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listener.go
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listener.go
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package command
import (
"github.com/mailgun/vulcand/Godeps/_workspace/src/github.com/codegangsta/cli"
"github.com/mailgun/vulcand/engine"
)
func NewListenerCommand(cmd *Command) cli.Command {
return cli.Command{
Name: "listener",
Usage: "Operations with socket listeners",
Subcommands: []cli.Command{
{
Name: "ls",
Usage: "List all listeners",
Flags: []cli.Flag{},
Action: cmd.printListenersAction,
},
{
Name: "show",
Usage: "Show listener details",
Flags: []cli.Flag{
cli.StringFlag{Name: "id", Usage: "listener id"},
},
Action: cmd.printListenerAction,
},
{
Name: "upsert",
Usage: "Update or insert a listener",
Flags: append([]cli.Flag{
cli.StringFlag{Name: "id", Usage: "id"},
cli.StringFlag{Name: "proto", Usage: "protocol, either http or https"},
cli.StringFlag{Name: "net", Value: "tcp", Usage: "network, tcp or unix"},
cli.StringFlag{Name: "addr", Value: "tcp", Usage: "address to bind to, e.g. 'localhost:31000'"},
cli.StringFlag{Name: "scope", Usage: "scope expression limits the listener, e.g. 'Hostname(`myhost`)'"},
}, getTLSFlags()...),
Action: cmd.upsertListenerAction,
},
{
Name: "rm",
Usage: "Remove a listener",
Action: cmd.deleteListenerAction,
Flags: []cli.Flag{
cli.StringFlag{Name: "id", Usage: "id"},
},
},
},
}
}
func (cmd *Command) upsertListenerAction(c *cli.Context) {
var settings *engine.HTTPSListenerSettings
if c.String("proto") == engine.HTTPS {
s, err := getTLSSettings(c)
if err != nil {
cmd.printError(err)
return
}
settings = &engine.HTTPSListenerSettings{TLS: *s}
}
listener, err := engine.NewListener(c.String("id"), c.String("proto"), c.String("net"), c.String("addr"), c.String("scope"), settings)
if err != nil {
cmd.printError(err)
return
}
if err := cmd.client.UpsertListener(*listener); err != nil {
cmd.printError(err)
return
}
cmd.printOk("listener upserted")
}
func (cmd *Command) deleteListenerAction(c *cli.Context) {
if err := cmd.client.DeleteListener(engine.ListenerKey{Id: c.String("id")}); err != nil {
cmd.printError(err)
}
cmd.printOk("listener deleted")
}
func (cmd *Command) printListenersAction(c *cli.Context) {
ls, err := cmd.client.GetListeners()
if err != nil {
cmd.printError(err)
return
}
cmd.printListeners(ls)
}
func (cmd *Command) printListenerAction(c *cli.Context) {
l, err := cmd.client.GetListener(engine.ListenerKey{Id: c.String("id")})
if err != nil {
cmd.printError(err)
return
}
cmd.printListener(l)
}