| description "Docker daemon" |
| |
| start on (filesystem and net-device-up IFACE!=lo) |
| stop on runlevel [!2345] |
| |
| limit nofile 524288 1048576 |
| |
| # Having non-zero limits causes performance problems due to accounting overhead |
| # in the kernel. We recommend using cgroups to do container-local accounting. |
| limit nproc unlimited unlimited |
| |
| respawn |
| |
| kill timeout 20 |
| |
| 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) |
| DOCKERD=/usr/bin/dockerd |
| DOCKER_OPTS= |
| if [ -f /etc/default/$UPSTART_JOB ]; then |
| . /etc/default/$UPSTART_JOB |
| fi |
| exec "$DOCKERD" $DOCKER_OPTS --raw-logs |
| end script |
| |
| # Don't emit "started" event until docker.sock is ready. |
| # See https://github.com/docker/docker/issues/6647 |
| post-start script |
| DOCKER_OPTS= |
| DOCKER_SOCKET= |
| if [ -f /etc/default/$UPSTART_JOB ]; then |
| . /etc/default/$UPSTART_JOB |
| fi |
| |
| if ! printf "%s" "$DOCKER_OPTS" | grep -qE -e '-H|--host'; then |
| DOCKER_SOCKET=/var/run/docker.sock |
| else |
| DOCKER_SOCKET=$(printf "%s" "$DOCKER_OPTS" | grep -oP -e '(-H|--host)\W*unix://\K(\S+)' | sed 1q) |
| fi |
| |
| if [ -n "$DOCKER_SOCKET" ]; then |
| while ! [ -e "$DOCKER_SOCKET" ]; do |
| initctl status $UPSTART_JOB | grep -qE "(stop|respawn)/" && exit 1 |
| echo "Waiting for $DOCKER_SOCKET" |
| sleep 0.1 |
| done |
| echo "$DOCKER_SOCKET is up" |
| fi |
| end script |