mdw@git.distorted.org.uk Git - rcheck/blob - rcheck

   1 #! /bin/sh
   2 ###
   3 ### Run everyday health checks on remote systems.
   4
   5 set -e
   6 prog=$0
   7 while
   8   case "$prog" in */*) ;; *) prog=./$prog ;; esac
   9   cd "${prog%/*}"
  10   [ -L "${prog##*/}" ]
  11 do
  12   prog=$(readlink "${prog##*/}")
  13 done
  14
  15 case $# in 0) set -- $(expand-list /etc/slaves :rcheck_hosts) ;; esac
  16
  17 exec 4>&1
  18 rc=0
  19 for host in "$@"; do
  20
  21   nrc=$(
  22     exec 5>&1
  23     { { { set +e
  24           tar czf - check check.d |
  25           ssh "$host" '
  26 set -e
  27 cd /tmp
  28
  29 i=0
  30 while :; do
  31   tmpdir=check.$$.$i
  32   if mkdir -m700 $tmpdir >/dev/null 2>&1; then break; fi
  33   case $i in
  34     500) echo >&2 "failed to create temporary directory"; exit 125 ;;
  35   esac
  36   i=$((i + 1))
  37 done
  38 trap "cd /; rm -rf /tmp/$tmpdir" INT TERM QUIT HUP EXIT
  39 cd $tmpdir
  40
  41 tar xzf -
  42 ./check'
  43           rc=$?; set -e; echo $rc >&5
  44           case $rc in
  45             0) ;;
  46             *) echo >&2 "remote check process failed (rc = $rc)" ;;
  47           esac
  48         } 1>&3; } 2>&1 |
  49       sed 's/^/!!! /'
  50     } 3>&1 |
  51     if IFS= read -r line; then
  52       cat <<EOF
  53 ###--------------------------------------------------------------------------
  54 ### $host
  55
  56 $line
  57 EOF
  58       cat
  59     fi >&4
  60   )
  61   if [ $nrc -gt $rc ]; then rc=$nrc; fi
  62 done
  63
  64 exit $rc