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package supervisor // import "github.com/docker/docker/libcontainerd/supervisor"
import (
"os"
"path/filepath"
"syscall"
"time"
"github.com/containerd/containerd/defaults"
"github.com/docker/docker/pkg/system"
)
const (
sockFile = "containerd.sock"
debugSockFile = "containerd-debug.sock"
)
func (r *remote) setDefaults() {
if r.GRPC.Address == "" {
r.GRPC.Address = filepath.Join(r.stateDir, sockFile)
}
if r.GRPC.MaxRecvMsgSize == 0 {
r.GRPC.MaxRecvMsgSize = defaults.DefaultMaxRecvMsgSize
}
if r.GRPC.MaxSendMsgSize == 0 {
r.GRPC.MaxSendMsgSize = defaults.DefaultMaxSendMsgSize
}
if r.Debug.Address == "" {
r.Debug.Address = filepath.Join(r.stateDir, debugSockFile)
}
for key, conf := range r.pluginConfs.Plugins {
if conf == nil {
r.DisabledPlugins = append(r.DisabledPlugins, key)
delete(r.pluginConfs.Plugins, key)
}
}
}
func (r *remote) stopDaemon() {
// Ask the daemon to quit
syscall.Kill(r.daemonPid, syscall.SIGTERM)
// Wait up to 15secs for it to stop
for i := time.Duration(0); i < shutdownTimeout; i += time.Second {
if !system.IsProcessAlive(r.daemonPid) {
break
}
time.Sleep(time.Second)
}
if system.IsProcessAlive(r.daemonPid) {
r.logger.WithField("pid", r.daemonPid).Warn("daemon didn't stop within 15 secs, killing it")
syscall.Kill(r.daemonPid, syscall.SIGKILL)
}
}
func (r *remote) killDaemon() {
// Try to get a stack trace
syscall.Kill(r.daemonPid, syscall.SIGUSR1)
<-time.After(100 * time.Millisecond)
system.KillProcess(r.daemonPid)
}
func (r *remote) platformCleanup() {
os.Remove(filepath.Join(r.stateDir, sockFile))
}
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