/[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 194 by dpavlin, Mon Mar 22 21:48:27 2010 UTC revision 234 by dpavlin, Sat Jan 22 16:07:46 2011 UTC
# Line 40  lxc_rootfs() { Line 40  lxc_rootfs() {
40          grep '^ *lxc\.rootfs *=' "/var/lib/lxc/$1/config" | cut -d= -f2 | sed 's/^ *//'          grep '^ *lxc\.rootfs *=' "/var/lib/lxc/$1/config" | cut -d= -f2 | sed 's/^ *//'
41  }  }
42    
43    lxc_hostname() {
44            inside=`cat $(lxc_rootfs $1)/etc/hostname`
45            config=`grep lxc.utsname /var/lib/lxc/$name/config | cut -d= -f2`
46            echo "$config [$inside]";
47    }
48    
49    lxc_ip() {
50            ( grep lxc.network.ipv4 /var/lib/lxc/$name/config | cut -d= -f2 || \
51            grep address $(lxc_rootfs $name)/etc/network/interfaces | sed 's/.*address //' ) | \
52            sed -e 's/ *//g' -e 's/\/.*$//'
53    }
54    
55  lxc_status() {  lxc_status() {
56          lxc-ls -1 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do          ( find /var/lib/lxc/ -name "config" | cut -d/ -f5 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do
57                  boot="    "                  boot="-"
58                  test -s /var/lib/lxc/$name/on_boot && boot="boot"                  test -s /var/lib/lxc/$name/on_boot && boot="boot"
59                  echo "$name $status $boot $(lxc_rootfs $name)"                  echo "$name $status $boot $(lxc_rootfs $name) $(lxc_ip $name) $(lxc_hostname $name)"
60          done          done ) | column -t
61  }  }
62    
63    
# Line 54  cleanup_init_scripts() { Line 65  cleanup_init_scripts() {
65          rootfs=$(lxc_rootfs $1)          rootfs=$(lxc_rootfs $1)
66    
67          ls \          ls \
68                    $rootfs/etc/rc?.d/*checkroot* \
69                  $rootfs/etc/rc?.d/*umountfs \                  $rootfs/etc/rc?.d/*umountfs \
70                  $rootfs/etc/rc?.d/*umountroot \                  $rootfs/etc/rc?.d/*umountroot \
71                  $rootfs/etc/rc?.d/*hwclock* \                  $rootfs/etc/rc?.d/*hwclock* \
72                    $rootfs/etc/rc?.d/*udev* \
73          2>/dev/null | xargs -i rm -v {}          2>/dev/null | xargs -i rm -v {}
74    
75            echo $1 > $rootfs/etc/hostname
76            grep $1 $rootfs/etc/hosts || echo "$(lxc_ip $1) $1" >> $rootfs/etc/hosts
77  }  }
78    
79    
# Line 68  setup_inittab() { Line 84  setup_inittab() {
84    
85          # let container respond to kill -SIGPWR          # let container respond to kill -SIGPWR
86          inittab=$rootfs/etc/inittab          inittab=$rootfs/etc/inittab
87          if ! grep "$add" ${inittab} >/dev/null ; then          if test -e $inittab && ! grep "$add" ${inittab} >/dev/null ; then
88                  grep -v "$remove" ${inittab} > ${inittab}.new                  grep -v "$remove" ${inittab} > ${inittab}.new
89                  echo $add >> ${inittab}.new                  echo $add >> ${inittab}.new
90                  mv ${inittab}.new ${inittab}                  mv ${inittab}.new ${inittab}
# Line 106  lxc_stop() { Line 122  lxc_stop() {
122    
123  lxc_start() {  lxc_start() {
124          name=$1          name=$1
125            rootfs=$(lxc_rootfs $1)
126    
127            if [ ! -e $rootfs ] ; then
128                    echo "ERROR $name rootfs $rootfs not found"
129                    return
130            fi
131    
132          if ! lxc-info -n $name | grep RUNNING ; then          if ! lxc-info -n $name | grep RUNNING ; then
133                  lxc_log "$name start"                  lxc_log "$name start"
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