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docker port: lookup public-facing tcp ports for a container

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This commit is contained in:
Solomon Hykes 2013-03-06 00:39:03 -08:00
parent 791592731e
commit 410ebe379d
1 changed files with 25 additions and 0 deletions
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25
server/server.go
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@ -44,6 +44,7 @@ func (srv *Server) Help() string {
{"ps", "Display a list of containers"},
{"pull", "Download a tarball and create a container from it"},
{"put", "Upload a tarball and create a container from it"},
{"port", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT"},
{"rm", "Remove containers"},
{"kill", "Kill a running container"},
{"wait", "Wait for the state of a container to change"},
@ -311,6 +312,30 @@ func (srv *Server) CmdInspect(stdin io.ReadCloser, stdout io.Writer, args ...str
return nil
}
func (srv *Server) CmdPort(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "port", "[OPTIONS] CONTAINER PRIVATE_PORT", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT")
if err := cmd.Parse(args); err != nil {
cmd.Usage()
return nil
}
if cmd.NArg() != 2 {
cmd.Usage()
return nil
}
name := cmd.Arg(0)
privatePort := cmd.Arg(1)
if container := srv.containers.Get(name); container == nil {
return errors.New("No such container: " + name)
} else {
if frontend, exists := container.NetworkSettings.PortMapping[privatePort]; !exists {
return fmt.Errorf("No private port '%s' allocated on %s", privatePort, name)
} else {
fmt.Fprintln(stdout, frontend)
}
}
return nil
}
// 'docker rmi NAME' removes all images with the name NAME
func (srv *Server) CmdRmi(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "rmimage", "[OPTIONS] IMAGE", "Remove an image")