4e7cf5413d
This is to check if runc 1.0.0 (to be released shortly) works with k8s. The commands used were (roughly): hack/pin-dependency.sh github.com/opencontainers/runc v1.0.0 hack/lint-dependencies.sh # Follow its recommendations. hack/pin-dependency.sh github.com/cilium/ebpf v0.6.1 hack/pin-dependency.sh github.com/opencontainers/selinux v1.8.2 hack/pin-dependency.sh github.com/sirupsen/logrus v1.8.1 # Recheck. hack/lint-dependencies.sh GO111MODULE=on go mod edit -dropreplace github.com/willf/bitset hack/update-vendor.sh # Recheck. hack/lint-dependencies.sh hack/update-internal-modules.sh # Recheck. hack/lint-dependencies.sh [v2: rebased, updated runc 3a0234e1fe2e82 -> 2f8e8e9d977500] [v3: testing master + runc pr 3019] [v4: updated to 93a01cd4d0b7a0f08a] [v5: updated to f093cca13d3cf8a484] [v6: rebased] [v7: updated to runc v1.0.0] [v8: rebased] Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
// +build linux
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package fs
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import (
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"fmt"
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"path/filepath"
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"strconv"
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"github.com/opencontainers/runc/libcontainer/cgroups"
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"github.com/opencontainers/runc/libcontainer/cgroups/fscommon"
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"github.com/opencontainers/runc/libcontainer/configs"
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)
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type PidsGroup struct{}
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func (s *PidsGroup) Name() string {
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return "pids"
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}
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func (s *PidsGroup) Apply(path string, d *cgroupData) error {
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return join(path, d.pid)
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}
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func (s *PidsGroup) Set(path string, r *configs.Resources) error {
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if r.PidsLimit != 0 {
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// "max" is the fallback value.
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limit := "max"
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if r.PidsLimit > 0 {
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limit = strconv.FormatInt(r.PidsLimit, 10)
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}
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if err := cgroups.WriteFile(path, "pids.max", limit); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *PidsGroup) GetStats(path string, stats *cgroups.Stats) error {
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if !cgroups.PathExists(path) {
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return nil
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}
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current, err := fscommon.GetCgroupParamUint(path, "pids.current")
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if err != nil {
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return fmt.Errorf("failed to parse pids.current - %s", err)
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}
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maxString, err := fscommon.GetCgroupParamString(path, "pids.max")
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if err != nil {
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return fmt.Errorf("failed to parse pids.max - %s", err)
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}
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// Default if pids.max == "max" is 0 -- which represents "no limit".
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var max uint64
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if maxString != "max" {
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max, err = fscommon.ParseUint(maxString, 10, 64)
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if err != nil {
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return fmt.Errorf("failed to parse pids.max - unable to parse %q as a uint from Cgroup file %q", maxString, filepath.Join(path, "pids.max"))
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}
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}
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stats.PidsStats.Current = current
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stats.PidsStats.Limit = max
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return nil
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}
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