107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
// +build linux,!remote
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package system
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import (
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"context"
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"net"
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"net/url"
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"os"
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"path/filepath"
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api "github.com/containers/podman/v3/pkg/api/server"
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"github.com/containers/podman/v3/pkg/domain/entities"
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"github.com/containers/podman/v3/pkg/domain/infra"
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"github.com/containers/podman/v3/pkg/servicereaper"
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"github.com/containers/podman/v3/pkg/util"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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"github.com/spf13/pflag"
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"golang.org/x/sys/unix"
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)
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func restService(flags *pflag.FlagSet, cfg *entities.PodmanConfig, opts entities.ServiceOptions) error {
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var (
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listener *net.Listener
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err error
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)
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if opts.URI != "" {
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uri, err := url.Parse(opts.URI)
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if err != nil {
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return errors.Errorf("%s is an invalid socket destination", opts.URI)
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}
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switch uri.Scheme {
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case "unix":
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path, err := filepath.Abs(uri.Path)
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if err != nil {
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return err
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}
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util.SetSocketPath(path)
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if os.Getenv("LISTEN_FDS") != "" {
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// If it is activated by systemd, use the first LISTEN_FD (3)
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// instead of opening the socket file.
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f := os.NewFile(uintptr(3), "podman.sock")
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l, err := net.FileListener(f)
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if err != nil {
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return err
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}
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listener = &l
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} else {
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l, err := net.Listen(uri.Scheme, path)
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if err != nil {
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return errors.Wrapf(err, "unable to create socket")
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}
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listener = &l
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}
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case "tcp":
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host := uri.Host
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if host == "" {
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// For backward compatibility, support "tcp:<host>:<port>" and "tcp://<host>:<port>"
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host = uri.Opaque
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}
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l, err := net.Listen(uri.Scheme, host)
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if err != nil {
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return errors.Wrapf(err, "unable to create socket %v", host)
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}
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listener = &l
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default:
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logrus.Debugf("Attempting API Service endpoint scheme %q", uri.Scheme)
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}
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}
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// Close stdin, so shortnames will not prompt
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devNullfile, err := os.Open(os.DevNull)
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if err != nil {
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return err
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}
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defer devNullfile.Close()
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if err := unix.Dup2(int(devNullfile.Fd()), int(os.Stdin.Fd())); err != nil {
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return err
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}
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rt, err := infra.GetRuntime(context.Background(), flags, cfg)
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if err != nil {
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return err
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}
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servicereaper.Start()
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infra.StartWatcher(rt)
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server, err := api.NewServerWithSettings(rt, listener, opts)
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if err != nil {
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return err
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}
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defer func() {
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if err := server.Shutdown(true); err != nil {
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logrus.Warnf("Error when stopping API service: %s", err)
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}
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}()
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err = server.Serve()
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if listener != nil {
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_ = (*listener).Close()
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}
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return err
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}
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