[Dovecot] Run cronjob at 4:15 AM to remove max aged quarantine items (default: 365 days)

data/Dockerfiles/dovecot/clean_q_aged.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+MAX_AGE=$(redis-cli --raw -h redis-mailcow GET Q_MAX_AGE)
+
+if [[ -z ${MAX_AGE} ]]; then
+  echo "Max age for quarantine items not defined"
+  exit 1
+fi
+
+NUM_REGEXP='^[0-9]+$'
+if ! [[ ${MAX_AGE} =~ ${NUM_REGEXP} ]] ; then
+  echo "Max age for quarantine items invalid"
+  exit 1
+fi
+
+TO_DELETE=$(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT COUNT(id) FROM quarantine WHERE created < NOW() - INTERVAL ${MAX_AGE//[!0-9]/} DAY" -BN)
+mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "DELETE FROM quarantine WHERE created < NOW() - INTERVAL ${MAX_AGE//[!0-9]/} DAY"
+echo "Deleted ${TO_DELETE} items from quarantine table (max age is ${MAX_AGE//[!0-9]/} days)"