/usr/bin/lxc-wait is in lxc 0.7.5-3ubuntu52.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | #!/bin/bash
# (C) Copyright Canonical 2011,2012
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
usage() {
echo "Usage: lxc-wait --name=NAME --state=STATE"
}
help() {
usage
echo
echo "lxc-wait waits for NAME container state to reach STATE"
echo
echo "Options :"
echo " -n, --name=NAME NAME for name of the container"
echo " -s, --state=STATE ORed states to wait for"
echo " STOPPED, STARTING, RUNNING, STOPPING,"
echo " ABORTING, FREEZING, FROZEN"
}
set -e
valid_states=("STOPPED" "STARTING" "RUNNING" "STOPPING"
"ABORTING" "FREEZING" "FROZEN" "THAWED" "MAX_STATE")
container_exists() {
local c=$1
local list=`lxc-ls -1`
local name
for name in $list; do
if [ "$c" = "$name" ]; then
echo "yes"
fi
echo "no"
done
}
verify_state() {
local s="$1"
local i
for((i=0;i<${#valid_states[@]};i++)); do
if [ "$s" = "${valid_states[$i]}" ]; then
echo "ok"; return;
fi
done
echo "bad"; return;
}
badstate=""
verify_states() {
local states=$1
local s
local v
for s in $states; do
echo "verifying $s"
v=$(verify_state "$s")
if [ $v = "bad" ]; then
echo "bad";
badstate="$s"
return;
fi
done
echo "ok";
}
state_is_in() {
local state=$1
local states=$2
local s
for s in $states; do
if [ "$state" = "$s" ]; then
echo "yes"; return;
fi
done
echo "no"
}
shortoptions='hn:s:'
longoptions='help,name:,states:'
getopt=$(getopt -o $shortoptions --longoptions $longoptions -- "$@")
if [ $? != 0 ]; then
usage
exit 1;
fi
eval set -- "$getopt"
states="RUNNING"
while true; do
case "$1" in
-h|--help)
help
exit 1
;;
-n|--name)
shift
lxc_name=$1
shift
;;
-s|--states)
shift
states=$1
shift
;;
--)
shift
break;;
*)
echo $1
usage
exit 1
;;
esac
done
if [ -z "$lxc_name" ]; then
echo "no container name specified"
usage
exit 1
fi
if [ "$(id -u)" != "0" ]; then
echo "This command has to be run as root"
exit 1
fi
type lxc-info > /dev/null || { echo "lxc-info not found."; exit 1; }
v=$(container_exists $lxc_name)
if [ "$v" = "no" ]; then
echo "Container $lxc_name does not exist"
exit 1
fi
states2="`echo $states | sed -e 's/|/ /g'`"
v=$(verify_states "${states2}")
if [ "$v" = "bad" ]; then
echo "invalid state $badstate in provided set"
exit 1
fi
while [ 1 ]; do
o=`lxc-info -s -n $lxc_name`
s=`echo $o | awk '{ print $2 }'`
if [ $(state_is_in "$s" "${states2}") = "yes" ]; then
break;
fi
sleep 1
done
exit 0
|