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참고/firecrawl-main/apps/nuq-postgres/Dockerfile

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+# Build a Postgres image that runs nuq.sql during initdb
+
+ARG PG_MAJOR=17
+FROM postgres:${PG_MAJOR}
+
+# Install pg_cron for the specified Postgres major version
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        postgresql-${PG_MAJOR}-cron; \
+    rm -rf /var/lib/apt/lists/*
+
+# Ensure pg_cron is preloaded on first startup by modifying the initdb template
+# This must be set before the first server start (init scripts run after start)
+RUN set -eux; \
+    conf_sample="/usr/share/postgresql/${PG_MAJOR}/postgresql.conf.sample"; \
+    sed -ri "s/^#?shared_preload_libraries\s*=.*/shared_preload_libraries = 'pg_cron'/" "$conf_sample"; \
+    printf "\n# Added for pg_cron\ncron.database_name = 'postgres'\n" >> "$conf_sample"
+
+# Copy nuq.sql so it is executed as part of the initdb sequence
+COPY nuq.sql /docker-entrypoint-initdb.d/010-nuq.sql