feat: add pg_cron extension

16/Dockerfile

@@ -14,17 +14,40 @@ RUN mkdir -p /tmp/lib /tmp/share /tmp/bin \
     && cp -r $(ls . | grep timescaledb-) /tmp/bin
 
 RUN echo -e "[INFO] TimescaleDB lib files to be installed: \n$(ls /tmp/lib)"
+RUN echo -e "[INFO] TimescaleDB share files to be installed: \n$(ls /tmp/share)"
 
-# PostgreSQL Server
+# PostgreSQL Server (base image)
 FROM docker.io/bitnami/postgresql:16.6.0 AS postgresql
 
+# pg_cron
+FROM postgresql AS pg_cron
+
+# Switch to root
+USER root
+
+# Select and copy the pg_cron extension files
+RUN install_packages --no-install-recommends git gcc make llvm clang \
+    && git clone https://github.com/citusdata/pg_cron.git \
+    && cd pg_cron \
+    && make install
+
+RUN echo -e "[INFO] pg_cron lib files to be installed: \n$(ls /opt/bitnami/postgresql/lib | grep pg_cron)"
+RUN echo -e "[INFO] pg_cron share files to be installed: \n$(ls /opt/bitnami/postgresql/share/extension | grep pg_cron)"
+
+# PostgreSQL Server
+FROM postgresql AS final
+
 # TimescaleDB tools
 COPY --from=timescaledb /tmp/bin/* /usr/local/bin/
 
 # TimescaleDB extension (We will install last 3 versions)
 COPY --from=timescaledb /tmp/lib/* /opt/bitnami/postgresql/lib/
 COPY --from=timescaledb /tmp/share/* /opt/bitnami/postgresql/share/extension/
 
+# pg_cron extension
+COPY --from=pg_cron /opt/bitnami/postgresql/lib/pg_cron* /opt/bitnami/postgresql/lib/
+COPY --from=pg_cron /opt/bitnami/postgresql/share/extension/pg_cron* /opt/bitnami/postgresql/share/extension/
+
 # TimescaleDB Docker initialization scripts
 COPY --from=timescaledb /docker-entrypoint-initdb.d/*.sh /docker-entrypoint-initdb.d/
 COPY ./initdb/* /docker-entrypoint-initdb.d/

17/Dockerfile

@@ -15,8 +15,26 @@ RUN mkdir -p /tmp/lib /tmp/share /tmp/bin \
 
 RUN echo -e "[INFO] TimescaleDB lib files to be installed: \n$(ls /tmp/lib)"
 
+# PostgreSQL Server (base image)
+FROM bitnami/postgresql:17.2.0 AS postgresql
+
+# pg_cron
+FROM postgresql AS pg_cron
+
+# Switch to root
+USER root
+
+# Select and copy the pg_cron extension files
+RUN install_packages --no-install-recommends git gcc make llvm clang \
+    && git clone https://github.com/citusdata/pg_cron.git \
+    && cd pg_cron \
+    && make install
+
+RUN echo -e "[INFO] pg_cron lib files to be installed: \n$(ls /opt/bitnami/postgresql/lib | grep pg_cron)"
+RUN echo -e "[INFO] pg_cron share files to be installed: \n$(ls /opt/bitnami/postgresql/share/extension | grep pg_cron)"
+
 # PostgreSQL Server
-FROM docker.io/bitnami/postgresql:17.2.0 AS postgresql
+FROM postgresql AS final
 
 # TimescaleDB tools
 COPY --from=timescaledb /tmp/bin/* /usr/local/bin/
@@ -25,6 +43,10 @@ COPY --from=timescaledb /tmp/bin/* /usr/local/bin/
 COPY --from=timescaledb /tmp/lib/* /opt/bitnami/postgresql/lib/
 COPY --from=timescaledb /tmp/share/* /opt/bitnami/postgresql/share/extension/
 
+# pg_cron extension
+COPY --from=pg_cron /opt/bitnami/postgresql/lib/pg_cron* /opt/bitnami/postgresql/lib/
+COPY --from=pg_cron /opt/bitnami/postgresql/share/extension/pg_cron* /opt/bitnami/postgresql/share/extension/
+
 # TimescaleDB Docker initialization scripts
 COPY --from=timescaledb /docker-entrypoint-initdb.d/*.sh /docker-entrypoint-initdb.d/
 COPY ./initdb/* /docker-entrypoint-initdb.d/

docker-entrypoint.sh

@@ -8,20 +8,25 @@
 # shared preload list, or else it gets overwritten.
 if [ -z "$POSTGRESQL_SHARED_PRELOAD_LIBRARIES" ]
 then
-    POSTGRESQL_SHARED_PRELOAD_LIBRARIES=timescaledb
+    POSTGRESQL_SHARED_PRELOAD_LIBRARIES=timescaledb,pg_cron
 else
-    POSTGRESQL_SHARED_PRELOAD_LIBRARIES="$POSTGRESQL_SHARED_PRELOAD_LIBRARIES,timescaledb"
+    POSTGRESQL_SHARED_PRELOAD_LIBRARIES="$POSTGRESQL_SHARED_PRELOAD_LIBRARIES,timescaledb,pg_cron"
 fi
 export POSTGRESQL_SHARED_PRELOAD_LIBRARIES
 
-# If it's already init, run timescaledb-tune again (to update the config if needed)
+# If it's already init, run timescaledb-tune and update pg_cron db (to update the config if needed)
 if [ -f "$POSTGRESQL_VOLUME_DIR/.user_scripts_initialized" ]; then
     # Run timescaledb-tune script
     info "Running timescaledb-tune to update the configuration..."
     /docker-entrypoint-initdb.d/001_timescaledb_tune.sh
     info "timescaledb-tune finished"
 fi
 
+# If pg_cron config file does not exist, create it
+if [ ! -f "$POSTGRESQL_CONF_DIR/conf.d/pg_cron.conf" ]; then
+    echo "cron.database_name = '$POSTGRESQL_DATABASE'" > "$POSTGRESQL_CONF_DIR/conf.d/pg_cron.conf"
+fi
+
 # Fall through to the original entrypoint. Note that we use exec here because
 # this wrapper script shouldn't change PID 1 of the container.
 exec "/opt/bitnami/scripts/postgresql/entrypoint.sh" "$@"

initdb/001_pg_cron.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/postgresql-env.sh
+
+export PGPASSWORD="$POSTGRESQL_PASSWORD"
+
+if [ "${POSTGRESQL_POSTGRES_PASSWORD}" != "" ]; then
+    export PGPASSWORD=${POSTGRESQL_POSTGRES_PASSWORD}
+fi
+
+# Install pg_cron extension
+psql -U postgres -c "CREATE EXTENSION IF NOT EXISTS pg_cron"
+
+# Configure pg_cron to use POSTGRESQL_DATABASE
+echo "cron.database_name = '$POSTGRESQL_DATABASE'" > $POSTGRESQL_CONF_DIR/conf.d/pg_cron.conf