mirror of https://github.com/docker/docs.git
87 lines
2.0 KiB
Go
87 lines
2.0 KiB
Go
package api
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import (
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"crypto/tls"
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"fmt"
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"net"
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"net/http"
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"strings"
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log "github.com/Sirupsen/logrus"
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"github.com/docker/swarm/cluster"
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"github.com/docker/swarm/scheduler"
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)
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const DefaultDockerPort = ":2375"
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func newListener(proto, addr string, tlsConfig *tls.Config) (net.Listener, error) {
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l, err := net.Listen(proto, addr)
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if err != nil {
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if strings.Contains(err.Error(), "address already in use") && strings.Contains(addr, DefaultDockerPort) {
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return nil, fmt.Errorf("%s: is Docker already running on this machine? Try using a different port", err)
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}
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return nil, err
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}
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if tlsConfig != nil {
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tlsConfig.NextProtos = []string{"http/1.1"}
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l = tls.NewListener(l, tlsConfig)
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}
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return l, nil
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}
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func ListenAndServe(c *cluster.Cluster, s *scheduler.Scheduler, hosts []string, version string, enableCors bool, tlsConfig *tls.Config) error {
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context := &context{
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cluster: c,
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scheduler: s,
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version: version,
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eventsHandler: NewEventsHandler(),
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tlsConfig: tlsConfig,
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}
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c.Events(context.eventsHandler)
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r := createRouter(context, enableCors)
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chErrors := make(chan error, len(hosts))
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for _, host := range hosts {
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protoAddrParts := strings.SplitN(host, "://", 2)
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if len(protoAddrParts) == 1 {
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protoAddrParts = append([]string{"tcp"}, protoAddrParts...)
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}
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go func() {
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log.Infof("Listening for HTTP on %s (%s)", protoAddrParts[0], protoAddrParts[1])
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var (
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l net.Listener
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err error
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server = &http.Server{
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Addr: protoAddrParts[1],
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Handler: r,
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}
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)
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switch protoAddrParts[0] {
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case "unix":
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l, err = newUnixListener(protoAddrParts[1], tlsConfig)
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case "tcp":
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l, err = newListener("tcp", protoAddrParts[1], tlsConfig)
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default:
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err = fmt.Errorf("unsupported protocol: %q", protoAddrParts[0])
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}
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if err != nil {
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chErrors <- err
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} else {
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chErrors <- server.Serve(l)
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}
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}()
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}
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for i := 0; i < len(hosts); i++ {
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err := <-chErrors
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if err != nil {
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return err
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}
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}
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return nil
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}
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