1017 lines
36 KiB
Bash
Executable File
1017 lines
36 KiB
Bash
Executable File
#!/bin/bash
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trap "exit" INT TERM
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trap "kill 0" EXIT
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# Prepare
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BACKGROUND_TASKS=()
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echo "Waiting for containers to settle..."
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sleep 30
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if [[ "${USE_WATCHDOG}" =~ ^([nN][oO]|[nN])+$ ]]; then
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echo -e "$(date) - USE_WATCHDOG=n, skipping watchdog..."
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sleep 365d
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exec $(readlink -f "$0")
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fi
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# Checks pipe their corresponding container name in this pipe
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if [[ ! -p /tmp/com_pipe ]]; then
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mkfifo /tmp/com_pipe
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fi
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# Wait for containers
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while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
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echo "Waiting for SQL..."
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sleep 2
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done
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# Do not attempt to write to slave
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if [[ ! -z ${REDIS_SLAVEOF_IP} ]]; then
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REDIS_CMDLINE="redis-cli -h ${REDIS_SLAVEOF_IP} -p ${REDIS_SLAVEOF_PORT}"
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else
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REDIS_CMDLINE="redis-cli -h redis -p 6379"
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fi
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until [[ $(${REDIS_CMDLINE} PING) == "PONG" ]]; do
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echo "Waiting for Redis..."
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sleep 2
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done
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${REDIS_CMDLINE} DEL F2B_RES > /dev/null
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# Common functions
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get_ipv6(){
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local IPV6=
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local IPV6_SRCS=
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local TRY=
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IPV6_SRCS[0]="ip6.korves.net"
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IPV6_SRCS[1]="ip6.mailcow.email"
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until [[ ! -z ${IPV6} ]] || [[ ${TRY} -ge 10 ]]; do
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IPV6=$(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\}$")
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[[ ! -z ${TRY} ]] && sleep 1
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TRY=$((TRY+1))
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done
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echo ${IPV6}
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}
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array_diff() {
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# https://stackoverflow.com/questions/2312762, Alex Offshore
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eval local ARR1=\(\"\${$2[@]}\"\)
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eval local ARR2=\(\"\${$3[@]}\"\)
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local IFS=$'\n'
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mapfile -t $1 < <(comm -23 <(echo "${ARR1[*]}" | sort) <(echo "${ARR2[*]}" | sort))
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}
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progress() {
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SERVICE=${1}
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TOTAL=${2}
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CURRENT=${3}
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DIFF=${4}
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[[ -z ${DIFF} ]] && DIFF=0
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[[ -z ${TOTAL} || -z ${CURRENT} ]] && return
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[[ ${CURRENT} -gt ${TOTAL} ]] && return
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[[ ${CURRENT} -lt 0 ]] && CURRENT=0
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PERCENT=$(( 200 * ${CURRENT} / ${TOTAL} % 2 + 100 * ${CURRENT} / ${TOTAL} ))
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${REDIS_CMDLINE} LPUSH WATCHDOG_LOG "{\"time\":\"$(date +%s)\",\"service\":\"${SERVICE}\",\"lvl\":\"${PERCENT}\",\"hpnow\":\"${CURRENT}\",\"hptotal\":\"${TOTAL}\",\"hpdiff\":\"${DIFF}\"}" > /dev/null
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log_msg "${SERVICE} health level: ${PERCENT}% (${CURRENT}/${TOTAL}), health trend: ${DIFF}" no_redis
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# Return 10 to indicate a dead service
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[ ${CURRENT} -le 0 ] && return 10
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}
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log_msg() {
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if [[ ${2} != "no_redis" ]]; then
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${REDIS_CMDLINE} LPUSH WATCHDOG_LOG "{\"time\":\"$(date +%s)\",\"message\":\"$(printf '%s' "${1}" | \
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tr '\r\n%&;$"_[]{}-' ' ')\"}" > /dev/null
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fi
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echo $(date) $(printf '%s\n' "${1}")
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}
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function mail_error() {
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[[ -z ${1} ]] && return 1
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[[ -z ${2} ]] && BODY="Service was restarted on $(date), please check your mailcow installation." || BODY="$(date) - ${2}"
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WATCHDOG_NOTIFY_EMAIL=$(echo "${WATCHDOG_NOTIFY_EMAIL}" | sed 's/"//;s|"$||')
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# Some exceptions for subject and body formats
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if [[ ${1} == "fail2ban" ]]; then
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SUBJECT="${BODY}"
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BODY="Please see netfilter-mailcow for more details and triggered rules."
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else
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SUBJECT="Watchdog ALERT: ${1}"
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fi
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IFS=',' read -r -a MAIL_RCPTS <<< "${WATCHDOG_NOTIFY_EMAIL}"
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for rcpt in "${MAIL_RCPTS[@]}"; do
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RCPT_DOMAIN=
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#RCPT_MX=
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RCPT_DOMAIN=$(echo ${rcpt} | awk -F @ {'print $NF'})
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# Latest smtp-cli looks up mx via dns
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#RCPT_MX=$(dig +short ${RCPT_DOMAIN} mx | sort -n | awk '{print $2; exit}')
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#if [[ -z ${RCPT_MX} ]]; then
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# log_msg "Cannot determine MX for ${rcpt}, skipping email notification..."
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# return 1
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#fi
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[ -f "/tmp/${1}" ] && BODY="/tmp/${1}"
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timeout 10s ./smtp-cli --missing-modules-ok \
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--charset=UTF-8 \
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--subject="${SUBJECT}" \
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--body-plain="${BODY}" \
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--add-header="X-Priority: 1" \
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--to=${rcpt} \
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--from="watchdog@${MAILCOW_HOSTNAME}" \
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--hello-host=${MAILCOW_HOSTNAME} \
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--ipv4
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#--server="${RCPT_MX}"
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log_msg "Sent notification email to ${rcpt}"
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done
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}
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get_container_ip() {
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# ${1} is container
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CONTAINER_ID=()
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CONTAINER_IPS=()
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CONTAINER_IP=
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LOOP_C=1
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until [[ ${CONTAINER_IP} =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]] || [[ ${LOOP_C} -gt 5 ]]; do
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if [ ${IP_BY_DOCKER_API} -eq 0 ]; then
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CONTAINER_IP=$(dig a "${1}" +short)
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else
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sleep 0.5
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# get long container id for exact match
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CONTAINER_ID=($(curl --silent --insecure https://dockerapi/containers/json | jq -r ".[] | {name: .Config.Labels[\"com.docker.compose.service\"], id: .Id}" | jq -rc "select( .name | tostring == \"${1}\") | .id"))
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# returned id can have multiple elements (if scaled), shuffle for random test
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CONTAINER_ID=($(printf "%s\n" "${CONTAINER_ID[@]}" | shuf))
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if [[ ! -z ${CONTAINER_ID} ]]; then
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for matched_container in "${CONTAINER_ID[@]}"; do
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CONTAINER_IPS=($(curl --silent --insecure https://dockerapi/containers/${matched_container}/json | jq -r '.NetworkSettings.Networks[].IPAddress'))
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for ip_match in "${CONTAINER_IPS[@]}"; do
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# grep will do nothing if one of these vars is empty
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[[ -z ${ip_match} ]] && continue
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[[ -z ${IPV4_NETWORK} ]] && continue
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# only return ips that are part of our network
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if ! grep -q ${IPV4_NETWORK} <(echo ${ip_match}); then
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continue
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else
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CONTAINER_IP=${ip_match}
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break
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fi
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done
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[[ ! -z ${CONTAINER_IP} ]] && break
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done
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fi
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fi
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LOOP_C=$((LOOP_C + 1))
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done
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[[ ${LOOP_C} -gt 5 ]] && echo 240.0.0.0 || echo ${CONTAINER_IP}
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}
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# One-time check
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if grep -qi "$(echo ${IPV6_NETWORK} | cut -d: -f1-3)" <<< "$(ip a s)"; then
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if [[ -z "$(get_ipv6)" ]]; then
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mail_error "ipv6-config" "enable_ipv6 is true in docker-compose.yml, but an IPv6 link could not be established. Please verify your IPv6 connection."
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fi
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fi
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external_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${EXTERNAL_CHECKS_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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GUID=$(mysql -u${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT version FROM versions WHERE application = 'GUID'" -BN)
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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err_c_cur=${err_count}
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CHECK_REPONSE="$(curl --connect-timeout 3 -m 10 -4 -s https://checks.mailcow.email -X POST -dguid=${GUID} 2> /dev/null)"
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if [[ ! -z "${CHECK_REPONSE}" ]] && [[ "$(echo ${CHECK_REPONSE} | jq -r .response)" == "critical" ]]; then
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echo ${CHECK_REPONSE} | jq -r .out > /tmp/external_checks
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err_count=$(( ${err_count} + 1 ))
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fi
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CHECK_REPONSE6="$(curl --connect-timeout 3 -m 10 -6 -s https://checks.mailcow.email -X POST -dguid=${GUID} 2> /dev/null)"
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if [[ ! -z "${CHECK_REPONSE6}" ]] && [[ "$(echo ${CHECK_REPONSE6} | jq -r .response)" == "critical" ]]; then
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echo ${CHECK_REPONSE} | jq -r .out > /tmp/external_checks
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err_count=$(( ${err_count} + 1 ))
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fi
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "External checks" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 60
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else
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diff_c=0
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sleep $(( ( RANDOM % 20 ) + 120 ))
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fi
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done
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return 1
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}
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nginx_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${NGINX_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/nginx-mailcow; echo "$(tail -50 /tmp/nginx-mailcow)" > /tmp/nginx-mailcow
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host_ip=$(get_container_ip nginx-mailcow)
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err_c_cur=${err_count}
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/usr/lib/nagios/plugins/check_http -4 -H ${host_ip} -u / -p 8081 2>> /tmp/nginx-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "Nginx" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 1
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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unbound_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${UNBOUND_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/unbound-mailcow; echo "$(tail -50 /tmp/unbound-mailcow)" > /tmp/unbound-mailcow
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host_ip=$(get_container_ip unbound-mailcow)
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err_c_cur=${err_count}
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/usr/lib/nagios/plugins/check_dns -s ${host_ip} -H stackoverflow.com 2>> /tmp/unbound-mailcow 1>&2; err_count=$(( ${err_count} + $? ))
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DNSSEC=$(dig com +dnssec | egrep 'flags:.+ad')
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if [[ -z ${DNSSEC} ]]; then
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echo "DNSSEC failure" 2>> /tmp/unbound-mailcow 1>&2
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err_count=$(( ${err_count} + 1))
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else
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echo "DNSSEC check succeeded" 2>> /tmp/unbound-mailcow 1>&2
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fi
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "Unbound" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 1
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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redis_checks() {
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# A check for the local redis container
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err_count=0
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diff_c=0
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THRESHOLD=${REDIS_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/redis-mailcow; echo "$(tail -50 /tmp/redis-mailcow)" > /tmp/redis-mailcow
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host_ip=$(get_container_ip redis-mailcow)
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err_c_cur=${err_count}
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/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} + $? ))
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "Redis" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 1
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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mysql_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${MYSQL_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/mysql-mailcow; echo "$(tail -50 /tmp/mysql-mailcow)" > /tmp/mysql-mailcow
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err_c_cur=${err_count}
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/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} + $? ))
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/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} + $? ))
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "MySQL/MariaDB" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 1
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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mysql_repl_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${MYSQL_REPLICATION_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/mysql_repl_checks; echo "$(tail -50 /tmp/mysql_repl_checks)" > /tmp/mysql_repl_checks
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err_c_cur=${err_count}
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/usr/lib/nagios/plugins/check_mysql_slavestatus.sh -S /var/run/mysqld/mysqld.sock -u root -p ${DBROOT} 2>> /tmp/mysql_repl_checks 1>&2; err_count=$(( ${err_count} + $? ))
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "MySQL/MariaDB replication" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 60
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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sogo_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${SOGO_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/sogo-mailcow; echo "$(tail -50 /tmp/sogo-mailcow)" > /tmp/sogo-mailcow
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host_ip=$(get_container_ip sogo-mailcow)
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err_c_cur=${err_count}
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/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} + $? ))
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[ ${err_c_cur} -eq ${err_count} ] && [ ! $((${err_count} - 1)) -lt 0 ] && err_count=$((${err_count} - 1)) diff_c=1
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[ ${err_c_cur} -ne ${err_count} ] && diff_c=$(( ${err_c_cur} - ${err_count} ))
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progress "SOGo" ${THRESHOLD} $(( ${THRESHOLD} - ${err_count} )) ${diff_c}
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if [[ $? == 10 ]]; then
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diff_c=0
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sleep 1
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else
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diff_c=0
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sleep $(( ( RANDOM % 60 ) + 20 ))
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fi
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done
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return 1
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}
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|
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postfix_checks() {
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err_count=0
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diff_c=0
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THRESHOLD=${POSTFIX_THRESHOLD}
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# Reduce error count by 2 after restarting an unhealthy container
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trap "[ ${err_count} -gt 1 ] && err_count=$(( ${err_count} - 2 ))" USR1
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while [ ${err_count} -lt ${THRESHOLD} ]; do
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touch /tmp/postfix-mailcow; echo "$(tail -50 /tmp/postfix-mailcow)" > /tmp/postfix-mailcow
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host_ip=$(get_container_ip postfix-mailcow)
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err_c_cur=${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 $(( ( RANDOM % 60 ) + 20 ))
|
|
fi
|
|
done
|
|
return 1
|
|
}
|
|
|
|
dovecot_repl_checks() {
|
|
err_count=0
|
|
diff_c=0
|
|
THRESHOLD=${DOVECOT_REPL_THRESHOLD}
|
|
D_REPL_STATUS=$(redis-cli -h redis -r GET DOVECOT_REPL_HEALTH)
|
|
# 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}
|
|
D_REPL_STATUS=$(redis-cli --raw -h redis GET DOVECOT_REPL_HEALTH)
|
|
if [[ "${D_REPL_STATUS}" != "1" ]]; 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 "Dovecot replication" ${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 ))
|
|
echo 'Last 10 applied ratelimits (may overlap with previous reports).' > /tmp/ratelimit
|
|
echo 'Full ratelimit buckets can be emptied by deleting the ratelimit hash from within mailcow UI (see /debug -> Protocols -> Ratelimit):' >> /tmp/ratelimit
|
|
echo >> /tmp/ratelimit
|
|
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
|
|
|
|
if [[ ${WATCHDOG_MYSQL_REPLICATION_CHECKS} =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
(
|
|
while true; do
|
|
if ! mysql_repl_checks; then
|
|
log_msg "MySQL replication check hit error limit"
|
|
echo mysql_repl_checks > /tmp/com_pipe
|
|
fi
|
|
done
|
|
) &
|
|
PID=$!
|
|
echo "Spawned mysql_repl_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})
|
|
|
|
if [[ "${SKIP_SOGO}" =~ ^([nN][oO]|[nN])+$ ]]; then
|
|
(
|
|
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})
|
|
fi
|
|
|
|
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 ! dovecot_repl_checks; then
|
|
log_msg "Dovecot hit error limit"
|
|
echo dovecot_repl_checks > /tmp/com_pipe
|
|
fi
|
|
done
|
|
) &
|
|
PID=$!
|
|
echo "Spawned dovecot_repl_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} == "mysql_repl_checks" ]]; then
|
|
log_msg "MySQL replication is not working properly"
|
|
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}"
|
|
elif [[ ${com_pipe_answer} == "dovecot_repl_checks" ]]; then
|
|
log_msg "Dovecot replication is not working properly" "Please check doveadm replicator status"
|
|
[[ ! -z ${WATCHDOG_NOTIFY_EMAIL} ]] && mail_error "${com_pipe_answer}"
|
|
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
|