mirror of
https://github.com/containers/podman
synced 2024-10-20 09:13:46 +00:00
11c282ab02
Refactor the `RuntimeConfig` along with related code from libpod into libpod/config. Note that this is a first step of consolidating code into more coherent packages to make the code more maintainable and less prone to regressions on the long runs. Some libpod definitions were moved to `libpod/define` to resolve circular dependencies. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
package libpod
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import (
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"fmt"
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"path/filepath"
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"time"
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"github.com/containers/libpod/libpod/define"
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"github.com/containers/storage/pkg/stringid"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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// Creates a new, empty pod
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func newPod(runtime *Runtime) (*Pod, error) {
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pod := new(Pod)
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pod.config = new(PodConfig)
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pod.config.ID = stringid.GenerateNonCryptoID()
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pod.config.Labels = make(map[string]string)
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pod.config.CreatedTime = time.Now()
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pod.config.InfraContainer = new(InfraContainerConfig)
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pod.state = new(podState)
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pod.runtime = runtime
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return pod, nil
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}
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// Update pod state from database
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func (p *Pod) updatePod() error {
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if err := p.runtime.state.UpdatePod(p); err != nil {
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return err
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}
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return nil
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}
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// Save pod state to database
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func (p *Pod) save() error {
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if err := p.runtime.state.SavePod(p); err != nil {
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return errors.Wrapf(err, "error saving pod %s state", p.ID())
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}
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return nil
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}
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// Refresh a pod's state after restart
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// This cannot lock any other pod, but may lock individual containers, as those
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// will have refreshed by the time pod refresh runs.
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func (p *Pod) refresh() error {
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// Need to to an update from the DB to pull potentially-missing state
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if err := p.runtime.state.UpdatePod(p); err != nil {
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return err
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}
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if !p.valid {
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return define.ErrPodRemoved
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}
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// Retrieve the pod's lock
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lock, err := p.runtime.lockManager.AllocateAndRetrieveLock(p.config.LockID)
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if err != nil {
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return errors.Wrapf(err, "error retrieving lock %d for pod %s", p.config.LockID, p.ID())
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}
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p.lock = lock
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// We need to recreate the pod's cgroup
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if p.config.UsePodCgroup {
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switch p.runtime.config.CgroupManager {
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case define.SystemdCgroupsManager:
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cgroupPath, err := systemdSliceFromPath(p.config.CgroupParent, fmt.Sprintf("libpod_pod_%s", p.ID()))
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if err != nil {
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logrus.Errorf("Error creating CGroup for pod %s: %v", p.ID(), err)
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}
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p.state.CgroupPath = cgroupPath
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case define.CgroupfsCgroupsManager:
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p.state.CgroupPath = filepath.Join(p.config.CgroupParent, p.ID())
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logrus.Debugf("setting pod cgroup to %s", p.state.CgroupPath)
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default:
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return errors.Wrapf(define.ErrInvalidArg, "unknown cgroups manager %s specified", p.runtime.config.CgroupManager)
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}
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}
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// Save changes
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return p.save()
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}
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