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// +build linux,!remote
package system
import (
"context"
"net"
"os"
"strings"
api "github.com/containers/podman/v3/pkg/api/server"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/containers/podman/v3/pkg/domain/infra"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/pflag"
"golang.org/x/sys/unix"
)
func restService(opts entities.ServiceOptions, flags *pflag.FlagSet, cfg *entities.PodmanConfig) error {
var (
listener *net.Listener
err error
)
if opts.URI != "" {
if os.Getenv("LISTEN_FDS") != "" {
// If it is activated by systemd, use the first LISTEN_FD (3)
// instead of opening the socket file.
f := os.NewFile(uintptr(3), "podman.sock")
l, err := net.FileListener(f)
if err != nil {
return err
}
listener = &l
} else {
fields := strings.Split(opts.URI, ":")
if len(fields) == 1 {
return errors.Errorf("%s is an invalid socket destination", opts.URI)
}
network := fields[0]
address := strings.Join(fields[1:], ":")
l, err := net.Listen(network, address)
if err != nil {
return errors.Wrapf(err, "unable to create socket")
}
listener = &l
}
}
// Close stdin, so shortnames will not prompt
devNullfile, err := os.Open(os.DevNull)
if err != nil {
return err
}
defer devNullfile.Close()
if err := unix.Dup2(int(devNullfile.Fd()), int(os.Stdin.Fd())); err != nil {
return err
}
rt, err := infra.GetRuntime(context.Background(), flags, cfg)
if err != nil {
return err
}
infra.StartWatcher(rt)
server, err := api.NewServerWithSettings(rt, opts.Timeout, listener)
if err != nil {
return err
}
defer func() {
if err := server.Shutdown(); err != nil {
logrus.Warnf("Error when stopping API service: %s", err)
}
}()
err = server.Serve()
if listener != nil {
_ = (*listener).Close()
}
return err
}
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