/[sysadmin-cookbook]/recepies/lxc/lxc-watchdog.sh
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Diff of /recepies/lxc/lxc-watchdog.sh

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revision 187 by dpavlin, Tue Mar 16 21:36:45 2010 UTC revision 190 by root, Tue Mar 16 23:14:38 2010 UTC
# Line 16  Line 16 
16  #  #
17  # based on Tony Risinger post to lxc-users mailing list  # based on Tony Risinger post to lxc-users mailing list
18  # http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00074.html  # http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00074.html
19    #
20    # Install with:
21    # ln -sf /srv/sysadmin-cookbook/recepies/lxc/lxc-watchdog.sh /etc/init.d/lxc-watchdog
22    # update-rc.d lxc-watchdog defaults
23    
24    
25  which inotifywait >/dev/null || apt-get install inotify-tools  which inotifywait >/dev/null || apt-get install inotify-tools
# Line 39  lxc_rootfs() { Line 43  lxc_rootfs() {
43    
44  lxc_status() {  lxc_status() {
45          lxc-ls -1 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do          lxc-ls -1 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do
46                  on_boot="       "                  boot="    "
47                  test -s /var/lib/lxc/$name/on_boot && on_boot="on_boot"                  test -s /var/lib/lxc/$name/on_boot && boot="boot"
48                  echo "$name $status $on_boot $(lxc_rootfs $name)"                  echo "$name $status $boot $(lxc_rootfs $name)"
49          done          done
50  }  }
51    
# Line 73  setup_inittab() { Line 77  setup_inittab() {
77  }  }
78    
79    
80    lxc_log() {
81            echo `date +%Y-%m-%dT%H:%M:%S` $*
82    }
83    
84    
85  lxc_kill() {  lxc_kill() {
86          name=$1          name=$1
87          sig=$2          sig=$2
# Line 82  lxc_kill() { Line 91  lxc_kill() {
91                  lxc-info -n $name                  lxc-info -n $name
92                  exit 1                  exit 1
93          fi          fi
94          echo "$name kill $sig $init_pid"          lxc_log "$name kill $sig $init_pid"
95          /bin/kill $sig $init_pid          /bin/kill $sig $init_pid
96  }  }
97    
98  lxc_stop() {  lxc_stop() {
99            lxc_log "$name stop"
100          lxc_kill $name -SIGPWR          lxc_kill $name -SIGPWR
101          lxc-wait -n $name -s STOPPED          lxc-wait -n $name -s STOPPED
102            lxc_log "$name stoped"
103  #       rm -f /var/lib/lxc/${name}/on_boot  #       rm -f /var/lib/lxc/${name}/on_boot
104  }  }
105    
# Line 97  lxc_start() { Line 108  lxc_start() {
108          name=$1          name=$1
109    
110          if ! lxc-info -n $name | grep RUNNING ; then          if ! lxc-info -n $name | grep RUNNING ; then
111                  echo "$name start"                  lxc_log "$name start"
112                  lxc-start -n $name -o /tmp/${name}.log -d                  lxc-start -n $name -o /tmp/${name}.log -d
113                  lxc-wait  -n $name -s RUNNING                  lxc-wait  -n $name -s RUNNING
114                  lxc-info  -n $name                  lxc-info  -n $name
# Line 105  lxc_start() { Line 116  lxc_start() {
116          fi          fi
117  }  }
118    
 lxc_log() {  
         echo `date +%Y-%m-%dT%H:%M:%S` $*  
 }  
   
119  lxc_watchdog() {  lxc_watchdog() {
120  name=$1  name=$1
121  rootfs=$(lxc_rootfs $1)  rootfs=$(lxc_rootfs $1)
# Line 152  while true; do Line 159  while true; do
159          inotifywait -qqt 300 ${vps_utmp}          inotifywait -qqt 300 ${vps_utmp}
160  done  done
161    
162  lxc_log "$name exited"  lxc_log "$name watchdog exited"
163    
164  }  }
165    
166    
167    usage() {
168            echo "Usage: $0 {start|stop|restart|status|boot|disable} [name name ... ]" >&2
169            exit 3
170    }
171    
172  command_on_lxc() {  command_on_lxc() {
173  command=$1  command=$1
174  shift  shift
# Line 184  reload|force-reload|restart|reboot) Line 196  reload|force-reload|restart|reboot)
196  watchdog)  watchdog)
197          lxc_watchdog $1          lxc_watchdog $1
198          ;;          ;;
199    boot)
200            echo $1 > /var/lib/lxc/$1/on_boot
201            ;;
202    disable)
203            echo -n > /var/lib/lxc/$1/on_boot
204            ;;
205  *)  *)
206          echo "Usage: $0 {start|stop|restart|status}" >&2          usage
         exit 3  
207          ;;          ;;
208    
209  esac  esac
# Line 194  esac Line 211  esac
211  }  }
212    
213  command=$1  command=$1
214  shift  test -z "$command" && usage
   
215  test "$command" = "status" && lxc_status && exit  test "$command" = "status" && lxc_status && exit
216    shift
217    
218  if [ -z "$1" ] ; then  if [ -z "$1" ] ; then
219          ls /var/lib/lxc/*/on_boot | while read path ; do          ls /var/lib/lxc/*/on_boot | while read path ; do
220                  name=`echo $path | cut -d/ -f5`                  name=`echo $path | cut -d/ -f5`
221                  command_on_lxc $command $name                  if [ "$command" != "start" -o "$command" = "start" -a -s $path ] ; then
222                            command_on_lxc $command $name
223                    else
224                            echo "# skip $command $name"
225                    fi
226          done          done
227  else  else
228          while [ ! -z "$1" ] ; do          while [ ! -z "$1" ] ; do
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