/
main.go
75 lines (64 loc) · 1.52 KB
/
main.go
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package main
import (
"fmt"
"os"
"github.com/Sirupsen/logrus"
"github.com/docker/engine-api/client"
"github.com/pkg/errors"
"github.com/rancher/go-rancher-metadata/metadata"
"github.com/rancher/l2flat-helper/macsync"
"github.com/rancher/l2flat-helper/setting"
"github.com/urfave/cli"
)
var VERSION = "v0.0.0-dev"
func main() {
app := cli.NewApp()
app.Name = "l2flat-helper"
app.Version = VERSION
app.Usage = "Support l2-flat networking"
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "listen",
Value: ":10110",
},
cli.BoolFlag{
Name: "debug, d",
EnvVar: "RANCHER_DEBUG",
},
cli.StringFlag{
Name: "metadata-address",
Value: setting.DefaultMetadataAddress,
EnvVar: "RANCHER_METADATA_ADDRESS",
},
}
app.Action = func(c *cli.Context) {
if err := appMain(c); err != nil {
logrus.Fatal(err)
}
}
app.Run(os.Args)
}
func appMain(ctx *cli.Context) error {
if ctx.Bool("debug") {
logrus.SetLevel(logrus.DebugLevel)
}
done := make(chan error)
mc, err := metadata.NewClientAndWait(fmt.Sprintf(setting.MetadataURL, ctx.String("metadata-address")))
if err != nil {
return errors.Wrap(err, "Failed to create metadata client")
}
dc, err := client.NewEnvClient()
if err != nil {
return errors.Wrap(err, "Failed to create docker client")
}
err = macsync.Watch(mc, dc)
if err != nil {
return err
}
listenPort := ctx.String("listen")
logrus.Debugf("About to start server and listen on port: %v", listenPort)
go func() {
done <- ListenAndServe(listenPort)
}()
return <-done
}