62 lines
1.4 KiB
Bash
Executable File
62 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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dir="$( cd "$( dirname "$0" )" && pwd )"
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touch $dir/lockfile
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if [ -z "$1" ] || [ -z "$2" ]; then
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echo "invalid args"
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exit
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fi
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lang=$1
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epoch=$(date +%s%N)
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basepath="/var/lib/lxc/piston/rootfs"
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filepath="/tmp/$epoch/code.code"
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argpath="/tmp/$epoch/args.args"
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stdinpath="/tmp/$epoch/stdin.stdin"
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arg=$(basename $argpath)
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# write arg file
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mkdir -p $basepath/tmp/$epoch
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chmod 777 $basepath/tmp/$epoch
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cat $2 > $basepath$filepath
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echo $3 > $basepath$stdinpath
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echo -n "${@:4}" > $basepath$argpath
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# process incrementor
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exec 200>$dir/lockfile
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flock -x 200
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oldinc=$(cat $dir/i | awk '{$1=$1};1')
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newinc=$(expr $oldinc + 1)
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if (( newinc >= 151 )); then
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newinc=1
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echo 1 > $dir/i
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else
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echo $newinc > $dir/i
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fi
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exec 200>&-
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# runner
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timeout -s KILL 20 \
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lxc-attach --clear-env -n piston -- \
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/bin/bash -l -c "runuser runner$newinc /exec/$lang $newinc $epoch"
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# process janitor
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lxc-attach --clear-env -n piston -- \
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/bin/bash -l -c "
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for i in {1..100}
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do
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pkill -u runner$newinc --signal SIGKILL
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done
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find /tmp -user runner$newinc -delete
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find /var/tmp -user runner$newinc -delete
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find /var/lock -user runner$newinc -delete
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find /dev/shm -user runner$newinc -delete
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find /run/lock -user runner$newinc -delete
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" > /dev/null 2>&1 &
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rm -rf $basepath/tmp/$epoch
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