feat(migration) add migration

migration/migration.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+set -e
+
+PGPASSFILE="/root/.pgpass"
+echo "postgres:5432:${POSTGRES_DB}:${POSTGRES_USER}:${POSTGRES_PASSWORD}" > "$PGPASSFILE"
+chmod 600 "$PGPASSFILE"
+
+echo "waiting for postgres"
+until pg_isready -h postgres -U "$POSTGRES_USER" -d "$POSTGRES_DB"; do
+   echo "retrying, sleep 2s"
+   sleep 2
+done
+echo "db ready, running migrations"
+for file in /migrations/*.sql; do
+  echo "applying $file"
+  psql -h postgres -U "$POSTGRES_USER" -d "$POSTGRES_DB" -f "$file"
+done
+echo "migration complete"