minikube script for nested cgroups #3173
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Move applyChanges used to patch the containerd configuration file to its own file. Useful for next commit. Signed-off-by: Kornilios Kourtis <[email protected]>
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Add a command to patch crio.conf to add allowed annotations. For example: > $ ssh cat /etc/crio/crio.conf > crio.conf > $ ./tetragon-oci-hook-setup patch-crio-conf enable-annotations --config-file=crio.conf --output-file crio-patched.conf --annotations='io.kubernetes.cri-o.cgroup2-mount-hierarchy-rw' > $ diff -u crio.conf crio-patched.conf > --- crio.conf 2024-11-29 10:47:11.622015385 +0100 > +++ crio-patched.conf 2024-11-29 11:03:39.856306109 +0100 > @@ -300,6 +300,7 @@ > runtime_path = "/usr/bin/runc" > runtime_type = "oci" > runtime_root = "/run/runc" > +allowed_annotations = ["io.kubernetes.cri-o.cgroup2-mount-hierarchy-rw"] Signed-off-by: Kornilios Kourtis <[email protected]>
Example: $ minikube start --driver=kvm2 --container-runtime=crio $ ./scripts/minikube-enable-nested-cgroups.sh And now: $ kubectl run --annotations='io.kubernetes.cri-o.cgroup2-mount-hierarchy-rw=true' ubuntu --image=ubuntu --rm -it -- /bin/bash root@ubuntu:/# cat /proc/self/cgroup ## <-- inside pod 0::/ root@ubuntu:/# mkdir /sys/fs/cgroup/pizza root@ubuntu:/# echo $$ > /sys/fs/cgroup/pizza/cgroup.procs root@ubuntu:/# cat /proc/self/cgroup 0::/pizza Signed-off-by: Kornilios Kourtis <[email protected]>
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Add a script to create a minikube instance with nested cgroups supported. See commits.