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 "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   8
   9 source /a/bin/errhandle/err
  10 status_file=/dev/shm/iank-status
  11
  12 shopt -s nullglob
  13 shopt -s dotglob
  14
  15 lo() { /usr/local/bin/log-once "$@"; }
  16
  17 write-status() {
  18   chars=()
  19
  20   glob=(/nocow/btrfs-stale/*)
  21   if [[ -e ${glob[0]} ]]; then
  22     chars+=("STALE!")
  23   fi
  24   glob=(/m/md/bounces/new/*)
  25   if [[ -e ${glob[0]} ]]; then
  26     chars+=("BOUNCE!")
  27     bouncemsg="message in /m/md/bounces/new"
  28   fi
  29   lo -1 bounce $bouncemsg
  30   glob=(/m/md/alerts/new/* /m/md/alerts/cur/*)
  31   if [[ -e ${glob[0]} ]]; then
  32     chars+=("ALERT!")
  33   fi
  34   if [[ -e /nocow/user/mailtest-failure ]]; then
  35     chars+=("MAILPING!")
  36   fi
  37
  38   qlen=$(/usr/sbin/exim -bpc)
  39   if ((qlen)); then
  40     chars+=("q $qlen")
  41   fi
  42
  43   if ! make -q ~/.local/distro-begin || [[ $(<~/.local/distro-begin) != 0 ]]; then
  44     chars+=("DISTRO-BEGIN!")
  45   fi
  46
  47   if ! make -q ~/.local/distro-end || [[ $(<~/.local/distro-end) != 0 ]]; then
  48     chars+=("DISTRO-END!")
  49   fi
  50
  51   f=~/.local/conflink
  52   if [[ -e $f ]]; then
  53     cd /b/ds
  54     now=$(date +%s)
  55     fsec=$(stat -c%Y $f)
  56     fmin=$(( (fsec - now ) / 60 + 1 ))
  57     fminplus=$(( fmin + 60*24 ))
  58     # Filesystem files get copied, so find any newer than the last run.
  59     # The rest are hueristics:
  60     # Given the last time we added a file in git, is that newer than the last conflink run.
  61     # Given new files not added to git, were they modified more recently than the last conflink? but,
  62     # push their modification time back by a day so we can develop them before needing to add them to git.
  63     if (( $(date -d "$(git log --diff-filter=ACR --format=%aD -1)" +%s) > fsec )) || \
  64          [[ $(find {/a/bin/ds,/p/c}{/filesystem,/machine_specific/$HOSTNAME/filesystem} -mmin $fmin -type f -print -quit 2>/dev/null) ]] \
  65          || [[ $(find $(git ls-files -o --exclude-standard) -mmin $fminplus -type f -print -quit) ]]; then
  66       chars+=("CONFLINK!")
  67     fi
  68   fi
  69
  70   if [[ ! -e $f || $(<$f) != 0 ]]; then
  71     chars+=("CONFLINK!")
  72   fi
  73
  74
  75   ## Clean the paniclog, but only up to 4 times per day, or else we
  76   ## should investigate.
  77   loglog=/tmp/panicloglog-$(date --rfc-3339=date)
  78   if [[ -s $loglog ]]; then
  79     spamcount=$(stat -c%s $loglog)
  80   else
  81     spamcount=0
  82   fi
  83   if (( spamcount <= 4 )); then
  84     if grep -q 'spam acl condition' /var/log/exim4/paniclog; then
  85       printf . >>$loglog
  86     fi
  87     /a/bin/distro-setup/epanic-clean
  88   fi
  89
  90   if [[ -s /var/log/exim4/paniclog ]]; then
  91     chars+=("PANIC!")
  92     tail -n 20 /var/log/exim4/paniclog | lo -1 paniclog
  93   else
  94     lo -1 paniclog
  95   fi
  96
  97   source /a/bin/bash_unpublished/source-state
  98   if [[ $MAIL_HOST == "$HOSTNAME" ]]; then
  99     if [[ $(systemctl is-active btrbk.timer) != active ]]; then
 100       chars+=("BTRBK.TIMER!")
 101       bbkmsg="btrbk.timer not enabled"
 102     fi
 103     lo -60 btrbk.timer $bbkmsg
 104
 105     ## check if last snapshot was within an hour
 106     vol=o
 107     # this section generally copied from btrbk scripts, but
 108     # this part modified to speed things up by about half a second.
 109     # I'm not sure if its quite as reliable, but it looks pretty safe.
 110     # Profiled it using time and also adding to the top of the file:
 111     # set -x
 112     # PS4='+ $(date "+%2N") '
 113     snaps=($(ls -1avdr /mnt/root/btrbk/$vol.20*|head -n1))
 114     now=$(date +%s)
 115     maxtime=0
 116     for s in ${snaps[@]}; do
 117       file=${s##*/}
 118       t=$(date -d $(sed -r  's/(.{4})(..)(.{5})(..)(.*)/\1-\2-\3:\4:\5/' <<<${file#$vol.}) +%s)
 119       if (( t > maxtime )); then
 120         maxtime=$t
 121       fi
 122     done
 123     if (( maxtime < now - 60*60 )); then
 124       chars+=("OLD-SNAPSHOT!")
 125       snapshotmsg="/o snapshot older than 1 hour"
 126     fi
 127     lo -1 old-snapshot $snapshotmsg
 128   fi
 129
 130   cat /a/bin/bash_unpublished/source-state >$status_file
 131
 132   if [[ ${chars[*]} ]]; then
 133     echo "ps_char=\"${chars[*]} \$ps_char\"" >>$status_file
 134   fi
 135
 136 }
 137 write-status
 138 if [[ $1 ]]; then
 139   cat $status_file
 140   exit 0
 141 fi
 142 for ((i=1; i<=3; i++)); do
 143   sleep 15
 144   write-status
 145 done