/migrations/ and run automatically on worker startup. the api connects as moments_ro and never runs migrations — the worker (as moments_rw) is the schema owner.
private work is counted but never described: events.public gates the detail
endpoints (events, projects, activity/summary, languages/repos) while the
count endpoints (activity/daily, activity/hourly, sources, languages/daily)
include everything, so a private repo shows up as volume on the contribution graph
without leaking its name or commit messages. because that flag is stamped at ingest
and the pollers are all incremental, the github and gitea sources re-read current
repo visibility on each poll and rewrite events.public across the affected repo's
whole history — a repo flipped to private upstream stops being described, one
flipped back to public reappears.
deployment
deployment is driven by Gitea Actions, not an operator workstation:
.gitea/workflows/deploy.yml— on push tomain(or manual dispatch): lint/test gate, build the api + worker as static musl binaries and the prerendered web bundle, then deploy each component over SSH as thegitea_ciuser with scoped sudo (asset/sudoers.d/)..gitea/workflows/refresh.yml— dailyschedule:(or manual): rebuilds and redeploys only the web tier, re-baking the prerendered crawler snapshot without bouncing the api/worker.
both workflows carry the infra truth (hosts, ports, paths) in their env: blocks and render the nginx vhost through the shared script/render-site-conf.py, which fails the build if any template placeholder is unset rather than shipping it. one-time per-host provisioning (the gitea_ci user, its authorized_keys, the scoped sudoers drop-in) is script/infra-setup.sh.
the shape of the deployment:
| component | notes |
|---|---|
| api | binds the port from api.config.bind; firewalld service moments-api |
| worker | no listening port; pollers only |
| web | per-site nginx ingress; /api/* reverse-proxies to the api host |
| db | postgres mtls, passwordless |
postgres roles moments_rw and moments_ro must exist on the primary, with pg_ident.conf.d/<host>.conf mapping the api host's fqdn to moments_ro and the worker host's fqdn to moments_rw. see asset/sql/bootstrap-moments.sql, asset/postgres/ident.conf.tmpl, and script/db-perms.sh.
the worker's poller tokens are Gitea repo Actions secrets (QUERY_GITHUB_TOKEN, QUERY_GITEA_TOKEN — the bare GITHUB_TOKEN/GITEA_TOKEN names are reserved by Actions). deploy.yml's deploy-worker job substitutes them into the matching {{NAME}} placeholders in worker.env.tmpl at deploy time; secrets come from the runner environment and never touch a command line.
environment variables
worker
| variable | default | description |
|---|---|---|
DATABASE_URL |
required | postgres connection string |
GITHUB_USER |
grenade |
github username |
GITHUB_TOKEN |
optional | github pat for higher rate limits + private events |
POLL_INTERVAL_SECS |
600 |
github events api poll interval |
SEARCH_POLL_INTERVAL_SECS |
86400 |
github search backfill interval |
REPO_POLL_INTERVAL_SECS |
604800 |
github per-repo commit enumeration (weekly) |
GITEA_HOST |
git.lair.cafe |
gitea instance hostname |
GITEA_USER |
grenade |
gitea username |
GITEA_TOKEN |
optional | gitea token for org discovery |
GITEA_POLL_INTERVAL_SECS |
600 |
gitea activity feed poll interval |
HG_HOST |
hg-edge.mozilla.org |
mercurial host |
HG_GROUPS |
build,integration |
hg repo groups to discover |
HG_REPOS |
mozilla-central |
individual hg repos |
HG_AUTHOR_TERMS |
rthijssen,grenade |
author substrings for revset queries |
HG_POLL_INTERVAL_SECS |
86400 |
hg poll interval (skips after first scan) |
BUGZILLA_HOST |
bugzilla.mozilla.org |
bugzilla instance |
BUGZILLA_EMAIL |
rthijssen@mozilla.com |
bugzilla creator email filter |
BUGZILLA_POLL_INTERVAL_SECS |
86400 |
bugzilla poll interval |
api
| variable | default | description |
|---|---|---|
DATABASE_URL |
required | postgres connection string (read-only role) |
BIND_ADDR |
127.0.0.1:8080 |
api listen address |