mirror of
https://github.com/containers/podman.git
synced 2025-08-06 03:19:52 +08:00
6214be07c2
This ensures that there is only one canonical place where containers in a pod are stored, in the state itself. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #268 Approved by: rhatdan
120 lines
2.6 KiB
Go
120 lines
2.6 KiB
Go
package libpod
|
|
|
|
import (
|
|
"path/filepath"
|
|
|
|
"github.com/containers/storage"
|
|
"github.com/docker/docker/pkg/namesgenerator"
|
|
"github.com/docker/docker/pkg/stringid"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
// Pod represents a group of containers that may share namespaces
|
|
type Pod struct {
|
|
id string
|
|
name string
|
|
labels map[string]string
|
|
|
|
valid bool
|
|
runtime *Runtime
|
|
lock storage.Locker
|
|
}
|
|
|
|
// ID retrieves the pod's ID
|
|
func (p *Pod) ID() string {
|
|
return p.id
|
|
}
|
|
|
|
// Name retrieves the pod's name
|
|
func (p *Pod) Name() string {
|
|
return p.name
|
|
}
|
|
|
|
// Labels returns the pod's labels
|
|
func (p *Pod) Labels() map[string]string {
|
|
labels := make(map[string]string)
|
|
for key, value := range p.labels {
|
|
labels[key] = value
|
|
}
|
|
|
|
return labels
|
|
}
|
|
|
|
// Creates a new, empty pod
|
|
func newPod(lockDir string, runtime *Runtime) (*Pod, error) {
|
|
pod := new(Pod)
|
|
pod.id = stringid.GenerateNonCryptoID()
|
|
pod.name = namesgenerator.GetRandomName(0)
|
|
pod.runtime = runtime
|
|
|
|
// Path our lock file will reside at
|
|
lockPath := filepath.Join(lockDir, pod.id)
|
|
// Grab a lockfile at the given path
|
|
lock, err := storage.GetLockfile(lockPath)
|
|
if err != nil {
|
|
return nil, errors.Wrapf(err, "error creating lockfile for new pod")
|
|
}
|
|
pod.lock = lock
|
|
|
|
return pod, nil
|
|
}
|
|
|
|
// Init() initializes all containers within a pod that have not been initialized
|
|
func (p *Pod) Init() error {
|
|
return ErrNotImplemented
|
|
}
|
|
|
|
// Start starts all containers within a pod that are not already running
|
|
func (p *Pod) Start() error {
|
|
return ErrNotImplemented
|
|
}
|
|
|
|
// Stop stops all containers within a pod that are not already stopped
|
|
func (p *Pod) Stop() error {
|
|
return ErrNotImplemented
|
|
}
|
|
|
|
// Kill sends a signal to all running containers within a pod
|
|
func (p *Pod) Kill(signal uint) error {
|
|
return ErrNotImplemented
|
|
}
|
|
|
|
// HasContainer checks if a container is present in the pod
|
|
func (p *Pod) HasContainer(id string) (bool, error) {
|
|
if !p.valid {
|
|
return false, ErrPodRemoved
|
|
}
|
|
|
|
return p.runtime.state.PodHasContainer(p, id)
|
|
}
|
|
|
|
// AllContainersID returns the container IDs of all the containers in the pod
|
|
func (p *Pod) AllContainersByID() ([]string, error) {
|
|
p.lock.Lock()
|
|
defer p.lock.Unlock()
|
|
|
|
if !p.valid {
|
|
return nil, ErrPodRemoved
|
|
}
|
|
|
|
return p.runtime.state.PodContainersByID(p)
|
|
}
|
|
|
|
// AllContainers retrieves the containers in the pod
|
|
func (p *Pod) AllContainers() ([]*Container, error) {
|
|
p.lock.Lock()
|
|
defer p.lock.Unlock()
|
|
|
|
if !p.valid {
|
|
return nil, ErrPodRemoved
|
|
}
|
|
|
|
return p.runtime.state.PodContainers(p)
|
|
}
|
|
|
|
// Status gets the status of all containers in the pod
|
|
// TODO This should return a summary of the states of all containers in the pod
|
|
func (p *Pod) Status() error {
|
|
return ErrNotImplemented
|
|
}
|