ed47d6ba76
The rpc only reports one field, i.e. the cgroup driver, to kubelet. Containerd determines the effective cgroup driver by looking at all runtime handlers, starting from the default runtime handler (the rest in alphabetical order), and returning the cgroup driver setting of the first runtime handler that supports one. If no runtime handler supports cgroup driver (i.e. has a config option for it) containerd falls back to auto-detection, returning systemd if systemd is running and cgroupfs otherwise. This patch implements the CRI server side of Kubernetes KEP-4033: https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/4033-group-driver-detection-over-cri Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>
28 lines
505 B
Go
28 lines
505 B
Go
package cgroups
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import (
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"io/fs"
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"path/filepath"
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)
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// GetAllPids returns all pids from the cgroup identified by path, and all its
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// sub-cgroups.
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func GetAllPids(path string) ([]int, error) {
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var pids []int
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err := filepath.WalkDir(path, func(p string, d fs.DirEntry, iErr error) error {
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if iErr != nil {
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return iErr
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}
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if !d.IsDir() {
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return nil
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}
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cPids, err := readProcsFile(p)
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if err != nil {
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return err
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}
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pids = append(pids, cPids...)
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return nil
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})
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return pids, err
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}
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