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https://github.com/containers/podman.git
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2792e598c7
currently, setting any sort of resource limit in a pod does nothing. With the newly refactored creation process in c/common, podman ca now set resources at a pod level meaning that resource related flags can now be exposed to podman pod create. cgroupfs and systemd are both supported with varying completion. cgroupfs is a much simpler process and one that is virtually complete for all resource types, the flags now just need to be added. systemd on the other hand has to be handeled via the dbus api meaning that the limits need to be passed as recognized properties to systemd. The properties added so far are the ones that podman pod create supports as well as `cpuset-mems` as this will be the next flag I work on. Signed-off-by: Charlie Doern <cdoern@redhat.com>
58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
//go:build linux
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// +build linux
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package cgroups
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import (
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"path/filepath"
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"github.com/opencontainers/runc/libcontainer/cgroups"
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"github.com/opencontainers/runc/libcontainer/cgroups/fs"
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"github.com/opencontainers/runc/libcontainer/cgroups/fs2"
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"github.com/opencontainers/runc/libcontainer/configs"
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)
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type linuxCpusetHandler struct {
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CPUSet fs.CpusetGroup
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}
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func getCpusetHandler() *linuxCpusetHandler {
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return &linuxCpusetHandler{}
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}
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// Apply set the specified constraints
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func (c *linuxCpusetHandler) Apply(ctr *CgroupControl, res *configs.Resources) error {
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if ctr.cgroup2 {
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man, err := fs2.NewManager(ctr.config, filepath.Join(cgroupRoot, ctr.config.Path))
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if err != nil {
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return err
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}
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return man.Set(res)
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}
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path := filepath.Join(cgroupRoot, CPUset, ctr.config.Path)
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return c.CPUSet.Set(path, res)
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}
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// Create the cgroup
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func (c *linuxCpusetHandler) Create(ctr *CgroupControl) (bool, error) {
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if ctr.cgroup2 {
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path := filepath.Join(cgroupRoot, ctr.config.Path)
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return true, cpusetCopyFromParent(path, true)
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}
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created, err := ctr.createCgroupDirectory(CPUset)
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if !created || err != nil {
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return created, err
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}
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return true, cpusetCopyFromParent(ctr.getCgroupv1Path(CPUset), false)
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}
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// Destroy the cgroup
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func (c *linuxCpusetHandler) Destroy(ctr *CgroupControl) error {
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return rmDirRecursively(ctr.getCgroupv1Path(CPUset))
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}
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// Stat fills a metrics structure with usage stats for the controller
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func (c *linuxCpusetHandler) Stat(ctr *CgroupControl, m *cgroups.Stats) error {
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return nil
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}
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