72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package main
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import (
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"fmt"
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"os"
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"syscall"
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"github.com/Sirupsen/logrus"
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"github.com/docker/containerd"
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"github.com/docker/containerd/api/grpc/server"
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"github.com/docker/containerd/api/grpc/types"
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"github.com/docker/containerd/supervisor"
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"github.com/docker/docker/pkg/listeners"
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"google.golang.org/grpc"
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"google.golang.org/grpc/health"
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"google.golang.org/grpc/health/grpc_health_v1"
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)
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func startServer(protocol, address string, sv *supervisor.Supervisor) (*grpc.Server, error) {
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sockets, err := listeners.Init(protocol, address, "", nil)
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if err != nil {
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return nil, err
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}
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if len(sockets) != 1 {
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return nil, fmt.Errorf("incorrect number of listeners")
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}
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l := sockets[0]
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s := grpc.NewServer()
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types.RegisterAPIServer(s, server.NewServer(sv))
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healthServer := health.NewServer()
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grpc_health_v1.RegisterHealthServer(s, healthServer)
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go func() {
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logrus.Debugf("containerd: grpc api on %s", address)
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if err := s.Serve(l); err != nil {
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logrus.WithField("error", err).Fatal("containerd: serve grpc")
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}
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}()
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return s, nil
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}
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// getDefaultID returns the hostname for the instance host
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func getDefaultID() string {
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hostname, err := os.Hostname()
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if err != nil {
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panic(err)
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}
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return hostname
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}
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func checkLimits() error {
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var l syscall.Rlimit
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if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &l); err != nil {
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return err
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}
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if l.Cur <= minRlimit {
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logrus.WithFields(logrus.Fields{
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"current": l.Cur,
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"max": l.Max,
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}).Warn("containerd: low RLIMIT_NOFILE changing to max")
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l.Cur = l.Max
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return syscall.Setrlimit(syscall.RLIMIT_NOFILE, &l)
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}
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return nil
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}
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func getVersion() string {
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if containerd.GitCommit != "" {
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return fmt.Sprintf("%s commit: %s", containerd.Version, containerd.GitCommit)
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}
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return containerd.Version
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}
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