func createAPIContainer(c runtime.Container, getPids bool) (*types.Container, error) {
processes, err := c.Processes()
if err != nil {
return nil, grpc.Errorf(codes.Internal, "get processes for container: "+err.Error())
}
var procs []*types.Process
for _, p := range processes {
oldProc := p.Spec()
stdio := p.Stdio()
proc := &types.Process{
Pid: p.ID(),
SystemPid: uint32(p.SystemPid()),
Terminal: oldProc.Terminal,
Args: oldProc.Args,
Env: oldProc.Env,
Cwd: oldProc.Cwd,
Stdin: stdio.Stdin,
Stdout: stdio.Stdout,
Stderr: stdio.Stderr,
}
proc.User = &types.User{
Uid: oldProc.User.UID,
Gid: oldProc.User.GID,
AdditionalGids: oldProc.User.AdditionalGids,
}
proc.Capabilities = oldProc.Capabilities
proc.ApparmorProfile = oldProc.ApparmorProfile
proc.SelinuxLabel = oldProc.SelinuxLabel
proc.NoNewPrivileges = oldProc.NoNewPrivileges
for _, rl := range oldProc.Rlimits {
proc.Rlimits = append(proc.Rlimits, &types.Rlimit{
Type: rl.Type,
Soft: rl.Soft,
Hard: rl.Hard,
})
}
procs = append(procs, proc)
}
var pids []int
state, err := c.Status()
if err != nil {
return nil, grpc.Errorf(codes.Internal, "get status for container: "+err.Error())
}
if getPids && (state == runtime.Running || state == runtime.Paused) {
if pids, err = c.Pids(); err != nil {
return nil, grpc.Errorf(codes.Internal, "get all pids for container: "+err.Error())
}
}
return &types.Container{
Id: c.ID(),
BundlePath: c.Path(),
Processes: procs,
Labels: c.Labels(),
Status: string(state),
Pids: toUint32(pids),
Runtime: c.Runtime(),
}, nil
}
// stopCollection closes the channels for all subscribers and removes
// the container from metrics collection.
func (s *statsCollector) stopCollection(c runtime.Container) {
s.m.Lock()
if publisher, exists := s.publishers[c.ID()]; exists {
publisher.pub.Close()
delete(s.publishers, c.ID())
}
s.m.Unlock()
}
// unsubscribe removes a specific subscriber from receiving updates for a container's stats.
func (s *statsCollector) unsubscribe(c runtime.Container, ch chan interface{}) {
s.m.Lock()
publisher := s.publishers[c.ID()]
if publisher != nil {
publisher.pub.Evict(ch)
if publisher.pub.Len() == 0 {
delete(s.publishers, c.ID())
}
}
s.m.Unlock()
}
// collect registers the container with the collector and adds it to
// the event loop for collection on the specified interval returning
// a channel for the subscriber to receive on.
func (s *statsCollector) collect(c runtime.Container) chan interface{} {
s.m.Lock()
defer s.m.Unlock()
publisher, exists := s.publishers[c.ID()]
if !exists {
pub := pubsub.NewPublisher(100*time.Millisecond, 1024)
publisher = &statsPair{ct: c, pub: pub}
s.publishers[c.ID()] = publisher
}
return publisher.pub.Subscribe()
}
func createAPIContainer(c runtime.Container, getPids bool) (*types.Container, error) {
processes, err := c.Processes()
if err != nil {
return nil, grpc.Errorf(codes.Internal, "get processes for container: "+err.Error())
}
var procs []*types.Process
for _, p := range processes {
oldProc := p.Spec()
stdio := p.Stdio()
appendToProcs := &types.Process{
Pid: p.ID(),
SystemPid: uint32(p.SystemPid()),
Terminal: oldProc.Terminal,
Args: oldProc.Args,
Env: oldProc.Env,
Cwd: oldProc.Cwd,
Stdin: stdio.Stdin,
Stdout: stdio.Stdout,
Stderr: stdio.Stderr,
}
setUserFieldsInProcess(appendToProcs, oldProc)
procs = append(procs, appendToProcs)
}
var pids []int
state := c.State()
if getPids && (state == runtime.Running || state == runtime.Paused) {
if pids, err = c.Pids(); err != nil {
return nil, grpc.Errorf(codes.Internal, "get all pids for container: "+err.Error())
}
}
return &types.Container{
Id: c.ID(),
BundlePath: c.Path(),
Processes: procs,
Labels: c.Labels(),
Status: string(state),
Pids: toUint32(pids),
Runtime: c.Runtime(),
}, nil
}
func (h *DeleteEvent) deleteContainer(container runtime.Container) error {
delete(h.s.containers, container.ID())
return container.Delete()
}
func (s *Supervisor) deleteContainer(container runtime.Container) error {
delete(s.containers, container.ID())
return container.Delete()
}