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Use a constant for PortSpecTemplate + display the template in the CmdRun help

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Guillaume J. Charmes 2013-11-22 10:36:49 -08:00
parent 476559458d
commit 1f9223a7c2
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2 changed files with 9 additions and 2 deletions
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3
commands.go
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@ -1762,10 +1762,11 @@ func parseRun(cmd *flag.FlagSet, args []string, capabilities *Capabilities) (*Co
_ = cmd.Bool("sig-proxy", true, "Proxify all received signal to the process (even in non-tty mode)")
_ = cmd.String("name", "", "Assign a name to the container")
)
cmd.Var(flAttach, "a", "Attach to stdin, stdout or stderr.")
cmd.Var(flVolumes, "v", "Bind mount a volume (e.g. from the host: -v /host:/container, from docker: -v /container)")
cmd.Var(&flPublish, "p", "Publish a container's port to the host (use 'docker port' to see the actual mapping)")
cmd.Var(&flPublish, "p", fmt.Sprintf("Publish a container's port to the host (format: %s) (use 'docker port' to see the actual mapping)", PortSpecTemplateFormat))
cmd.Var(&flExpose, "expose", "Expose a port from the container without publishing it to your host")
cmd.Var(&flEnv, "e", "Set environment variables")
cmd.Var(&flDns, "dns", "Set custom dns servers")

8
utils.go
View file

@ -206,6 +206,12 @@ func parseLxcOpt(opt string) (string, string, error) {
return strings.TrimSpace(parts[0]), strings.TrimSpace(parts[1]), nil
}
// FIXME: network related stuff (including parsing) should be grouped in network file
const (
PortSpecTemplate = "ip:hostPort:containerPort"
PortSpecTemplateFormat = "ip:hostPort:containerPort | ip::containerPort | hostPort:containerPort"
)
// We will receive port specs in the format of ip:public:private/proto and these need to be
// parsed in the internal types
func parsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
@ -227,7 +233,7 @@ func parsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding,
rawPort = fmt.Sprintf(":%s", rawPort)
}
parts, err := utils.PartParser("ip:hostPort:containerPort", rawPort)
parts, err := utils.PartParser(PortSpecTemplate, rawPort)
if err != nil {
return nil, nil, err
}