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21 lines
1.3 KiB
21 lines
1.3 KiB
#!/bin/sh
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set -o errexit
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set -o nounset
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#########################################################################################################################################
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# DISCLAIMER #
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# Copied from https://github.com/moby/moby/blob/ed89041433a031cafc0a0f19cfe573c31688d377/hack/dind#L28-L37 #
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# Permission granted by Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> (https://github.com/k3d-io/k3d/issues/493#issuecomment-827405962) #
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# Moby License Apache 2.0: https://github.com/moby/moby/blob/ed89041433a031cafc0a0f19cfe573c31688d377/LICENSE #
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#########################################################################################################################################
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if [ -f /sys/fs/cgroup/cgroup.controllers ]; then
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echo "[$(date -Iseconds)] [CgroupV2 Fix] Evacuating Root Cgroup ..."
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# move the processes from the root group to the /init group,
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# otherwise writing subtree_control fails with EBUSY.
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mkdir -p /sys/fs/cgroup/init
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busybox xargs -rn1 < /sys/fs/cgroup/cgroup.procs > /sys/fs/cgroup/init/cgroup.procs || :
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# enable controllers
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sed -e 's/ / +/g' -e 's/^/+/' <"/sys/fs/cgroup/cgroup.controllers" >"/sys/fs/cgroup/cgroup.subtree_control"
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echo "[$(date -Iseconds)] [CgroupV2 Fix] Done"
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fi
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