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containerd-shim: Don't try to delete container twice

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Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
This commit is contained in:
Kenfe-Mickael Laventure 2017-08-14 16:08:09 -07:00
parent eb4abac9f7
commit c23f29ebce
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GPG Key ID: 40CF16616B361216
2 changed files with 76 additions and 51 deletions
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1
linux/runtime.go
View File

@ -185,6 +185,7 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts
}
// after the task is created, add it to the monitor
if err = r.monitor.Monitor(t); err != nil {
r.tasks.Delete(ctx, t)
return nil, err
}
return t, nil

126
linux/shim/service.go
View File

@ -58,7 +58,6 @@ type platform interface {
}
type Service struct {
initProcess *initProcess
path string
id string
bundle string
@ -83,7 +82,6 @@ func (s *Service) Create(ctx context.Context, r *shimapi.CreateTaskRequest) (*sh
// save the main task id and bundle to the shim for additional requests
s.id = r.ID
s.bundle = r.Bundle
s.initProcess = process
pid := process.Pid()
s.processes[r.ID] = process
s.mu.Unlock()
@ -111,8 +109,8 @@ func (s *Service) Create(ctx context.Context, r *shimapi.CreateTaskRequest) (*sh
}
func (s *Service) Start(ctx context.Context, r *shimapi.StartRequest) (*shimapi.StartResponse, error) {
p, ok := s.processes[r.ID]
if !ok {
p := s.getProcess(r.ID)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "process %s not found", r.ID)
}
if err := p.Start(ctx); err != nil {
@ -121,7 +119,7 @@ func (s *Service) Start(ctx context.Context, r *shimapi.StartRequest) (*shimapi.
if r.ID == s.id {
s.events <- &eventsapi.TaskStart{
ContainerID: s.id,
Pid: uint32(s.initProcess.Pid()),
Pid: uint32(p.Pid()),
}
} else {
pid := p.Pid()
@ -143,16 +141,15 @@ func (s *Service) Start(ctx context.Context, r *shimapi.StartRequest) (*shimapi.
}
func (s *Service) Delete(ctx context.Context, r *google_protobuf.Empty) (*shimapi.DeleteResponse, error) {
if s.initProcess == nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
p := s.initProcess
if err := p.Delete(ctx); err != nil {
return nil, err
}
s.mu.Lock()
delete(s.processes, p.ID())
s.mu.Unlock()
s.deleteProcess(p.ID())
s.events <- &eventsapi.TaskDelete{
ContainerID: s.id,
ExitStatus: uint32(p.ExitStatus()),
@ -167,24 +164,17 @@ func (s *Service) Delete(ctx context.Context, r *google_protobuf.Empty) (*shimap
}
func (s *Service) DeleteProcess(ctx context.Context, r *shimapi.DeleteProcessRequest) (*shimapi.DeleteResponse, error) {
if s.initProcess == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if r.ID == s.initProcess.id {
if r.ID == s.id {
return nil, grpc.Errorf(codes.InvalidArgument, "cannot delete init process with DeleteProcess")
}
s.mu.Lock()
p, ok := s.processes[r.ID]
s.mu.Unlock()
if !ok {
return nil, errors.Wrapf(errdefs.ErrNotFound, "process %s not found", r.ID)
p := s.getProcess(r.ID)
if p == nil {
return nil, errors.Wrapf(errdefs.ErrNotFound, "process %s", r.ID)
}
if err := p.Delete(ctx); err != nil {
return nil, err
}
s.mu.Lock()
delete(s.processes, p.ID())
s.mu.Unlock()
s.deleteProcess(r.ID)
return &shimapi.DeleteResponse{
ExitStatus: uint32(p.ExitStatus()),
ExitedAt: p.ExitedAt(),
@ -193,13 +183,19 @@ func (s *Service) DeleteProcess(ctx context.Context, r *shimapi.DeleteProcessReq
}
func (s *Service) Exec(ctx context.Context, r *shimapi.ExecProcessRequest) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
s.mu.Lock()
defer s.mu.Unlock()
process, err := newExecProcess(ctx, s.path, r, s.initProcess, r.ID)
if p := s.processes[r.ID]; p != nil {
return nil, errdefs.ToGRPCf(errdefs.ErrAlreadyExists, "id %s", r.ID)
}
p := s.processes[s.id]
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
process, err := newExecProcess(ctx, s.path, r, p.(*initProcess), r.ID)
if err != nil {
return nil, errdefs.ToGRPC(err)
}
@ -220,10 +216,8 @@ func (s *Service) ResizePty(ctx context.Context, r *shimapi.ResizePtyRequest) (*
Width: uint16(r.Width),
Height: uint16(r.Height),
}
s.mu.Lock()
p, ok := s.processes[r.ID]
s.mu.Unlock()
if !ok {
p := s.getProcess(r.ID)
if p == nil {
return nil, errors.Errorf("process does not exist %s", r.ID)
}
if err := p.Resize(ws); err != nil {
@ -233,8 +227,8 @@ func (s *Service) ResizePty(ctx context.Context, r *shimapi.ResizePtyRequest) (*
}
func (s *Service) State(ctx context.Context, r *shimapi.StateRequest) (*shimapi.StateResponse, error) {
p, ok := s.processes[r.ID]
if !ok {
p := s.getProcess(r.ID)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "process id %s not found", r.ID)
}
st, err := p.Status(ctx)
@ -270,10 +264,11 @@ func (s *Service) State(ctx context.Context, r *shimapi.StateRequest) (*shimapi.
}
func (s *Service) Pause(ctx context.Context, r *google_protobuf.Empty) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if err := s.initProcess.Pause(ctx); err != nil {
if err := p.(*initProcess).Pause(ctx); err != nil {
return nil, err
}
s.events <- &eventsapi.TaskPaused{
@ -283,10 +278,11 @@ func (s *Service) Pause(ctx context.Context, r *google_protobuf.Empty) (*google_
}
func (s *Service) Resume(ctx context.Context, r *google_protobuf.Empty) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if err := s.initProcess.Resume(ctx); err != nil {
if err := p.(*initProcess).Resume(ctx); err != nil {
return nil, err
}
s.events <- &eventsapi.TaskResumed{
@ -296,17 +292,19 @@ func (s *Service) Resume(ctx context.Context, r *google_protobuf.Empty) (*google
}
func (s *Service) Kill(ctx context.Context, r *shimapi.KillRequest) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if r.ID == "" {
if err := s.initProcess.Kill(ctx, r.Signal, r.All); err != nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if err := p.Kill(ctx, r.Signal, r.All); err != nil {
return nil, errdefs.ToGRPC(err)
}
return empty, nil
}
p, ok := s.processes[r.ID]
if !ok {
p := s.getProcess(r.ID)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "process id %s not found", r.ID)
}
if err := p.Kill(ctx, r.Signal, r.All); err != nil {
@ -326,8 +324,8 @@ func (s *Service) ListPids(ctx context.Context, r *shimapi.ListPidsRequest) (*sh
}
func (s *Service) CloseIO(ctx context.Context, r *shimapi.CloseIORequest) (*google_protobuf.Empty, error) {
p, ok := s.processes[r.ID]
if !ok {
p := s.getProcess(r.ID)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "process does not exist %s", r.ID)
}
if err := p.Stdin().Close(); err != nil {
@ -337,10 +335,11 @@ func (s *Service) CloseIO(ctx context.Context, r *shimapi.CloseIORequest) (*goog
}
func (s *Service) Checkpoint(ctx context.Context, r *shimapi.CheckpointTaskRequest) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if err := s.initProcess.Checkpoint(ctx, r); err != nil {
if err := p.(*initProcess).Checkpoint(ctx, r); err != nil {
return nil, errdefs.ToGRPC(err)
}
s.events <- &eventsapi.TaskCheckpointed{
@ -356,15 +355,35 @@ func (s *Service) ShimInfo(ctx context.Context, r *google_protobuf.Empty) (*shim
}
func (s *Service) Update(ctx context.Context, r *shimapi.UpdateTaskRequest) (*google_protobuf.Empty, error) {
if s.initProcess == nil {
p := s.getProcess(s.id)
if p == nil {
return nil, errdefs.ToGRPCf(errdefs.ErrFailedPrecondition, "container must be created")
}
if err := s.initProcess.Update(ctx, r); err != nil {
if err := p.(*initProcess).Update(ctx, r); err != nil {
return nil, errdefs.ToGRPC(err)
}
return empty, nil
}
func (s *Service) addProcess(id string, p process) {
s.mu.Lock()
s.processes[id] = p
s.mu.Unlock()
}
func (s *Service) getProcess(id string) process {
s.mu.Lock()
p := s.processes[id]
s.mu.Unlock()
return p
}
func (s *Service) deleteProcess(id string) {
s.mu.Lock()
delete(s.processes, id)
s.mu.Unlock()
}
func (s *Service) waitExit(p process, pid int, cmd *reaper.Cmd) {
status, _ := reaper.Default.WaitPid(pid)
p.SetExited(status)
@ -380,12 +399,17 @@ func (s *Service) waitExit(p process, pid int, cmd *reaper.Cmd) {
}
func (s *Service) getContainerPids(ctx context.Context, id string) ([]uint32, error) {
p, err := s.initProcess.runtime.Ps(ctx, id)
p := s.getProcess(s.id)
if p == nil {
return nil, errors.Wrapf(errdefs.ErrFailedPrecondition, "container must be created")
}
ps, err := p.(*initProcess).runtime.Ps(ctx, id)
if err != nil {
return nil, err
}
pids := make([]uint32, 0, len(p))
for _, pid := range p {
pids := make([]uint32, 0, len(ps))
for _, pid := range ps {
pids = append(pids, uint32(pid))
}
return pids, nil