diff options
Diffstat (limited to 'runsc/boot/loader.go')
| -rw-r--r-- | runsc/boot/loader.go | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go index a8adaf292..b91553c4c 100644 --- a/runsc/boot/loader.go +++ b/runsc/boot/loader.go @@ -138,6 +138,9 @@ type execProcess struct { // tty will be nil if the process is not attached to a terminal. tty *host.TTYFileOperations + + // pidnsPath is the pid namespace path in spec + pidnsPath string } func init() { @@ -298,7 +301,7 @@ func New(args Args) (*Loader, error) { // Create a watchdog. dog := watchdog.New(k, watchdog.DefaultTimeout, args.Conf.WatchdogAction) - procArgs, err := newProcess(args.ID, args.Spec, creds, k) + procArgs, err := newProcess(args.ID, args.Spec, creds, k, k.RootPIDNamespace()) if err != nil { return nil, fmt.Errorf("creating init process for root container: %v", err) } @@ -376,7 +379,7 @@ func New(args Args) (*Loader, error) { } // newProcess creates a process that can be run with kernel.CreateProcess. -func newProcess(id string, spec *specs.Spec, creds *auth.Credentials, k *kernel.Kernel) (kernel.CreateProcessArgs, error) { +func newProcess(id string, spec *specs.Spec, creds *auth.Credentials, k *kernel.Kernel, pidns *kernel.PIDNamespace) (kernel.CreateProcessArgs, error) { // Create initial limits. ls, err := createLimitSet(spec) if err != nil { @@ -396,7 +399,9 @@ func newProcess(id string, spec *specs.Spec, creds *auth.Credentials, k *kernel. IPCNamespace: k.RootIPCNamespace(), AbstractSocketNamespace: k.RootAbstractSocketNamespace(), ContainerID: id, + PIDNamespace: pidns, } + return procArgs, nil } @@ -559,6 +564,9 @@ func (l *Loader) run() error { } ep.tg = l.k.GlobalInit() + if ns, ok := specutils.GetNS(specs.PIDNamespace, l.spec); ok { + ep.pidnsPath = ns.Path + } if l.console { ttyFile, _ := l.rootProcArgs.FDTable.Get(0) defer ttyFile.DecRef() @@ -627,7 +635,24 @@ func (l *Loader) startContainer(spec *specs.Spec, conf *Config, cid string, file caps, l.k.RootUserNamespace()) - procArgs, err := newProcess(cid, spec, creds, l.k) + var pidns *kernel.PIDNamespace + if ns, ok := specutils.GetNS(specs.PIDNamespace, spec); ok { + if ns.Path != "" { + for _, p := range l.processes { + if ns.Path == p.pidnsPath { + pidns = p.tg.PIDNamespace() + break + } + } + } + if pidns == nil { + pidns = l.k.RootPIDNamespace().NewChild(l.k.RootUserNamespace()) + } + l.processes[eid].pidnsPath = ns.Path + } else { + pidns = l.k.RootPIDNamespace() + } + procArgs, err := newProcess(cid, spec, creds, l.k, pidns) if err != nil { return fmt.Errorf("creating new process: %v", err) } @@ -749,6 +774,7 @@ func (l *Loader) executeAsync(args *control.ExecArgs) (kernel.ThreadID, error) { // Start the process. proc := control.Proc{Kernel: l.k} + args.PIDNamespace = tg.PIDNamespace() newTG, tgid, ttyFile, err := control.ExecAsync(&proc, args) if err != nil { return 0, err |