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87 lines
1.9 KiB
87 lines
1.9 KiB
sanitize_cgroups() { |
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mkdir -p /sys/fs/cgroup |
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mountpoint -q /sys/fs/cgroup || \ |
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mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup |
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mount -o remount,rw /sys/fs/cgroup |
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sed -e 1d /proc/cgroups | while read sys hierarchy num enabled; do |
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if [ "$enabled" != "1" ]; then |
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# subsystem disabled; skip |
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continue |
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fi |
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grouping="$(cat /proc/self/cgroup | cut -d: -f2 | grep "\\<$sys\\>")" |
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if [ -z "$grouping" ]; then |
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# subsystem not mounted anywhere; mount it on its own |
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grouping="$sys" |
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fi |
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mountpoint="/sys/fs/cgroup/$grouping" |
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mkdir -p "$mountpoint" |
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# clear out existing mount to make sure new one is read-write |
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if mountpoint -q "$mountpoint"; then |
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umount "$mountpoint" |
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fi |
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mount -n -t cgroup -o "$grouping" cgroup "$mountpoint" |
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if [ "$grouping" != "$sys" ]; then |
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if [ -L "/sys/fs/cgroup/$sys" ]; then |
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rm "/sys/fs/cgroup/$sys" |
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fi |
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ln -s "$mountpoint" "/sys/fs/cgroup/$sys" |
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fi |
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done |
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} |
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start_docker() { |
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mkdir -p /var/log |
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mkdir -p /var/run |
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sanitize_cgroups |
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# check for /proc/sys being mounted readonly, as systemd does |
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if grep '/proc/sys\s\+\w\+\s\+ro,' /proc/mounts >/dev/null; then |
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mount -o remount,rw /proc/sys |
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fi |
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local server_args="" |
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for registry in $1; do |
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server_args="${server_args} --insecure-registry ${registry}" |
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done |
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if [ -n "$2" ]; then |
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server_args="${server_args} --registry-mirror=$2" |
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fi |
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if [ -n "$3" ]; then |
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server_args="${server_args} -g=$3" |
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fi |
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docker daemon --data-root /scratch/docker ${server_args} >/tmp/docker.log 2>&1 & |
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echo $! > /tmp/docker.pid |
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trap stop_docker EXIT |
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sleep 1 |
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until docker info >/dev/null 2>&1; do |
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echo waiting for docker to come up... |
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sleep 1 |
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done |
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} |
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stop_docker() { |
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local pid=$(cat /tmp/docker.pid) |
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if [ -z "$pid" ]; then |
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return 0 |
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fi |
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kill -TERM $pid |
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wait $pid |
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} |