andryyy 2020-03-03 15:03:45 +01:00
commit 1f5fcad499
2 changed files with 21 additions and 961 deletions

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@ -3,66 +3,54 @@ name: Bug report
about: Report a bug for this project
---
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Please **try** to answer all questions. If you cannot, don't just delete it. If you completely ignore or remove the whole template, **your issue will be closed** with a label "missing information".
Many awesome mailcow supporters don't bother to reply to an issue, when crucial information is missing. Especially when it could have been answered by using this issue template. We need as much information as possible. Please post all logs, do not copy that one line you think may be interesting. Copy the whole bunch and remove sensible information. Thank you!
**Prior to placing the issue, please check following:** *(fill out each checkbox with a `X` once done)*
- [ ] I understand that not following below instructions might result in immediate closing and deletion of my issue.
- [ ] I understand, that not following below instructions might result in immediate closing and deletion of my issue.
- [ ] I have understood that answers are voluntary and community-driven, and not commercial support.
- [ ] I have verified that my issue has not been already answered in the past. I also checked previous [issues](https://github.com/mailcow/mailcow-dockerized/issues).
---
**Description of the bug**: What kind of issue have you *exactly* come across?
**Description of the bug**:
<!--
This should be a clear and concise description of what the bug is. What EXACTLY does happen?
If applicable, add screenshots to help explain your problem. Very useful for bugs in mailcow UI.
Write your detailed description below.
-->
My issue is...
**Reproduction of said bug**: How *exactly* do you reproduce the bug?
**Docker container logs of affected containers**:
<!--
Here it is really helpful to know how exactly you are able to reproduce the reported issue.
Meaning: What are the exact steps - one by one - to get the above described behavior.
Please take a look at the [official documentation](https://mailcow.github.io/mailcow-dockerized-docs/debug-logs/) and post the last few lines of logs, when the error occurs.
-->
**Reproduction of said bug**:
<!--
It is really helpful to know how exactly you are able to reproduce the reported issue.
Have you tried to fix the issue? What did you try?
What are the exact steps to get the above described behavior?
Screenshots can be added, if helpful. Add the text below.
-->
1. I go to...
2. And then to...
3. But once I do...
__I have tried or I do...__ *(fill out each checkbox with a `X` if applicable)*
- [ ] In case of WebUI issue, I have tried clearing the browser cache and the issue persists.
- [ ] I do run mailcow on a Synology, QNAP or any other sort of NAS.
**System information**
**System information**:
<!--
In this stage we would kindly ask you to attach logs or general system information about your setup.
In this stage we would kindly ask you to attach general system information about your setup.
Please carefully read the questions and instructions below.
-->
Further information (where applicable):
| Question | Answer |
| --- | --- |
| My operating system | I_DO_REPLY_HERE |
| Is Apparmor, SELinux or similar active? | I_DO_REPLY_HERE |
| Virtualization technlogy (KVM, VMware, Xen, etc) | I_DO_REPLY_HERE |
| Virtualization technlogy (KVM, VMware, Xen, etc - **LXC and OpenVZ are not supported** | I_DO_REPLY_HERE |
| Server/VM specifications (Memory, CPU Cores) | I_DO_REPLY_HERE |
| Docker Version (`docker version`) | I_DO_REPLY_HERE |
| Docker-Compose Version (`docker-compose version`) | I_DO_REPLY_HERE |
| Reverse proxy (custom solution) | I_DO_REPLY_HERE |
Further notes:
- Output of `git diff origin/master`, any other changes to the code? If so, please post them.
- All third-party firewalls and custom iptables rules are unsupported. Please check the Docker docs about how to use Docker with your own ruleset. Nevertheless, iptabels output can help _us_ to help _you_: `iptables -L -vn`, `ip6tables -L -vn`, `iptables -L -vn -t nat` and `ip6tables -L -vn -t nat `
- Check `docker exec -it $(docker ps -qf name=acme-mailcow) dig +short stackoverflow.com @172.22.1.254` (set the IP accordingly, if you changed the internal mailcow network) and `docker exec -it $(docker ps -qf name=acme-mailcow) dig +short stackoverflow.com @1.1.1.1` - output? Timeout?
General logs:
- Please take a look at the [official documentation](https://mailcow.github.io/mailcow-dockerized-docs/debug-logs/).
- Output of `git diff origin/master`, any other changes to the code? If so, **please post them**.
- All third-party firewalls and custom iptables rules are unsupported. *Please check the Docker docs about how to use Docker with your own ruleset*. Nevertheless, iptabels output can help us to help you: `iptables -L -vn`, `ip6tables -L -vn`, `iptables -L -vn -t nat` and `ip6tables -L -vn -t nat`.
- DNS problems? Please run `docker exec -it $(docker ps -qf name=acme-mailcow) dig +short stackoverflow.com @172.22.1.254` (set the IP accordingly, if you changed the internal mailcow network) and post the output.

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@ -1,928 +0,0 @@
#!/bin/bash
trap "exit" INT TERM
trap "kill 0" EXIT
# Prepare
BACKGROUND_TASKS=()
echo "Waiting for containers to settle..."
sleep 30
if [[ "${USE_WATCHDOG}" =~ ^([nN][oO]|[nN])+$ ]]; then
echo -e "$(date) - USE_WATCHDOG=n, skipping watchdog..."
sleep 365d
exec $(readlink -f "$0")
fi
# Checks pipe their corresponding container name in this pipe
if [[ ! -p /tmp/com_pipe ]]; then
mkfifo /tmp/com_pipe
fi
# Wait for containers
while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
echo "Waiting for SQL..."
sleep 2
done
until [[ $(redis-cli -h redis-mailcow PING) == "PONG" ]]; do
echo "Waiting for Redis..."
sleep 2
done
# Do not attempt to write to slave
if [[ ! -z ${REDIS_SLAVEOF_IP} ]]; then
REDIS_CMDLINE="redis-cli -h ${REDIS_SLAVEOF_IP} -p ${REDIS_SLAVEOF_PORT}"
else
REDIS_CMDLINE="redis-cli -h redis -p 6379"
fi
${REDIS_CMDLINE} DEL F2B_RES > /dev/null
# Common functions
get_ipv6(){
local IPV6=
local IPV6_SRCS=
local TRY=
IPV6_SRCS[0]="ip6.korves.net"
IPV6_SRCS[1]="ip6.mailcow.email"
until [[ ! -z ${IPV6} ]] || [[ ${TRY} -ge 10 ]]; do
IPV6=$(curl --connect-timeout 3 -m 10 -L6s ${IPV6_SRCS[$RANDOM % ${#IPV6_SRCS[@]} ]} | grep "^\([0-9a-fA-F]\{0,4\}:\)\{1,7\}[0-9a-fA-F]\{0,4\}$")
[[ ! -z ${TRY} ]] && sleep 1
TRY=$((TRY+1))
done
echo ${IPV6}
}
array_diff() {
# https://stackoverflow.com/questions/2312762, Alex Offshore
eval local ARR1=\(\"\${$2[@]}\"\)
eval local ARR2=\(\"\${$3[@]}\"\)
local IFS=$'\n'
mapfile -t $1 < <(comm -23 <(echo "${ARR1[*]}" | sort) <(echo "${ARR2[*]}" | sort))
}
progress() {
SERVICE=${1}
TOTAL=${2}
CURRENT=${3}
DIFF=${4}
[[ -z ${DIFF} ]] && DIFF=0
[[ -z ${TOTAL} || -z ${CURRENT} ]] && return
[[ ${CURRENT} -gt ${TOTAL} ]] && return
[[ ${CURRENT} -lt 0 ]] && CURRENT=0
PERCENT=$(( 200 * ${CURRENT} / ${TOTAL} % 2 + 100 * ${CURRENT} / ${TOTAL} ))
${REDIS_CMDLINE} LPUSH WATCHDOG_LOG "{\"time\":\"$(date +%s)\",\"service\":\"${SERVICE}\",\"lvl\":\"${PERCENT}\",\"hpnow\":\"${CURRENT}\",\"hptotal\":\"${TOTAL}\",\"hpdiff\":\"${DIFF}\"}" > /dev/null
log_msg "${SERVICE} health level: ${PERCENT}% (${CURRENT}/${TOTAL}), health trend: ${DIFF}" no_redis
# Return 10 to indicate a dead service
[ ${CURRENT} -le 0 ] && return 10
}
log_msg() {
if [[ ${2} != "no_redis" ]]; then
${REDIS_CMDLINE} LPUSH WATCHDOG_LOG "{\"time\":\"$(date +%s)\",\"message\":\"$(printf '%s' "${1}" | \
tr '\r\n%&;$"_[]{}-' ' ')\"}" > /dev/null
fi
echo $(date) $(printf '%s\n' "${1}")
}
function mail_error() {
[[ -z ${1} ]] && return 1
[[ -z ${2} ]] && BODY="Service was restarted on $(date), please check your mailcow installation." || BODY="$(date) - ${2}"
WATCHDOG_NOTIFY_EMAIL=$(echo "${WATCHDOG_NOTIFY_EMAIL}" | sed 's/"//;s|"$||')
# Some exceptions for subject and body formats
if [[ ${1} == "fail2ban" ]]; then
SUBJECT="${BODY}"
BODY="Please see netfilter-mailcow for more details and triggered rules."
else
SUBJECT="Watchdog ALERT: ${1}"
fi
IFS=',' read -r -a MAIL_RCPTS <<< "${WATCHDOG_NOTIFY_EMAIL}"
for rcpt in "${MAIL_RCPTS[@]}"; do
RCPT_DOMAIN=
#RCPT_MX=
RCPT_DOMAIN=$(echo ${rcpt} | awk -F @ {'print $NF'})
# Latest smtp-cli looks up mx via dns
#RCPT_MX=$(dig +short ${RCPT_DOMAIN} mx | sort -n | awk '{print $2; exit}')
#if [[ -z ${RCPT_MX} ]]; then
# log_msg "Cannot determine MX for ${rcpt}, skipping email notification..."
# return 1
#fi
[ -f "/tmp/${1}" ] && BODY="/tmp/${1}"
timeout 10s ./smtp-cli --missing-modules-ok \
--charset=UTF-8 \
--subject="${SUBJECT}" \
--body-plain="${BODY}" \
--to=${rcpt} \
--from="watchdog@${MAILCOW_HOSTNAME}" \
--hello-host=${MAILCOW_HOSTNAME} \
--ipv4
#--server="${RCPT_MX}"
log_msg "Sent notification email to ${rcpt}"
done
}
get_container_ip() {
# ${1} is container
CONTAINER_ID=()
CONTAINER_IPS=()
CONTAINER_IP=
LOOP_C=1
until [[ ${CONTAINER_IP} =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]] || [[ ${LOOP_C} -gt 5 ]]; do
if [ ${IP_BY_DOCKER_API} -eq 0 ]; then
CONTAINER_IP=$(dig a "${1}" +short)
else
sleep 0.5
# get long container id for exact match
CONTAINER_ID=($(curl --silent --insecure https://dockerapi/containers/json | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], id: .Id}" | jq -rc "select( .name | tostring == \"${1}\") | .id"))
# returned id can have multiple elements (if scaled), shuffle for random test
CONTAINER_ID=($(printf "%s\n" "${CONTAINER_ID[@]}" | shuf))
if [[ ! -z ${CONTAINER_ID} ]]; then
for matched_container in "${CONTAINER_ID[@]}"; do
CONTAINER_IPS=($(curl --silent --insecure https://dockerapi/containers/${matched_container}/json | jq -r '.NetworkSettings.Networks[].IPAddress'))
for ip_match in "${CONTAINER_IPS[@]}"; do
# grep will do nothing if one of these vars is empty
[[ -z ${ip_match} ]] && continue
[[ -z ${IPV4_NETWORK} ]] && continue
# only return ips that are part of our network
if ! grep -q ${IPV4_NETWORK} <(echo ${ip_match}); then
continue
else
CONTAINER_IP=${ip_match}
break
fi
done
[[ ! -z ${CONTAINER_IP} ]] && break
done
fi
fi
LOOP_C=$((LOOP_C + 1))
done
[[ ${LOOP_C} -gt 5 ]] && echo 240.0.0.0 || echo ${CONTAINER_IP}
}
# One-time check
if grep -qi "$(echo ${IPV6_NETWORK} | cut -d: -f1-3)" <<< "$(ip a s)"; then
if [[ -z "$(get_ipv6)" ]]; then
mail_error "ipv6-config" "enable_ipv6 is true in docker-compose.yml, but an IPv6 link could not be established. Please verify your IPv6 connection."
fi
fi
external_checks() {
err_count=0
diff_c=0
THRESHOLD=${EXTERNAL_CHECKS_THRESHOLD}
# Reduce error count by 2 after restarting an unhealthy container
GUID=$(mysql -u${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT version FROM versions WHERE application = 'GUID'" -BN)
trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
while [ ${err_count} -lt ${THRESHOLD} ]; do
err_c_cur=${err_count}
CHECK_REPONSE="$(curl --connect-timeout 3 -m 10 -4 -s https://checks.mailcow.email -X POST -dguid=${GUID} 2> /dev/null)"
if [[ ! -z "${CHECK_REPONSE}" ]] && [[ "$(echo ${CHECK_REPONSE} | jq -r .response)" == "critical" ]]; then
echo ${CHECK_REPONSE} | jq -r .out > /tmp/external_checks
err_count=$(( ${err_count} + 1 ))
fi
CHECK_REPONSE6="$(curl --connect-timeout 3 -m 10 -6 -s https://checks.mailcow.email -X POST -dguid=${GUID} 2> /dev/null)"
if [[ ! -z "${CHECK_REPONSE6}" ]] && [[ "$(echo ${CHECK_REPONSE6} | jq -r .response)" == "critical" ]]; then
echo ${CHECK_REPONSE} | jq -r .out > /tmp/external_checks
err_count=$(( ${err_count} + 1 ))
fi
[ ${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 "External checks" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 60
else
diff_c=0
sleep $(( ( RANDOM % 20 ) + 120 ))
fi
done
return 1
}
nginx_checks() {
err_count=0
diff_c=0
THRESHOLD=${NGINX_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 ${THRESHOLD} ]; do
touch /tmp/nginx-mailcow; echo "$(tail -50 /tmp/nginx-mailcow)" > /tmp/nginx-mailcow
host_ip=$(get_container_ip nginx-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_http -4 -H ${host_ip} -u / -p 8081 2>> /tmp/nginx-mailcow 1>&2; err_count=$(( ${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 "Nginx" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
unbound_checks() {
err_count=0
diff_c=0
THRESHOLD=${UNBOUND_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 ${THRESHOLD} ]; do
touch /tmp/unbound-mailcow; echo "$(tail -50 /tmp/unbound-mailcow)" > /tmp/unbound-mailcow
host_ip=$(get_container_ip unbound-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_dns -s ${host_ip} -H stackoverflow.com 2>> /tmp/unbound-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
DNSSEC=$(dig com +dnssec | egrep 'flags:.+ad')
if [[ -z ${DNSSEC} ]]; then
echo "DNSSEC failure" 2>> /tmp/unbound-mailcow 1>&2
err_count=$(( ${err_count} + 1))
else
echo "DNSSEC check succeeded" 2>> /tmp/unbound-mailcow 1>&2
fi
[ ${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 "Unbound" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
redis_checks() {
# A check for the local redis container
err_count=0
diff_c=0
THRESHOLD=${REDIS_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 ${THRESHOLD} ]; do
touch /tmp/redis-mailcow; echo "$(tail -50 /tmp/redis-mailcow)" > /tmp/redis-mailcow
host_ip=$(get_container_ip redis-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_tcp -4 -H redis-mailcow -p 6379 -E -s "PING\n" -q "QUIT" -e "PONG" 2>> /tmp/redis-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 "Redis" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
mysql_checks() {
err_count=0
diff_c=0
THRESHOLD=${MYSQL_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 ${THRESHOLD} ]; do
touch /tmp/mysql-mailcow; echo "$(tail -50 /tmp/mysql-mailcow)" > /tmp/mysql-mailcow
host_ip=$(get_container_ip mysql-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_mysql -s /var/run/mysqld/mysqld.sock -u ${DBUSER} -p ${DBPASS} -d ${DBNAME} 2>> /tmp/mysql-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_mysql_query -s /var/run/mysqld/mysqld.sock -u ${DBUSER} -p ${DBPASS} -d ${DBNAME} -q "SELECT COUNT(*) FROM information_schema.tables" 2>> /tmp/mysql-mailcow 1>&2; err_count=$(( ${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 "MySQL/MariaDB" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
sogo_checks() {
err_count=0
diff_c=0
THRESHOLD=${SOGO_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 ${THRESHOLD} ]; do
touch /tmp/sogo-mailcow; echo "$(tail -50 /tmp/sogo-mailcow)" > /tmp/sogo-mailcow
host_ip=$(get_container_ip sogo-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_http -4 -H ${host_ip} -u /SOGo.index/ -p 20000 -R "SOGo\.MainUI" 2>> /tmp/sogo-mailcow 1>&2; err_count=$(( ${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 "SOGo" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
postfix_checks() {
err_count=0
diff_c=0
THRESHOLD=${POSTFIX_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 ${THRESHOLD} ]; do
touch /tmp/postfix-mailcow; echo "$(tail -50 /tmp/postfix-mailcow)" > /tmp/postfix-mailcow
host_ip=$(get_container_ip postfix-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_smtp -4 -H ${host_ip} -p 589 -f "watchdog@invalid" -C "RCPT TO:watchdog@localhost" -C DATA -C . -R 250 2>> /tmp/postfix-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_smtp -4 -H ${host_ip} -p 589 -S 2>> /tmp/postfix-mailcow 1>&2; err_count=$(( ${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" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
clamd_checks() {
err_count=0
diff_c=0
THRESHOLD=${CLAMD_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 ${THRESHOLD} ]; do
touch /tmp/clamd-mailcow; echo "$(tail -50 /tmp/clamd-mailcow)" > /tmp/clamd-mailcow
host_ip=$(get_container_ip clamd-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_clamd -4 -H ${host_ip} 2>> /tmp/clamd-mailcow 1>&2; err_count=$(( ${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 "Clamd" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 120 ) + 20 ))
fi
done
return 1
}
dovecot_checks() {
err_count=0
diff_c=0
THRESHOLD=${DOVECOT_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 ${THRESHOLD} ]; do
touch /tmp/dovecot-mailcow; echo "$(tail -50 /tmp/dovecot-mailcow)" > /tmp/dovecot-mailcow
host_ip=$(get_container_ip dovecot-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_smtp -4 -H ${host_ip} -p 24 -f "watchdog@invalid" -C "RCPT TO:<watchdog@invalid>" -L -R "User doesn't exist" 2>> /tmp/dovecot-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_imap -4 -H ${host_ip} -p 993 -S -e "OK " 2>> /tmp/dovecot-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_imap -4 -H ${host_ip} -p 143 -e "OK " 2>> /tmp/dovecot-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_tcp -4 -H ${host_ip} -p 10001 -e "VERSION" 2>> /tmp/dovecot-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_tcp -4 -H ${host_ip} -p 4190 -e "Dovecot ready" 2>> /tmp/dovecot-mailcow 1>&2; err_count=$(( ${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 "Dovecot" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
phpfpm_checks() {
err_count=0
diff_c=0
THRESHOLD=${PHPFPM_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 ${THRESHOLD} ]; do
touch /tmp/php-fpm-mailcow; echo "$(tail -50 /tmp/php-fpm-mailcow)" > /tmp/php-fpm-mailcow
host_ip=$(get_container_ip php-fpm-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_tcp -H ${host_ip} -p 9001 2>> /tmp/php-fpm-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
/usr/lib/nagios/plugins/check_tcp -H ${host_ip} -p 9002 2>> /tmp/php-fpm-mailcow 1>&2; err_count=$(( ${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 "PHP-FPM" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
ratelimit_checks() {
err_count=0
diff_c=0
THRESHOLD=${RATELIMIT_THRESHOLD}
RL_LOG_STATUS=$(redis-cli -h redis LRANGE RL_LOG 0 0 | jq .qid)
# 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 ${THRESHOLD} ]; do
err_c_cur=${err_count}
RL_LOG_STATUS_PREV=${RL_LOG_STATUS}
RL_LOG_STATUS=$(redis-cli -h redis LRANGE RL_LOG 0 0 | jq .qid)
if [[ ${RL_LOG_STATUS_PREV} != ${RL_LOG_STATUS} ]]; then
err_count=$(( ${err_count} + 1 ))
redis-cli --raw -h redis LRANGE RL_LOG 0 10 | jq . > /tmp/ratelimit
fi
[ ${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 "Ratelimit" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
fail2ban_checks() {
err_count=0
diff_c=0
THRESHOLD=${FAIL2BAN_THRESHOLD}
F2B_LOG_STATUS=($(${REDIS_CMDLINE} --raw HKEYS F2B_ACTIVE_BANS))
F2B_RES=
# 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 ${THRESHOLD} ]; do
err_c_cur=${err_count}
F2B_LOG_STATUS_PREV=(${F2B_LOG_STATUS[@]})
F2B_LOG_STATUS=($(${REDIS_CMDLINE} --raw HKEYS F2B_ACTIVE_BANS))
array_diff F2B_RES F2B_LOG_STATUS F2B_LOG_STATUS_PREV
if [[ ! -z "${F2B_RES}" ]]; then
err_count=$(( ${err_count} + 1 ))
echo -n "${F2B_RES[@]}" | tr -cd "[a-fA-F0-9.:/] " | timeout 3s ${REDIS_CMDLINE} -x SET F2B_RES > /dev/null
if [ $? -ne 0 ]; then
${REDIS_CMDLINE} -x DEL F2B_RES
fi
fi
[ ${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 "Fail2ban" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
acme_checks() {
err_count=0
diff_c=0
THRESHOLD=${ACME_THRESHOLD}
ACME_LOG_STATUS=$(redis-cli -h redis GET ACME_FAIL_TIME)
if [[ -z "${ACME_LOG_STATUS}" ]]; then
${REDIS_CMDLINE} SET ACME_FAIL_TIME 0
ACME_LOG_STATUS=0
fi
# 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 ${THRESHOLD} ]; do
err_c_cur=${err_count}
ACME_LOG_STATUS_PREV=${ACME_LOG_STATUS}
ACME_LC=0
until [[ ! -z ${ACME_LOG_STATUS} ]] || [ ${ACME_LC} -ge 3 ]; do
ACME_LOG_STATUS=$(redis-cli -h redis GET ACME_FAIL_TIME 2> /dev/null)
sleep 3
ACME_LC=$((ACME_LC+1))
done
if [[ ${ACME_LOG_STATUS_PREV} != ${ACME_LOG_STATUS} ]]; then
err_count=$(( ${err_count} + 1 ))
fi
[ ${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 "ACME" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
ipv6nat_checks() {
err_count=0
diff_c=0
THRESHOLD=${IPV6NAT_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 ${THRESHOLD} ]; do
err_c_cur=${err_count}
CONTAINERS=$(curl --silent --insecure https://dockerapi/containers/json)
IPV6NAT_CONTAINER_ID=$(echo ${CONTAINERS} | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], id: .Id}" | jq -rc "select( .name | tostring | contains(\"ipv6nat-mailcow\")) | .id")
if [[ ! -z ${IPV6NAT_CONTAINER_ID} ]]; then
LATEST_STARTED="$(echo ${CONTAINERS} | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], StartedAt: .State.StartedAt}" | jq -rc "select( .name | tostring | contains(\"ipv6nat-mailcow\") | not)" | jq -rc .StartedAt | xargs -n1 date +%s -d | sort | tail -n1)"
LATEST_IPV6NAT="$(echo ${CONTAINERS} | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], StartedAt: .State.StartedAt}" | jq -rc "select( .name | tostring | contains(\"ipv6nat-mailcow\"))" | jq -rc .StartedAt | xargs -n1 date +%s -d | sort | tail -n1)"
DIFFERENCE_START_TIME=$(expr ${LATEST_IPV6NAT} - ${LATEST_STARTED} 2>/dev/null)
if [[ "${DIFFERENCE_START_TIME}" -lt 30 ]]; then
err_count=$(( ${err_count} + 1 ))
fi
fi
[ ${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 "IPv6 NAT" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 30
else
diff_c=0
sleep 300
fi
done
return 1
}
rspamd_checks() {
err_count=0
diff_c=0
THRESHOLD=${RSPAMD_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 ${THRESHOLD} ]; do
touch /tmp/rspamd-mailcow; echo "$(tail -50 /tmp/rspamd-mailcow)" > /tmp/rspamd-mailcow
host_ip=$(get_container_ip rspamd-mailcow)
err_c_cur=${err_count}
SCORE=$(echo 'To: null@localhost
From: watchdog@localhost
Empty
' | usr/bin/curl -s --data-binary @- --unix-socket /var/lib/rspamd/rspamd.sock http://rspamd/scan | jq -rc .default.required_score)
if [[ ${SCORE} != "9999" ]]; then
echo "Rspamd settings check failed" 2>> /tmp/rspamd-mailcow 1>&2
err_count=$(( ${err_count} + 1))
else
echo "Rspamd settings check succeeded" 2>> /tmp/rspamd-mailcow 1>&2
fi
[ ${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 "Rspamd" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
if [[ $? == 10 ]]; then
diff_c=0
sleep 1
else
diff_c=0
sleep $(( ( RANDOM % 60 ) + 20 ))
fi
done
return 1
}
olefy_checks() {
err_count=0
diff_c=0
THRESHOLD=${OLEFY_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 ${THRESHOLD} ]; do
touch /tmp/olefy-mailcow; echo "$(tail -50 /tmp/olefy-mailcow)" > /tmp/olefy-mailcow
host_ip=$(get_container_ip olefy-mailcow)
err_c_cur=${err_count}
/usr/lib/nagios/plugins/check_tcp -4 -H ${host_ip} -p 10055 -s "PING\n" 2>> /tmp/olefy-mailcow 1>&2; err_count=$(( ${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 "Olefy" ${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
}
# Notify about start
if [[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]]; then
mail_error "watchdog-mailcow" "Watchdog started monitoring mailcow."
fi
# Create watchdog agents
(
while true; do
if ! nginx_checks; then
log_msg "Nginx hit error limit"
echo nginx-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned nginx_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
if [[ ${WATCHDOG_EXTERNAL_CHECKS} =~ ^([yY][eE][sS]|[yY])+$ ]]; then
(
while true; do
if ! external_checks; then
log_msg "External checks hit error limit"
echo external_checks > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned external_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
fi
(
while true; do
if ! mysql_checks; then
log_msg "MySQL hit error limit"
echo mysql-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned mysql_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! redis_checks; then
log_msg "Local Redis hit error limit"
echo redis-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned redis_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! phpfpm_checks; then
log_msg "PHP-FPM hit error limit"
echo php-fpm-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned phpfpm_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! sogo_checks; then
log_msg "SOGo hit error limit"
echo sogo-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned sogo_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
if [ ${CHECK_UNBOUND} -eq 1 ]; then
(
while true; do
if ! unbound_checks; then
log_msg "Unbound hit error limit"
echo unbound-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned unbound_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
fi
if [[ "${SKIP_CLAMD}" =~ ^([nN][oO]|[nN])+$ ]]; then
(
while true; do
if ! clamd_checks; then
log_msg "Clamd hit error limit"
echo clamd-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned clamd_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
fi
(
while true; do
if ! postfix_checks; then
log_msg "Postfix hit error limit"
echo postfix-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned postfix_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! dovecot_checks; then
log_msg "Dovecot hit error limit"
echo dovecot-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned dovecot_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! rspamd_checks; then
log_msg "Rspamd hit error limit"
echo rspamd-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned rspamd_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! ratelimit_checks; then
log_msg "Ratelimit hit error limit"
echo ratelimit > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned ratelimit_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! fail2ban_checks; then
log_msg "Fail2ban hit error limit"
echo fail2ban > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned fail2ban_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! olefy_checks; then
log_msg "Olefy hit error limit"
echo olefy-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned olefy_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! acme_checks; then
log_msg "ACME client hit error limit"
echo acme-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned acme_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
(
while true; do
if ! ipv6nat_checks; then
log_msg "IPv6 NAT warning: ipv6nat-mailcow container was not started at least 30s after siblings (not an error)"
echo ipv6nat-mailcow > /tmp/com_pipe
fi
done
) &
PID=$!
echo "Spawned ipv6nat_checks with PID ${PID}"
BACKGROUND_TASKS+=(${PID})
# Monitor watchdog agents, stop script when agents fails and wait for respawn by Docker (restart:always:n)
(
while true; do
for bg_task in ${BACKGROUND_TASKS[*]}; do
if ! kill -0 ${bg_task} 1>&2; then
log_msg "Worker ${bg_task} died, stopping watchdog and waiting for respawn..."
kill -TERM 1
fi
sleep 10
done
done
) &
# Monitor dockerapi
(
while true; do
while nc -z dockerapi 443; do
sleep 3
done
log_msg "Cannot find dockerapi-mailcow, waiting to recover..."
kill -STOP ${BACKGROUND_TASKS[*]}
until nc -z dockerapi 443; do
sleep 3
done
kill -CONT ${BACKGROUND_TASKS[*]}
kill -USR1 ${BACKGROUND_TASKS[*]}
done
) &
# Actions when threshold limit is reached
while true; do
CONTAINER_ID=
HAS_INITDB=
read com_pipe_answer </tmp/com_pipe
if [ -s "/tmp/${com_pipe_answer}" ]; then
cat "/tmp/${com_pipe_answer}"
fi
if [[ ${com_pipe_answer} == "ratelimit" ]]; then
log_msg "At least one ratelimit was applied"
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}"
elif [[ ${com_pipe_answer} == "external_checks" ]]; then
log_msg "Your mailcow is an open relay!"
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}" "Please stop mailcow now and check your network configuration!"
elif [[ ${com_pipe_answer} == "acme-mailcow" ]]; then
log_msg "acme-mailcow did not complete successfully"
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}" "Please check acme-mailcow for further information."
elif [[ ${com_pipe_answer} == "fail2ban" ]]; then
F2B_RES=($(timeout 4s ${REDIS_CMDLINE} --raw GET F2B_RES 2> /dev/null))
if [[ ! -z "${F2B_RES}" ]]; then
${REDIS_CMDLINE} DEL F2B_RES > /dev/null
host=
for host in "${F2B_RES[@]}"; do
log_msg "Banned ${host}"
rm /tmp/fail2ban 2> /dev/null
timeout 2s whois "${host}" > /tmp/fail2ban
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && [[ ${WATCHDOG_NOTIFY_BAN} =~ ^([yY][eE][sS]|[yY])+$ ]] && mail_error "${com_pipe_answer}" "IP ban: ${host}"
done
fi
elif [[ ${com_pipe_answer} =~ .+-mailcow ]]; then
kill -STOP ${BACKGROUND_TASKS[*]}
sleep 10
CONTAINER_ID=$(curl --silent --insecure https://dockerapi/containers/json | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], id: .Id}" | jq -rc "select( .name | tostring | contains(\"${com_pipe_answer}\")) | .id")
if [[ ! -z ${CONTAINER_ID} ]]; then
if [[ "${com_pipe_answer}" == "php-fpm-mailcow" ]]; then
HAS_INITDB=$(curl --silent --insecure -XPOST https://dockerapi/containers/${CONTAINER_ID}/top | jq '.msg.Processes[] | contains(["php -c /usr/local/etc/php -f /web/inc/init_db.inc.php"])' | grep true)
fi
S_RUNNING=$(($(date +%s) - $(curl --silent --insecure https://dockerapi/containers/${CONTAINER_ID}/json | jq .State.StartedAt | xargs -n1 date +%s -d)))
if [ ${S_RUNNING} -lt 360 ]; then
log_msg "Container is running for less than 360 seconds, skipping action..."
elif [[ ! -z ${HAS_INITDB} ]]; then
log_msg "Database is being initialized by php-fpm-mailcow, not restarting but delaying checks for a minute..."
sleep 60
else
log_msg "Sending restart command to ${CONTAINER_ID}..."
curl --silent --insecure -XPOST https://dockerapi/containers/${CONTAINER_ID}/restart
if [[ ${com_pipe_answer} != "ipv6nat-mailcow" ]]; then
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}"
fi
log_msg "Wait for restarted container to settle and continue watching..."
sleep 35
fi
fi
kill -CONT ${BACKGROUND_TASKS[*]}
sleep 1
kill -USR1 ${BACKGROUND_TASKS[*]}
fi
done