diff --git a/modules/postgresql.sh b/modules/postgresql.sh
new file mode 100644
index 0000000..6177e0a
--- /dev/null
+++ b/modules/postgresql.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+mod_postgresql() {
+	verbose "[POSTGRESQL] running..."
+	for db in "${POSTGRESQL_TARGETS[@]}"; do
+		opts=""
+		[ "$POSTGRESQL_USER" != "" ] && opts="$opts -U ${POSTGRESQL_USER}"
+		[ "$POSTGRESQL_HOST" != "" ] && opts="$opts -h ${POSTGRESQL_HOST}"
+		[ "$POSTGRESQL_PORT" != "" ] && opts="$opts -p ${POSTGRESQL_PORT}"
+		if [ "$db" = "__ALL__" ]; then
+			opts="$opts -A"
+			dbname="all"
+		else
+			opts="$opts $db"
+			dbname=$db
+		fi
+		fn="${BACKUP_DIR}/$HOSTNAME-postgresql-${dbname}-$TODAY.sql.bz2"
+		verbose "[POSTGRESQL] backup up database: $db"
+		if [ "$POSTGRESQL_ENCRYPTION_KEY" ]; then
+			# decrypt with 'openssl enc -d -bf -pass pass:<password> -in infile -out outfile'
+			verbose "[POSTGRESQL] cmd: pg_dump $opts | bzip2 | openssl enc -e -salt -bf -pass pass:$POSTGRESQL_ENCRYPTION_KEY >$fn"
+			pg_dump $opts | bzip2 | openssl enc -e -salt -bf -pass pass:$POSTGRESQL_ENCRYPTION_KEY >$fn
+		else
+			verbose "[POSTGRESQL] cmd: pg_dump $opts | bzip2 >$fn"
+			pg_dump $opts | bzip2 >$fn
+		fi
+		[ $? -eq 0 ] || die "ERROR: command did not complete successfully"
+		NEW_BACKUPS="$NEW_BACKUPS $fn"
+	done
+}