build: bake postgresql-client + seed files into tripbot image (#473)

* build(tripbot): bake postgresql-client + seed files into the image

Adds postgresql-client to the runtime apt install, copies
infra/docker/bin/seed-db.sh to /usr/local/bin/seed-db, and copies
db/seed/ to /seed — prerequisites for the k8s seed Job that runs
the script in-cluster without a volume mount.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(seed-db): remove runtime apt-install; add idempotency check

postgresql-client is now baked into the image, so the runtime
apt install is removed. The CSV path moves from the volume-mounted
repo path to /seed (in-image). Adds a row-count check so re-runs
against a non-empty videos table exit cleanly instead of failing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* build(tripbot): install postgresql-client on-demand in seed script

Removes postgresql-client from the image's base apt install — it's
only needed by the one-time seed Job, so baking it into every
tripbot container is wasteful. The seed script installs it at runtime
with --no-install-recommends instead (leaner than the original
full postgresql package).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* build: un-exclude infra/docker/bin from .dockerignore

The .dockerignore excluded all of infra/ (with only infra/docker/obs
carved back out). seed-db.sh lives in infra/docker/bin/ and needs to
be reachable by the COPY in the Dockerfile.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dmerrick

.dockerignore

@@ -1,5 +1,6 @@
 .env.*
 infra
 !infra/docker/obs
+!infra/docker/bin
 assets/video
 log

infra/docker/bin/seed-db.sh

@@ -2,7 +2,14 @@
 
 set -ex
 
-apt update
-apt install -y postgresql
-psql "postgres://$DATABASE_USER:$DATABASE_PASS@$DATABASE_HOST/$DATABASE_DB" \
-  -c "\copy videos FROM 'db/seed/videos.csv' DELIMITER ',' CSV HEADER;"
+apt-get install -y --no-install-recommends postgresql-client
+
+DSN="postgres://$DATABASE_USER:$DATABASE_PASS@$DATABASE_HOST/$DATABASE_DB"
+
+COUNT=$(psql "$DSN" -tAc "SELECT COUNT(*) FROM videos;")
+if [ "$COUNT" -gt 0 ]; then
+  echo "videos table already has $COUNT rows — skipping seed"
+  exit 0
+fi
+
+psql "$DSN" -c "\copy videos FROM '/seed/videos.csv' DELIMITER ',' CSV HEADER;"

infra/docker/tripbot/Dockerfile

@@ -28,6 +28,10 @@ COPY --from=builder /out/tripbot /usr/local/bin/tripbot
 COPY --from=migrate/migrate:4 /usr/local/bin/migrate /usr/local/bin/migrate
 COPY db/migrate /migrations
 
+# Bundle seed script + data so the k8s seed Job is self-contained.
+COPY infra/docker/bin/seed-db.sh /usr/local/bin/seed-db
+COPY db/seed /seed
+
 ARG VERSION=dev
 ARG SHA=unknown
 RUN mkdir -p /etc/tripbot \