src/tests/lxc-test-automount

   1 #!/bin/bash
   2
   3 # lxc: linux Container library
   4
   5 # Authors:
   6 # Serge Hallyn <serge.hallyn@ubuntu.com>
   7
   8 # This library is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU Lesser General Public
  10 # License as published by the Free Software Foundation; either
  11 # version 2.1 of the License, or (at your option) any later version.
  12
  13 # This library is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 # Lesser General Public License for more details.
  17
  18 # You should have received a copy of the GNU Lesser General Public
  19 # License along with this library; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21
  22 # At the moment this only tests cgroup automount.  Testing proc and
  23 # sys automounts would be worthwhile.
  24
  25 [ -f /proc/self/ns/cgroup ] && exit 0
  26
  27 # cgmanager doesn't do the same cgroup filesystem mounting
  28 cgm ping && exit 0
  29
  30 set -ex
  31
  32 cleanup() {
  33         set +e
  34         rmdir /sys/fs/cgroup/freezer/xx
  35         lxc-destroy -n lxc-test-automount -f
  36         if [ $PHASE != "done" ]; then
  37                 echo "automount test failed at $PHASE"
  38                 exit 1
  39         fi
  40         echo "automount test passed"
  41         exit 0
  42 }
  43
  44 PHASE=setup
  45 trap cleanup EXIT
  46
  47 rmdir /sys/fs/cgroup/freezer/xx || true
  48 lxc-destroy -n lxc-test-automount -f || true
  49 lxc-create -t busybox -n lxc-test-automount
  50
  51 PHASE=no-cgroup
  52 echo "Starting phase $PHASE"
  53 config=/var/lib/lxc/lxc-test-automount/config
  54 sed -i '/lxc.mount.auto/d' $config
  55 echo "lxc.mount.auto = proc:mixed sys:mixed" >> $config
  56
  57 lxc-start -n lxc-test-automount
  58 pid=$(lxc-info -n lxc-test-automount -p -H)
  59 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
  60 notfound=0
  61 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
  62 [ $notfound -ne 0 ]
  63
  64 # Tests are as follows:
  65 # 1. check that freezer controller is mounted
  66 # 2. check that it is cgroupfs for cgroup-full (/cgroup.procs exists) or
  67 #    tmpfs for cgroup
  68 # 3. check that root cgroup dir is readonly or not (try mkdir)
  69 # 4. check that the container's cgroup dir is readonly or not
  70 # 5. check that the container's cgroup dir is cgroupfs (/cgroup.procs exists)
  71
  72 lxc-stop -n lxc-test-automount -k
  73 PHASE=cgroup:mixed
  74 echo "Starting phase $PHASE"
  75 sed -i '/lxc.mount.auto/d' $config
  76 echo "lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed" >> $config
  77 lxc-start -n lxc-test-automount
  78 pid=$(lxc-info -n lxc-test-automount -p -H)
  79 notfound=0
  80 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
  81 [ $notfound -ne 1 ]
  82 notfound=0
  83 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
  84 [ $notfound -ne 0 ]
  85 ro=0
  86 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
  87 [ $ro -ne 0 ]
  88 ro=0
  89 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx || ro=1
  90 [ $ro -ne 1 ]
  91 notfound=0
  92 stat /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
  93 [ $notfound -ne 1 ]
  94
  95 lxc-stop -n lxc-test-automount -k
  96 PHASE=cgroup:ro
  97 echo "Starting phase $PHASE"
  98 sed -i '/lxc.mount.auto/d' $config
  99 echo "lxc.mount.auto = cgroup:ro proc:mixed sys:mixed" >> $config
 100 lxc-start -n lxc-test-automount
 101 pid=$(lxc-info -n lxc-test-automount -p -H)
 102 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
 103 notfound=0
 104 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
 105 [ $notfound -ne 1 ]
 106 notfound=0
 107 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
 108 [ $notfound -ne 0 ]
 109 ro=0
 110 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
 111 [ $ro -ne 0 ]
 112 ro=0
 113 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx || ro=1
 114 [ $ro -ne 1 ]
 115 notfound=0
 116 stat /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
 117 [ $notfound -ne 1 ]
 118
 119 lxc-stop -n lxc-test-automount -k
 120 PHASE=cgroup:rw
 121 echo "Starting phase $PHASE"
 122 sed -i '/lxc.mount.auto/d' $config
 123 echo "lxc.mount.auto = cgroup:rw proc:mixed sys:mixed" >> $config
 124 lxc-start -n lxc-test-automount
 125 pid=$(lxc-info -n lxc-test-automount -p -H)
 126 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
 127 notfound=0
 128 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
 129 [ $notfound -ne 1 ]
 130 notfound=0
 131 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
 132 [ $notfound -ne 0 ]
 133 ro=0
 134 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
 135 [ $ro -ne 1 ]
 136 rmdir /proc/$pid/root/sys/fs/cgroup/freezer/xx
 137 ro=0
 138 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx || ro=1
 139 [ $ro -ne 1 ]
 140 notfound=0
 141 stat /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
 142 [ $notfound -ne 1 ]
 143
 144 # cgroup-full
 145
 146 lxc-stop -n lxc-test-automount -k
 147 PHASE=cgroup-full:mixed
 148 echo "Starting phase $PHASE"
 149 sed -i '/lxc.mount.auto/d' $config
 150 echo "lxc.mount.auto = cgroup-full:mixed  proc:mixed sys:mixed" >> $config
 151 lxc-start -n lxc-test-automount
 152 pid=$(lxc-info -n lxc-test-automount -p -H)
 153 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
 154 notfound=0
 155 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
 156 [ $notfound -ne 1 ]
 157 notfound=0
 158 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
 159 [ $notfound -ne 1 ]
 160 ro=0
 161 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
 162 [ $ro -ne 0 ]
 163 ro=0
 164 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx || ro=1
 165 [ $ro -ne 1 ]
 166 rmdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx
 167 notfound=0
 168 stat /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
 169 [ $notfound -ne 1 ]
 170
 171 lxc-stop -n lxc-test-automount -k
 172 PHASE=cgroup-full:ro
 173 echo "Starting phase $PHASE"
 174 sed -i '/lxc.mount.auto/d' $config
 175 echo "lxc.mount.auto = cgroup-full:ro proc:mixed sys:mixed" >> $config
 176 lxc-start -n lxc-test-automount
 177 pid=$(lxc-info -n lxc-test-automount -p -H)
 178 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
 179 notfound=0
 180 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
 181 [ $notfound -ne 1 ]
 182 notfound=0
 183 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
 184 [ $notfound -ne 1 ]
 185 ro=0
 186 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
 187 [ $ro -ne 0 ]
 188 ro=0
 189 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xy || ro=1
 190 [ $ro -ne 0 ]
 191 notfound=0
 192 stat /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
 193 [ $notfound -ne 1 ]
 194
 195 lxc-stop -n lxc-test-automount -k
 196 PHASE=cgroup-full:rw
 197 echo "Starting phase $PHASE"
 198 sed -i '/lxc.mount.auto/d' $config
 199 echo "lxc.mount.auto = cgroup-full:rw proc:mixed sys:mixed" >> $config
 200 lxc-start -n lxc-test-automount
 201 pid=$(lxc-info -n lxc-test-automount -p -H)
 202 cg=$(awk -F: '/freezer/ { print $3 }' /proc/$pid/cgroup)
 203 notfound=0
 204 stat /proc/$pid/root/sys/fs/cgroup/freezer || notfound=1
 205 [ $notfound -ne 1 ]
 206 notfound=0
 207 stat /proc/$pid/root/sys/fs/cgroup/freezer/cgroup.procs || notfound=1
 208 [ $notfound -ne 1 ]
 209 ro=0
 210 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/xx || ro=1
 211 [ $ro -ne 1 ]
 212 rmdir /proc/$pid/root/sys/fs/cgroup/freezer/xx
 213 ro=0
 214 mkdir /proc/$pid/root/sys/fs/cgroup/freezer/$cg/xx || ro=1
 215 [ $ro -ne 1 ]
 216 notfound=0
 217 /proc/$pid/root/sys/fs/cgroup/freezer/$cg/cgroup.procs || notfound=1
 218 [ $notfound -eq 1 ]
 219
 220 PHASE=done