eaf0cac321
Adds Discord slash commands with no bot process and no gateway connection: Discord
POSTs each interaction to a FastAPI route, and the app answers it. First command is
/grade <city>, returning today's grade for a curated city from the warm cache
(reusing homepage._grade_city, so it answers well within the 3-second deadline and
costs no upstream quota).
- backend/discord_interactions.py: Ed25519 verification (PyNaCl) over the RAW
request body — Discord probes the endpoint with bad signatures and disables it if
they aren't rejected with 401. Routes PING to PONG and application-commands to
their handler; unknown/unsupported interactions are acknowledged, not errored.
City lookup is exact-name-then-prefix over the population-sorted city set; unknown
or not-yet-warm cities get an ephemeral note.
- app.py: POST {BASE}/discord/interactions, reading request.body() (not json()) so
the bytes match the signature.
- scripts/register_discord_commands.py: one-off upsert of the command definitions
via Discord REST (app id + bot token).
- PyNaCl added to requirements; Discord public-key / app-id / bot-token documented
in the env example. Endpoint URL: https://thermograph.org/discord/interactions.
Claude-Session: https://claude.ai/code/session_013dRZmX9D3JEntfMKWMTWZ8
93 lines
5.4 KiB
Text
93 lines
5.4 KiB
Text
# Copy to /etc/thermograph.env on the VPS and edit.
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# Read by the systemd unit (EnvironmentFile).
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# Port uvicorn binds on loopback. Caddy proxies to this. Keep 8137 unless it clashes.
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PORT=8137
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# Number of uvicorn worker processes. More than 1 stops a single slow upstream fetch
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# (e.g. a cache-miss weather lookup) from blocking every other request — the cause of
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# past brief outages. Prod runs 3; leave unset (defaults to 1) on a small box. Workers
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# share one metrics store (THERMOGRAPH_METRICS_DB, defaulted in the systemd unit) so the
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# ops dashboard still sees the whole picture, and elect one leader for the subscription
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# notifier via a lockfile (THERMOGRAPH_SINGLETON_LOCK, also defaulted in the unit) so its
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# timer-driven upstream sweep runs once, not once per worker. ~200 MB RAM per worker.
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WORKERS=3
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# Base path the app is served under.
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# / -> app at the domain root (Thermograph owns the whole domain —
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# this is what the Caddyfile expects: thermograph.org proxies "/")
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# /thermograph -> app under a sub-path (share the host with other apps, e.g. a
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# portfolio at the root)
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THERMOGRAPH_BASE=/
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# --- SEO: search-engine verification + IndexNow ---------------------------------
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# Ownership-verification tokens, rendered as <meta> tags in every page's <head>.
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# Google Search Console → add property https://thermograph.org → "HTML tag" method
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# → paste just the content="…" value below. (Or verify via DNS TXT and skip this.)
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#THERMOGRAPH_GOOGLE_VERIFY=
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# Bing Webmaster Tools → add site → "HTML Meta Tag" (msvalidate.01) → paste the
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# content value. (Bing can also import verification from Google Search Console.)
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#THERMOGRAPH_BING_VERIFY=
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# IndexNow key (Bing/DuckDuckGo/Yandex instant re-crawl). Auto-generated to
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# data/indexnow_key.txt on first use; set here to pin a specific key.
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#THERMOGRAPH_INDEXNOW_KEY=
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# Public site URL for IndexNow. The deploy hook auto-pings IndexNow after a
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# successful deploy, but only when the URL set changed (a new/removed city), so
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# code-only deploys don't resubmit. `make indexnow` forces a full submit.
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THERMOGRAPH_BASE_URL=https://thermograph.org
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# --- Web Push (VAPID) -----------------------------------------------------------
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# Keys that sign push notifications. If unset, the app generates a pair into
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# data/vapid.json on first run — fine as long as that file PERSISTS (it lives in the
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# writable data dir and survives deploys). PIN them here to be safe: if the keys ever
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# change, every existing browser subscription silently stops receiving (the push
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# service rejects with 401/403), and users must toggle alerts off/on to re-subscribe.
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# Generate a pair: cd backend && ../.venv/bin/python -c "import push,json; k=push._generate(); print('PRIVATE=',k['private_key']); print('PUBLIC=',k['public_key'])"
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#THERMOGRAPH_VAPID_PRIVATE_KEY=
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#THERMOGRAPH_VAPID_PUBLIC_KEY=
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# Contact (mailto: or https URL) sent to push services in the VAPID claim.
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#THERMOGRAPH_VAPID_CONTACT=mailto:you@example.com
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# --- Outbound email --------------------------------------------------------------
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# Delivery goes through a local Postfix null client on 127.0.0.1:25 — see
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# deploy/provision-mail.sh. The app only ever speaks plain SMTP to loopback, so
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# switching between "direct to MX" and "relay through a provider" is a Postfix
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# config change and needs no code change or redeploy.
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#
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# Backends: console (log it, send nothing — the default, right for dev),
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# smtp (actually send), disabled (drop silently).
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# Leave unset until Postfix is provisioned: signups are still collected either way.
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#THERMOGRAPH_MAIL_BACKEND=smtp
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#THERMOGRAPH_SMTP_HOST=127.0.0.1
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#THERMOGRAPH_SMTP_PORT=25
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# Only needed if talking to a remote SMTP server directly instead of local Postfix.
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#THERMOGRAPH_SMTP_USER=
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#THERMOGRAPH_SMTP_PASSWORD=
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#THERMOGRAPH_SMTP_STARTTLS=1
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#THERMOGRAPH_MAIL_FROM=Thermograph <no-reply@thermograph.org>
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#THERMOGRAPH_MAIL_REPLY_TO=
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# Signing secret for email confirmation / password-reset tokens. MUST be set to a
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# fixed value before any such link is mailed: it defaults to a per-boot random
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# value, which would invalidate every outstanding link on each restart.
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# generate with: python -c "import secrets; print(secrets.token_urlsafe(48))"
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#THERMOGRAPH_AUTH_SECRET=
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# --- Discord ---------------------------------------------------------------------
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# Incoming webhook URL for the daily "most unusual right now" post. Create it in the
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# Discord server: Channel → Edit → Integrations → Webhooks → New Webhook → Copy URL.
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# The URL IS the credential — anyone who has it can post as the webhook, so keep it
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# here and never in the repo. Unset => the daily post is disabled (no-op).
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# The post rides the notifier daemon (leader-only), once per day after the feed
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# refresh, so it needs THERMOGRAPH_ENABLE_NOTIFIER on (the default).
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#THERMOGRAPH_DISCORD_WEBHOOK=
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# Slash commands (/grade) are served over Discord's HTTP interactions endpoint by
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# the app itself (no bot process). Set the portal's "Interactions Endpoint URL" to
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# https://thermograph.org/discord/interactions. These come from the Developer Portal:
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# - PUBLIC_KEY: General Information -> Public Key (used to verify every request).
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# - APP_ID / BOT_TOKEN: only needed to (re)register the commands, via
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# scripts/register_discord_commands.py. The bot token is a credential.
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#THERMOGRAPH_DISCORD_PUBLIC_KEY=
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#THERMOGRAPH_DISCORD_APP_ID=
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#THERMOGRAPH_DISCORD_BOT_TOKEN=
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