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Merge pull request #4574 from tianon/fix-cgroup-hax

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Fix init script cgroup mounting workarounds to be more similar to cgroupfs-mount...
This commit is contained in:
Tianon Gravi 2014-03-11 22:21:01 -06:00
commit f544ebd55a
2 changed files with 51 additions and 23 deletions
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41
contrib/init/sysvinit-debian/docker
View file

@ -21,6 +21,7 @@ BASE=$(basename $0)
# modify these in /etc/default/$BASE (/etc/default/docker)
DOCKER=/usr/bin/$BASE
DOCKER_PIDFILE=/var/run/$BASE.pid
DOCKER_LOGFILE=/var/log/$BASE.log
DOCKER_OPTS=
DOCKER_DESC="Docker"
@ -50,23 +51,37 @@ fail_unless_root() {
fi
}
cgroupfs_mount() {
# see also https://github.com/tianon/cgroupfs-mount/blob/master/cgroupfs-mount
if grep -v '^#' /etc/fstab | grep -q cgroup \
|| [ ! -e /proc/cgroups ] \
|| [ ! -d /sys/fs/cgroup ]; then
return
fi
if ! mountpoint -q /sys/fs/cgroup; then
mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
fi
(
cd /sys/fs/cgroup
for sys in $(awk '!/^#/ { if ($4 == 1) print $1 }' /proc/cgroups); do
mkdir -p $sys
if ! mountpoint -q $sys; then
if ! mount -n -t cgroup -o $sys cgroup $sys; then
rmdir $sys || true
fi
fi
done
)
}
case "$1" in
start)
fail_unless_root
if ! grep -q cgroup /proc/mounts; then
# rough approximation of cgroupfs-mount
mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
for sys in $(cut -d' ' -f1 /proc/cgroups); do
mkdir -p /sys/fs/cgroup/$sys
if ! mount -n -t cgroup -o $sys cgroup /sys/fs/cgroup/$sys 2>/dev/null; then
rmdir /sys/fs/cgroup/$sys 2>/dev/null || true
fi
done
fi
cgroupfs_mount
touch /var/log/docker.log
chgrp docker /var/log/docker.log
touch "$DOCKER_LOGFILE"
chgrp docker "$DOCKER_LOGFILE"
log_begin_msg "Starting $DOCKER_DESC: $BASE"
start-stop-daemon --start --background \
@ -76,7 +91,7 @@ case "$1" in
-- \
-d -p "$DOCKER_PIDFILE" \
$DOCKER_OPTS \
> /var/log/docker.log 2>&1
>> "$DOCKER_LOGFILE" 2>&1
log_end_msg $?
;;

33
contrib/init/upstart/docker.conf
View file

@ -5,6 +5,29 @@ stop on runlevel [!2345]
respawn
pre-start script
# see also https://github.com/tianon/cgroupfs-mount/blob/master/cgroupfs-mount
if grep -v '^#' /etc/fstab | grep -q cgroup \
|| [ ! -e /proc/cgroups ] \
|| [ ! -d /sys/fs/cgroup ]; then
exit 0
fi
if ! mountpoint -q /sys/fs/cgroup; then
mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
fi
(
cd /sys/fs/cgroup
for sys in $(awk '!/^#/ { if ($4 == 1) print $1 }' /proc/cgroups); do
mkdir -p $sys
if ! mountpoint -q $sys; then
if ! mount -n -t cgroup -o $sys cgroup $sys; then
rmdir $sys || true
fi
fi
done
)
end script
script
# modify these in /etc/default/$UPSTART_JOB (/etc/default/docker)
DOCKER=/usr/bin/$UPSTART_JOB
@ -12,15 +35,5 @@ script
if [ -f /etc/default/$UPSTART_JOB ]; then
. /etc/default/$UPSTART_JOB
fi
if ! grep -q cgroup /proc/mounts; then
# rough approximation of cgroupfs-mount
mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
for sys in $(cut -d' ' -f1 /proc/cgroups); do
mkdir -p /sys/fs/cgroup/$sys
if ! mount -n -t cgroup -o $sys cgroup /sys/fs/cgroup/$sys 2>/dev/null; then
rmdir /sys/fs/cgroup/$sys 2>/dev/null || true
fi
done
fi
"$DOCKER" -d $DOCKER_OPTS
end script