From 1628f8a2ed73f90c01a391ec7aa45f6664df7ada Mon Sep 17 00:00:00 2001
From: MrAlders0n <55921894+MrAlders0n@users.noreply.github.com>
Date: Thu, 28 May 2026 22:46:24 +0000
Subject: [PATCH] bake db migrations into app on start (#12)

---
 .build/Dockerfile           |  7 +++++--
 .build/docker-entrypoint.sh | 27 +++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 2 deletions(-)
 create mode 100644 .build/docker-entrypoint.sh

diff --git a/.build/Dockerfile b/.build/Dockerfile
index 80cd504..257f8db 100644
--- a/.build/Dockerfile
+++ b/.build/Dockerfile
@@ -6,7 +6,10 @@ COPY . .
 RUN go build -o tower ./cmd/tower
 
 FROM alpine:3.19
-RUN apk add --no-cache ca-certificates tzdata
+RUN apk add --no-cache ca-certificates tzdata postgresql-client
 WORKDIR /app
 COPY --from=builder /app/tower .
-ENTRYPOINT ["./tower"]
+COPY db/migrations/ ./migrations/
+COPY .build/docker-entrypoint.sh .
+RUN chmod +x docker-entrypoint.sh
+ENTRYPOINT ["./docker-entrypoint.sh"]
diff --git a/.build/docker-entrypoint.sh b/.build/docker-entrypoint.sh
new file mode 100644
index 0000000..0f7573f
--- /dev/null
+++ b/.build/docker-entrypoint.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+set -e
+
+if [ -n "$POSTGRES_DSN" ]; then
+  echo "Running database migrations..."
+
+  psql "$POSTGRES_DSN" -c "CREATE TABLE IF NOT EXISTS schema_migrations (
+    filename TEXT PRIMARY KEY,
+    applied_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+  );"
+
+  for f in /app/migrations/*.sql; do
+    name=$(basename "$f")
+    already=$(psql "$POSTGRES_DSN" -tAc "SELECT 1 FROM schema_migrations WHERE filename = '$name'")
+    if [ "$already" != "1" ]; then
+      echo "  Applying $name..."
+      psql "$POSTGRES_DSN" -f "$f"
+      psql "$POSTGRES_DSN" -c "INSERT INTO schema_migrations (filename) VALUES ('$name');"
+    else
+      echo "  Skipping $name (already applied)"
+    fi
+  done
+
+  echo "Migrations complete."
+fi
+
+exec ./tower "$@"