iankelling.org Git - distro-setup/blob - system-status

   1 #!/bin/bash
   2 # Copyright (C) 2019 Ian Kelling
   3 # SPDX-License-Identifier: AGPL-3.0-or-later
   4
   5 # usage: runs 4 times every 15 seconds unless any args are passed, then just runs once
   6
   7 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   8
   9 set -eE -o pipefail
  10 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  11
  12 status_file=/dev/shm/iank-status
  13
  14 shopt -s nullglob
  15 shopt -s dotglob
  16
  17 write-status() {
  18   chars=()
  19
  20   glob=(/nocow/btrfs-stale/*)
  21   if [[ -e $glob ]] ; then
  22     chars+=("STALE!")
  23   fi
  24   glob=(/m/md/bounces/new/*)
  25   if [[ -e $glob ]]; then
  26     chars+=("BOUNCE!")
  27   fi
  28   glob=(/m/md/alerts/new/* /m/md/alerts/cur/*)
  29   if [[ -e $glob ]]; then
  30     chars+=("ALERT!")
  31   fi
  32   if [[ -e /nocow/user/mailtest-failure ]]; then
  33     chars+=("MAILPING!")
  34   fi
  35   if [[ -s /var/log/exim4/paniclog ]]; then
  36     chars+=("PANIC!")
  37   fi
  38
  39   source /a/bin/bash_unpublished/source-state
  40   if [[ $MAIL_HOST == $HOSTNAME ]]; then
  41     if [[ $(systemctl is-active btrbk.timer) != active ]]; then
  42       chars+=("BTRBK-TIMER!")
  43     fi
  44
  45     ## check if last snapshot was within an hour
  46     vol=o
  47     snaps=(/mnt/root/btrbk/$vol.20*)
  48     now=$(date +%s)
  49     maxtime=0
  50     for s in ${snaps[@]}; do
  51       file=${s##*/}
  52       t=$(date -d $(sed -r  's/(.{4})(..)(.{5})(..)(.*)/\1-\2-\3:\4:\5/' <<<${file#$vol.}) +%s)
  53       if (( t > maxtime )); then
  54         maxtime=$t
  55       fi
  56     done
  57     if (( maxtime < now - 60*60 )); then
  58       chars+=("OLD-SNAPSHOT!")
  59     fi
  60   fi
  61
  62   cat /a/bin/bash_unpublished/source-state >$status_file
  63
  64   if [[ $chars ]]; then
  65     echo "ps_char=\"${chars[*]} \$ps_char\"" >>$status_file
  66   fi
  67
  68 }
  69 write-status
  70 if [[ $@ ]]; then
  71   cat $status_file
  72   exit 0
  73 fi
  74 for ((i=1; i<=3; i++)); do
  75   sleep 15
  76   write-status
  77 done