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Add ContainerStateExited and OCI delete() in cleanup()

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To work better with Kata containers, we need to delete() from the
OCI runtime as a part of cleanup, to ensure resources aren't
retained longer than they need to be.

To enable this, we need to add a new state to containers,
ContainerStateExited. Containers transition from
ContainerStateStopped to ContainerStateExited via cleanupRuntime
which is invoked as part of cleanup(). A container in the Exited
state is identical to Stopped, except it has been removed from
the OCI runtime and thus will be handled differently when
initializing the container.

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
This commit is contained in:
Matthew Heon
2018-09-23 18:04:29 -04:00
parent 89c5804fe0
commit 2c7f97d5a7
11 changed files with 99 additions and 86 deletions
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4
libpod/pod_api.go
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@ -77,7 +77,7 @@ func (p *Pod) Start(ctx context.Context) (map[string]error, error) {
// containers. The container ID is mapped to the error encountered. The error is
// set to ErrCtrExists
// If both error and the map are nil, all containers were stopped without error
func (p *Pod) Stop(cleanup bool) (map[string]error, error) {
func (p *Pod) Stop(ctx context.Context, cleanup bool) (map[string]error, error) {
p.lock.Lock()
defer p.lock.Unlock()
@ -118,7 +118,7 @@ func (p *Pod) Stop(cleanup bool) (map[string]error, error) {
}
if cleanup {
if err := ctr.cleanup(); err != nil {
if err := ctr.cleanup(ctx); err != nil {
ctrErrors[ctr.ID()] = err
}
}