node/healthcheck.sh

#!/bin/bash

containerstart=`stat -c %Z /proc/1`
curtime=`date +%s`
if (( curtime-containerstart < 180 )); then
    while ! mongo --host "${DB_CLUSTER}" --eval "db.runCommand( { connectionStatus: 1 } )"; do echo "Waiting for ${DB_CLUSTER} to be available"; sleep 1; done
    echo "0"
    exit 0
fi

curl -f 127.0.0.1:8090/login || exit 1

# Проверяем наличие файла с переменной time_to_dead
if [ -f /tmp/dead ];then
  if (( ${curtime} > $(cat /tmp/dead) ));then kill 1;fi
else
# Определяем изменился ли адрес админки
  ping -c3 $(cat /tmp/admin_ip)
  if [[ $? -ne 0 ]]; then
    new_admin_ip=$(dig +short ${ADMIN_HOST}.${APPNET})
    if [[ ${new_admin_ip} != $(cat /tmp/admin_ip) ]];then
      ping -c3 ${new_admin_ip} || exit 0
    fi
# Вычисляем адреса task'ов и сортируем их
    sorted=($(echo $(dig tasks.${SERVICE_NAME}.${APPNET} +short)|tr " " "\n"|sort -n))
    for (( i=0; i < ${#sorted[*]}; i++ ))
    do
      [[ $(ip a | grep ${sorted[${i}]}) ]] && echo $((${i}*180+$(date +%s)+40)) > /tmp/dead
    done
  fi
fi
exit 0