watchdog: added postfix-tlspol check (#6691)

data/Dockerfiles/watchdog/watchdog.sh

@@ -450,6 +450,31 @@ postfix_checks() {
   return 1
 }
 
+postfix-tlspol_checks() {
+  err_count=0
+  diff_c=0
+  THRESHOLD=${POSTFIX_TLSPOL_THRESHOLD}
+  # Reduce error count by 2 after restarting an unhealthy container
+  trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
+  while [ ${err_count} -lt ${THRESHOLD} ]; do
+    touch /tmp/postfix-tlspol-mailcow; echo "$(tail -50 /tmp/postfix-tlspol-mailcow)" > /tmp/postfix-tlspol-mailcow
+    host_ip=$(get_container_ip postfix-tlspol-mailcow)
+    err_c_cur=${err_count}
+    /usr/lib/nagios/plugins/check_tcp -4 -H ${host_ip} -p 8642 2>> /tmp/postfix-tlspol-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
+    [ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
+    [ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
+    progress "Postfix TLS Policy companion" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
+    if [[ $? == 10 ]]; then
+      diff_c=0
+      sleep 1
+    else
+      diff_c=0
+      sleep $(( ( RANDOM % 60 ) + 20 ))
+    fi
+  done
+  return 1
+}
+
 clamd_checks() {
   err_count=0
   diff_c=0
@@ -927,6 +952,18 @@ PID=$!
 echo "Spawned mailq_checks with PID ${PID}"
 BACKGROUND_TASKS+=(${PID})
 
+(
+while true; do
+  if ! postfix-tlspol_checks; then
+    log_msg "Postfix TLS Policy hit error limit"
+    echo postfix-tlspol-mailcow > /tmp/com_pipe
+  fi
+done
+) &
+PID=$!
+echo "Spawned postfix-tlspol_checks with PID ${PID}"
+BACKGROUND_TASKS+=(${PID})
+
 (
 while true; do
   if ! dovecot_checks; then

docker-compose.yml

@@ -577,6 +577,7 @@ services:
         - MYSQL_REPLICATION_THRESHOLD=${MYSQL_REPLICATION_THRESHOLD:-1}
         - SOGO_THRESHOLD=${SOGO_THRESHOLD:-3}
         - POSTFIX_THRESHOLD=${POSTFIX_THRESHOLD:-8}
+        - POSTFIX_TLSPOL_THRESHOLD=${POSTFIX_TLSPOL_THRESHOLD:-8}
         - CLAMD_THRESHOLD=${CLAMD_THRESHOLD:-15}
         - DOVECOT_THRESHOLD=${DOVECOT_THRESHOLD:-12}
         - DOVECOT_REPL_THRESHOLD=${DOVECOT_REPL_THRESHOLD:-20}