# Deploying PIG

PIG is an API/web container, a private Piggy worker/chat container and Postgres,
behind any reverse proxy that terminates TLS. Nothing here is specific to a
particular host.

## 1. DNS

Point the apex and `www` at the machine. Both must resolve before the proxy can
obtain a certificate.

```
A   primeintellectgrowth.com       -> <your IP>
A   www.primeintellectgrowth.com   -> <your IP>
```

## 2. Configuration

```bash
cp .env.example .env    # then edit
```

The values that must be set for a production start:

| Variable | Why |
|---|---|
| `POSTGRES_PASSWORD` | Generate a fresh one; never reuse another service's |
| `PIG_PUBLIC_URL` | The single origin the app is served from |
| `SUPABASE_URL` / `SUPABASE_ANON_KEY` | Authentication. The app refuses to start in production without a Supabase URL, because it would otherwise serve the whole CRM unauthenticated |
| `PIG_ADMIN_EMAILS` | Who may administer. **Every address here must already have an account** — an unregistered address listed as an admin is a standing offer of admin rights to whoever claims it first |
| `PIGGY_INFERENCE_API_KEY` | Model credential held only by the Piggy process |
| `PIGGY_INTERNAL_TOKEN` | A generated 32+ character bearer token shared only by API and Piggy |

Optional: `PRIME_API_KEY` (scope it to `Availability → Read` only),
`PIGGY_ENABLED`, and the Slack and Buzz credentials.

Piggy listens on `piggy:8931` inside the Compose network. The port is exposed to
other containers but never published to the host, and Caddy must not route to
it. The CRM API authenticates the user, forwards only bounded chat context, and
uses `PIGGY_INTERNAL_TOKEN` in an Authorization header. Never put that token in
a query string, where proxies and access logs can retain it.

## 3. Start

```bash
docker compose -p pig up -d db
docker compose -p pig run --rm --no-deps app pnpm exec tsx packages/db/src/migrate.ts
docker compose -p pig up -d --build app
docker compose -p pig run --rm --no-deps app pnpm exec tsx packages/db/src/seed/index.ts   # optional
```

**Migrate from a one-off container, before the app starts — not with `exec`.**
`exec` needs a running app to attach to, and a release that queries a table its
migration has not yet created crash-loops before you can attach to it. You then
have a container restarting every few seconds and no way in. `run --rm
--no-deps` uses the same image without the app, and without starting its
dependencies twice. This is what commit d4d7095 changed and it is what
`scripts/deploy.sh` does.

When Piggy is enabled, start its private profile as well:

```bash
docker compose -p pig --profile piggy up -d --build
```

Use `-p pig`. A compose project that shares a name with a neighbouring stack
will adopt its volumes, which is a memorable way to lose a database.

## 4. Reverse proxy

See `Caddyfile.example`. Serve the app and API from the **same** origin.

Two things that will otherwise cost you an hour:

- **If other sites on the host use `bind <address>`, yours must too.** Caddy
  groups site blocks into servers by listen address. A block without `bind`
  lands in a *separate* server on `:443`, and the more specific listener wins
  for traffic arriving on that address — which is all public traffic after NAT.
  The symptom is a valid certificate, a 200 response, an empty body, and none
  of your headers. It looks like the app is broken; it is that the request
  never reached it.

- **The CSP must carry the hash of the inline theme script** in `index.html`.
  That script sets light or dark before first paint so dark-mode users do not
  get a white flash. Editing it changes the hash and CSP will silently block
  it — the browser console prints the hash it expects.

  **That hash exists in three places, and only two of them are checked.**

  | Copy | Checked by |
  |---|---|
  | `.gitea/workflows/ci.yml` (the `expected` constant) | itself, on every run |
  | `deploy/Caddyfile.example` | nothing — it is an example |
  | **the live `Caddyfile` on the host** | **nothing at all** |

  The live one is the only copy that decides whether a browser runs the script.
  Nothing in this repository can see it, CI cannot fail on it, and the failure
  is a white flash for dark-mode users with no error anywhere. Editing that
  script means editing all three by hand and reloading Caddy.

## 5. Verify

```bash
curl -s https://primeintellectgrowth.com/api/health
# {"ok":true,"service":"pig","version":"0.1.0"}
```

Check the **public origin**, not just `127.0.0.1:8920`. The `bind` failure
above answers with a valid certificate, HTTP 200 and an empty body, which
satisfies every check that only asks whether something responded.
`scripts/deploy.sh` now asserts the body is non-empty and contains the
application's mount point for this reason.

## Learn videos

PIG hosts its own Learn videos. There is no video service to configure, no
embed host and — because a native `<video>` is not an iframe — nothing to add
to the proxy's `frame-src`. The files are covered by `default-src 'self'`.

### Where they live

| | |
|---|---|
| Host directory | `PIG_MEDIA_HOST_DIR`, normally `/opt/pig/media` |
| Inside the container | `/app/media`, bind-mounted **read-only** |
| Read by the app from | `PIG_MEDIA_DIR` (compose sets it to `/app/media`) |
| Served at | `/media/learn/<filename>` |
| From source, no container | `PIG_MEDIA_DIR=./media`, relative to the repository root |

```bash
sudo mkdir -p /opt/pig/media
sudo chown "$USER" /opt/pig/media
# then in /opt/pig/.env
#   PIG_MEDIA_HOST_DIR=/opt/pig/media
```

**Create the directory before `compose up`.** Docker creates a missing bind
source itself, as an empty directory owned by root — every video then 404s and
you cannot copy a file in without `sudo`.

The mount is read-only. PIG never writes a video: a file arrives by being
copied onto the host, so the write path is not reachable over HTTP at all.
Deploys do not touch the directory, and neither does a rollback — the videos
outlive any particular release.

### Naming: content-addressed, and why

A filename is `<slug>.<hash>.<ext>`, for example
`pig-tour.7f3a91c2.mp4`. Only `[A-Za-z0-9._-]` is accepted, with `mp4`, `webm`
or `m4v` as the extension; anything else is refused both as a stored source and
as a file read.

```bash
slug=pig-tour
hash=$(sha256sum "$slug.mp4" | cut -c1-8)
mv "$slug.mp4" "$slug.$hash.mp4"
```

The hash is load-bearing, not decoration:

**The media FILES are served unauthenticated. The LISTING is not.** Who learns
that a video exists — its title, its track, whether it is code-visible at all —
is decided by `/api/learn` and `/api/learn/public`. The bytes are handed to
anyone who can name the file. This is how every video platform works: a gated
manifest in front of segments on an open CDN. It is also what a `<video>`
element requires, since a media element re-requests byte ranges on every seek
and carries no bearer token while doing it.

*What it costs.* A URL, once shared, is a permanent public link to that video.
Someone given the share code can copy the `src` out of the page and post it,
and **rotating the Learn access code does not close it**. The remedies are to
rename the file (a new hash, therefore a new URL) or delete it. We accept that:
these are product demos meant to be shareable with the code. The material that
must never leak is the supply and demand concept tracks, and those are gated by
the listing — which is where the boundary genuinely is.

*What the hash buys.* There is no directory index and a wrong guess is a flat
404, so an unguessable name makes the exposure "whoever has the link" rather
than "the internet". That is precisely an unlisted video.

### Publishing one

```bash
cp pig-tour.7f3a91c2.mp4 /opt/pig/media/
pnpm db:demo -- --hosted     # inserts rows for the files that are present
```

The seed discovers files by slug, so the hash never has to be written into the
manifest. It is idempotent — the unique key on `(track, provider, external_id)`
does that work — and it inserts a row **only when the file is on disk**, because
a Learn card whose video 404s reads as a broken product rather than a missing
one. Rows for files that have since disappeared are reported, never deleted:
deleting them would empty the curriculum the first time someone ran the seed
with the media directory unmounted.

`pnpm db:demo -- --clear` removes the `DEMO — ` rows and leaves these alone.
`pnpm db:demo -- --clear-hosted` removes these and leaves the files on disk.

### Checking it

```bash
curl -sI https://primeintellectgrowth.com/media/learn/pig-tour.7f3a91c2.mp4
# accept-ranges: bytes          <- without this, the scrubber does nothing
curl -s -r 0-99 -o /dev/null -D - \
  https://primeintellectgrowth.com/media/learn/pig-tour.7f3a91c2.mp4
# HTTP/2 206 ... content-range: bytes 0-99/<size>
```

A 200 where a 206 is expected means something in front of PIG is buffering the
response and dropping the range — the video will play from the start and refuse
to seek.

## Upgrading

### By hand

```bash
bash scripts/deploy.sh
```

It fetches `origin/main`, dumps the database, builds, migrates from a one-off
container, starts the app, and refuses to call the deploy done until the health
endpoint, the unauthenticated-401 gate and the public origin all agree.

### By tag — the normal path

Shipping is two steps and the second one is a human being:

```bash
git tag release-2026-08-13 && git push origin release-2026-08-13
```

That is the entire ship decision. What follows:

1. CI runs the full `verify` job against the tagged commit — the same job a
   push to main runs. A tag does not skip verification.
2. Only if that passes, the `publish` job builds and pushes
   `git.karti.ai/pig/pig:<tag>` and `:<short-sha>` to the Gitea registry.
3. Within five minutes `pig-autodeploy.timer` on the host notices that the
   newest `release-*` tag has a digest different from the running container,
   checks the tree out at that tag, and runs `scripts/deploy.sh` with
   `PIG_IMAGE` set — so it pulls the published image instead of rebuilding it.

**Push to main deploys nothing.** Tagging does.

The direction of travel is the point. No credential on the shared CI runner can
execute anything on this host; the host holds a pull-only registry token and
fetches. That preserves both halves of the constraint written at the top of
`scripts/deploy.sh` — no production key on the runner, and a human still
choosing when it ships.

**Trap: `sudo` throws `PIG_IMAGE` away.** The default sudoers policy sets
`env_reset`, so `PIG_IMAGE=… sudo docker compose …` hands compose an environment
without it and compose interpolates the `pig:local` fallback from
`docker-compose.yml`. The pull then dies with "pull access denied for pig" — and
if it had not died, the migrate, the `up` and the rollback would all have run
the stale local image while the log named the release tag. Every compose
invocation in `deploy.sh` therefore goes through the `dc()` wrapper, which uses
`sudo env PIG_IMAGE=… docker compose …`; `sudo -E` and bare `sudo VAR=val` are
both refused by that same policy. Anything new that shells out to compose must
use the wrapper.

### Rollback

`scripts/deploy.sh` records the image the app container was running before it
replaces it. If the health check, the unauthenticated-401 gate, or the
public-origin marker check fails, it re-tags that image, restarts the app on it,
reports whether the restored version is healthy, and exits non-zero. Previously
those exits left the broken release live, which was fine when a human was
watching the terminal and an outage when the poller ran at 04:00.

**The exit code says what is serving**, because that is the one thing the
on-call needs at 04:00 and `autodeploy.sh` can see nothing else:

| Exit | Meaning |
|---|---|
| 0 | deployed |
| 1 | a gate failed and the **previous** image was restored |
| 3 | a gate failed and the **release under test is still live** |

3 covers the cases where a rollback was not attempted (the fault is not
attributable to the release), where there was no previous image to restore, and
where the restore itself did not come up. `autodeploy.sh` logs a different
sentence for each, so the journal never claims a rollback that did not happen.

Two things it deliberately does **not** do:

- **It does not roll the database back.** Migrations are additive, so the
  previous image runs against the new schema. The dump taken before the
  migration is the escape hatch for when that is not true.
- **It does not roll back when the public origin answers with an EMPTY body.**
  Something terminated TLS and replied, so the fault is the proxy — see `bind`
  below — and the previous image would fail the same check. Exit 3.

It *does* roll back when the origin answers with a **non-empty** body that lacks
the marker. A proxy fault cannot serve a wrong-but-populated page for this
hostname; a bad release can — a changed Vite `base`, a Dockerfile step that
stopped copying `apps/web/dist`. Every earlier gate passes in that state, so
this is the only one that fires, and refusing to roll back would leave the
broken release facing the public.

If curl cannot reach the public origin **at all** (no hairpin for the public
name, egress to 443 filtered), that is not a failed deploy: it is a host that
cannot see itself from outside, and blacklisting the digest over it costs a
release. The script warns and exits 0. On a host where the public name really is
reachable from the host, set `PIG_DEPLOY_REQUIRE_PUBLIC=1` to make it fatal
(exit 3).

`scripts/autodeploy.sh` writes the failed digest to
`/var/lib/pig/failed-release` and will not retry it, so one bad tag does not
become a five-minute restart loop. Delete that file, or publish a new tag, to
try again.

To pin a specific release by hand:

```bash
git checkout --detach refs/tags/release-2026-08-12
PIG_IMAGE=git.karti.ai/pig/pig:release-2026-08-12 bash scripts/deploy.sh
```

Check the tree out at the tag as well as setting `PIG_IMAGE`. The compose file
and the migrations must come from the same commit as the image; with
`PIG_IMAGE` set, `deploy.sh` deliberately does not touch git, precisely so it
cannot drag you back to `main` behind your back.

Migrations are additive and safe to re-run; Drizzle tracks what has been
applied. `deploy.sh` takes a dump before every deploy; take one by hand before
a major upgrade anyway:

```bash
docker compose -p pig exec db pg_dump -U pig pig | gzip > pig-$(date +%F).sql.gz
```

## Installing the release poller

Only on the host that serves production, and only once.

```bash
# 1. A pull-only credential. read:package scope and NOTHING else — a token here
#    that can write packages or push to the repository undoes the reason
#    deployment is not automated from CI in the first place.
sudo install -d -m 0755 /etc/pig
printf '%s' 'gitea-token-here' | sudo tee /etc/pig/registry-token > /dev/null
sudo chmod 0600 /etc/pig/registry-token
sudo chown root:root /etc/pig/registry-token

# 2. Anything the defaults get wrong. Optional; the script assumes
#    /opt/pig, git.karti.ai and pig/pig.
sudo tee /etc/pig/autodeploy.env > /dev/null <<'EOF'
PIG_REGISTRY_USER=pig-deploy
PIG_REPO_DIR=/opt/pig
EOF
sudo chmod 0600 /etc/pig/autodeploy.env

# 3. The units.
sudo cp /opt/pig/deploy/pig-autodeploy.service /etc/systemd/system/
sudo cp /opt/pig/deploy/pig-autodeploy.timer   /etc/systemd/system/
sudo systemctl daemon-reload

# 4. Dry-run it once, in the foreground, before trusting a timer with it.
sudo systemctl start pig-autodeploy.service
sudo journalctl -u pig-autodeploy.service -n 50 --no-pager

# 5. Then arm it.
sudo systemctl enable --now pig-autodeploy.timer
systemctl list-timers pig-autodeploy.timer
```

The service is `Type=oneshot` with no `Restart=`, and the timer is not
`Persistent=true`: a missed poll is caught at the next tick rather than fired
at boot, which is when nobody is watching.

Watch a deploy:

```bash
journalctl -u pig-autodeploy.service -f
```

## On-premises: using your own identity provider

PIG authenticates against any standards-compliant OIDC provider, which is how
an install inside your own network works. Set:

```bash
PIG_OIDC_ISSUER=https://id.yourcompany.internal
PIG_OIDC_AUDIENCE=pig          # the client/app id you registered for PIG
```

That is usually the whole configuration — the JWKS is discovered from the
issuer. On an air-gapped network, set `PIG_OIDC_JWKS_URI` too and no discovery
request is made.

`PIG_OIDC_ISSUER` takes precedence over `SUPABASE_URL`, so the hosted values
can stay in the environment file without quietly taking over.

**Set the audience.** Without it, any token your provider issued for any
application in the same tenant verifies here — a token minted for an unrelated
internal tool would be accepted as a PIG session. PIG warns about this at boot
but cannot refuse, because some providers legitimately issue single-audience
tokens.

**Provisioning stays in PIG.** Authenticating proves who someone is; it does
not make them a member. They still need an invite, and their team and role live
in PIG's database. That is deliberate — your directory should not have to model
"supply lead versus demand member" for one application.

## A note on the auth project

PIG verifies JWTs but authorizes from its own `users` table. If the Supabase
project is shared with another application, its users get **nothing** here until
they are explicitly invited. That is deliberate, and it is why a valid token can
still return `403 needs_profile`.
